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Oracle tutorial : How to create Id with AUTO INCREMENT in Oracle PL SQL
 
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Oracle tutorial: How to create Id with AUTO INCREMENT in Oracle oracle tutorial for beginners sequence in oracle identity key in sql In this Oracle tutorial , we can create an auto increment field using ‘sequence’ object that can be assigned as primary keys. Using Oracle ‘sequence’ object, you can generate new values for a column. An Oracle sequence is an object like a table or a stored procedure. Examples CREATE SEQUENCE SYSTEM.MYSEQ START WITH 1 MAXVALUE 999999999999999999999999999 MINVALUE 1 NOCYCLE CACHE 20 NOORDER; CREATE OR REPLACE TRIGGER TR_CITY BEFORE INSERT ON CITY FOR EACH ROW BEGIN SELECT LPAD(LTRIM(RTRIM(TO_CHAR(myseq.NEXTVAL))),10,'0') INTO :NEW.id FROM DUAL; END; / Subscribe on youtube: https://www.youtube.com/channel/UCpiyAesWNYOXSz5GPq8lbkA For more tutorial please visit #techquerypond https://techquerypond.wordpress.com https://twitter.com/techquerypond identity column
Views: 9346 Tech Query Pond
auto increment in sql oracle - ( Auto increment field )
 
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auto increment in sql oracle ----------------------------------------------- CREATE table customers ( customer_id int not null, customer_name varchar(50), primary key (customer_id) ); create sequence customer_id minvalue 1 start with 1 cache 10; insert into customers values(customer_id.nextval,'maxwel'); -- to drop sequence drop sequence customer_id
Views: 5437 Data Disc
How to Fetch Latest record/row from the Table in Oracle Database
 
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You will learn how to How to Fetch Latest record/row from the Table in Oracle Database. Realtime Scenario: This logic can be implemented to find whether the latest record should be inserted or updated to datawarehouse
Oracle tutorial : sys_refcursor  in oracle pl sql (sys_refcursor)
 
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Oracle tutorial : sys_refcursor in oracle pl sql oracle tutorial for beginners cursor in pl sql we can use sys_refcursor as OUT parameter. A cursor is a pointer to a result set for a query. By returning a sys_refcursor you allow the client to fetch many rows from the query as it requires. basically we use sys ref cursor to return set of rows to client. so client can use this result set. u can fetch multiple rows. lets see example.. CREATE OR REPLACE PROCEDURE get_my_list (list OUT SYS_REFCURSOR) AS BEGIN OPEN list FOR SELECT ALTID, FNAME, LNAME FROM EMPLOYEE; END get_my_list; / DECLARE l_cursor SYS_REFCURSOR; ID VARCHAR2(20); FNAME VARCHAR2(20); LNAME VARCHAR2(20); BEGIN get_my_list (list = l_cursor); LOOP FETCH l_cursor INTO ID, FNAME, LNAME; EXIT WHEN l_cursor%NOTFOUND; DBMS_OUTPUT.PUT_LINE(ID || ' | ' || FNAME || ' | ' || LNAME); END LOOP; CLOSE l_cursor; END; / Subscribe on youtube: https://www.youtube.com/channel/UCpiyAesWNYOXSz5GPq8lbkA For more tutorial please visit #techquerypond https://techquerypond.wordpress.com https://twitter.com/techquerypond database cursor example database cursor sql server cursor
Views: 1992 Tech Query Pond
39.How to get primary key value (auto-generated keys) from inserted queries using JDBC?
 
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In this video you will learn How to get primary key value (auto-generated keys) from inserted queries in JDBC using a demo project. Below is the GitHub link to download source code: https://github.com/kishanjavatrainer/GetPrimaryKeyReturnDemo.git
Views: 2861 KK JavaTutorials
SQL query to find first record and last record in single query
 
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SQL query to find first record and last record in single query
Views: 8766 SQL Guru
How Generate Custom ID in SQL
 
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This tutorial will teach how to generate custom unique id's in Sql Server. Also please file links to download scripts below. https://github.com/vetrivelandyou/RecordedProject/blob/master/How-to-generate-custom-id-in-sql/SQLQuery.sql
Views: 5038 Vetrivel D
SQL script to insert into many to many table
 
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Text Article http://csharp-video-tutorials.blogspot.com/2017/02/sql-script-to-insert-into-many-to-many.html Slides http://csharp-video-tutorials.blogspot.com/2017/02/sql-script-to-insert-into-many-to-many_6.html SQL Server Interview Questions and Answers text articles & slides http://csharp-video-tutorials.blogspot.com/2014/05/sql-server-interview-questions-and.html SQL Server Interview Questions and Answers playlist https://www.youtube.com/playlist?list=PL6n9fhu94yhXcztdLO7i6mdyaegC8CJwR All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists In this video we will discuss how to insert data into a table that has many-to-many relationship Create table Students ( Id int primary key identity, StudentName nvarchar(50) ) Go Create table Courses ( Id int primary key identity, CourseName nvarchar(50) ) Go Create table StudentCourses ( StudentId int not null foreign key references Students(Id), CourseId int not null foreign key references Courses(Id) ) Go Students - Id column is identity column Courses - Id column is identity column StudentCourses - StudentId and CourseId columns are foreign keys referencing Id column in Students and Courses tables As you can see, StudentCourses is a bridge table that has many to many relationship with Students and Courses tables. This means a given student can be enrolled into many courses and a given course can have many students enrolled. Below is the question asked in an interview for SQL Server Developer role. Write a SQL script to insert data into StudentCourses table. Here are the rules that your script should follow. 1. There will be 2 inputs for the script Student Name - The name of the student who wants to enroll into a course Course Name - The name of the course the student wants to enroll into 2. If the student is already in the Students table, then use that existing Student Id. If the student is not already in the Students table, then a row for that student must be inserted into the Students table, and use that new student id. 3. Along the same lines, if the course is already in the Courses table, then use that existing Course Id. If the course is not already in the Courses table, then a row for that course must be inserted into the Courses table, and use that new course id. 4. There should be no duplicate student course enrollments, i.e a given student must not be enrolled in the same course twice. For example, Tom must not be enrolled in C# course twice. Answer : To avoid duplicate student course enrollments create a composite primary key on StudentId and CourseId columns in StudentCourses table. With this composite primary key in place, if someone tries to enroll the same student in the same course again we get violation of primary key constraint error. Alter table StudentCourses Add Constraint PK_StudentCourses Primary Key Clustered (CourseId, StudentId) Here is the SQL script that inserts data into the 3 tables as expected Declare @StudentName nvarchar(50) = 'Sam' Declare @CourseName nvarchar(50) = 'SQL Server' Declare @StudentId int Declare @CourseId int -- If the student already exists, use the existing student ID Select @StudentId = Id from Students where StudentName = @StudentName -- If the course already exists, use the existing course ID Select @CourseId = Id from Courses where CourseName = @CourseName -- If the student does not exist in the Students table If (@StudentId is null) Begin -- Insert the student Insert into Students values(@StudentName) -- Get the Id of the student Select @StudentId = SCOPE_IDENTITY() End -- If the course does not exist in the Courses table If (@CourseId is null) Begin -- Insert the course Insert into Courses values(@CourseName) -- Get the Id of the course Select @CourseId = SCOPE_IDENTITY() End -- Insert StudentId & CourseId in StudentCourses table Insert into StudentCourses values(@StudentId, @CourseId) If required, we can very easily convert this into a stored procedure as shown below. Create procedure spInsertIntoStudentCourses @StudentName nvarchar(50), @CourseName nvarchar(50) as Begin Declare @StudentId int Declare @CourseId int Select @StudentId = Id from Students where StudentName = @StudentName Select @CourseId = Id from Courses where CourseName = @CourseName If (@StudentId is null) Begin Insert into Students values(@StudentName) Select @StudentId = SCOPE_IDENTITY() End If (@CourseId is null) Begin Insert into Courses values(@CourseName) Select @CourseId = SCOPE_IDENTITY() End Insert into StudentCourses values(@StudentId, @CourseId) End Use the following statement to execute the stored procedure Execute spInsertIntoStudentCourses 'Tom','C#'
Views: 80882 kudvenkat
SQL tutorial 61: SEQUENCE in Oracle Database By Manish Sharma RebellionRider
 
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This tutorial is all about Sequence In Oracle Database. In this SQL Tutorial you will learn How to create a sequence How to populate a Primary key column (auto increment in Oracle) using Sequence How to drop a sequence ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/sql-sequence-in-oracle-database-rebellionrider-manish-sharma Previous Tutorial ► How To Insert Data into Table using SQL Developer http://youtu.be/YYQCSV6MzTk ► INSERT INTO Command http://youtu.be/uQXgqFtxI_k ► How to copy /Insert data into a table from another table http://youtu.be/m3Ep8tAMqok ------------------------------------------------------------------------- ►►►Help Me In Getting A Job◄◄◄ ►Help Me In Getting A Good Job By Connecting With Me on My LinkedIn and Endorsing My Skills. All My Contact Info is Down Below. You Can Also Refer Me To Your Company Thanks ------------------------------------------------------------------------- Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at for E-mail address please check About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 42523 Manish Sharma
PL/SQL tutorial 3: SELECT INTO statement in PL/SQL by Manish Sharma RebellionRider
 
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How to initialize the variable by fetching values from the table of the database or by using SELECT INTO statement in PL/SQL by Manish Sharma RebellionRider ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/select-into-statement-pl-sql Previous Tutorial ► Variables: https://youtu.be/2MNmodawvnE ------------------------------------------------------------------------- ►►►Let's Get Free Uber Cab◄◄◄ Use Referral Code UberRebellionRider and get $20 free for your first ride. -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at for E-mail address please check About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 119643 Manish Sharma
How to Insert Into Table In SQL
 
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Follow this step by step easy tutorial to learn how to insert data into the tables in SQL Server Database via queries. Don't forget to check out our site http://howtech.tv/ for more free how-to videos! http://youtube.com/ithowtovids - our feed http://www.facebook.com/howtechtv - join us on facebook https://plus.google.com/103440382717658277879 - our group in Google+ The data inside the database is held by the tables. The data can be inserted in these tables either by the queries or even with a straightaway Graphical method. In this tutorial we will see both the methods. Step 1 -- Locating the Appropriate Database First of all, we need to locate and expand the database where that particular table is present. After that, expand the table's directory. Then we will insert the data in the Inventory table. If we move into the column section, it can be seen that there are four fields which have to be added, namely the ID, the Product Name, the Quantity and the Price. Step 2 -- Writing query for inserting record Now to insert in table, SQL query would be: Insert into Inventory (id,Product,quantity,price) values (1,'abc',12,255.32); Make sure that each value is separated by a comma. Once done, simply press F5 to execute the query. At the bottom, in the messages section, a message will appear about table rows that have been affected. Step 3 -- Another Method of Insertion We can also insert data in a table by simply giving the values straight away. For that just write the following query: Insert into Inventory values (1,'ab2',30,300.36); Make sure that the values in query in SQL inserted into table are in the same order as the order of columns in the table. Now let's execute this query and in the messages section, you can see the rows that have been affected. To insert in table, SQL queries are required to be written with much care as error can arise if we just miss to insert ellipsis even. Step 4 -- Viewing Table Data Now let's check the table to see if the data has been inserted correctly. For that let us fetch all records from the inventory table and for that, write: Select * from inventory When we execute the query, you can see all the records in the results section below, and they are exactly the same as we mentioned in the query in earlier steps. Step 5 --Alternate Method of inserting data To insert in table, SQL provides another way through which we don't have to write SQL insert into table queries. For that, just right click on the inventory table and choose the 'Edit top 200 rows' option. Step 6 -- Inserting data in Fields Over here, we can start inserting the data in the table straight away, without using the queries. All we have to do is type the records in the fields and press enter to save the changes made in each field. And that is how data is inserted in tables in SQL using insert keyword.
SQL Tutorial - 13: Inserting Data Into a Table From Another Table
 
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In this tutorial we'll learn to use the INSERT Query to copy data from one table into another.
Views: 246724 The Bad Tutorials
SQL tutorial 33:How To Insert Data into a Table Using SQL INSERT INTO dml statement
 
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SQL Tutorial 33: How to insert data into table using SQL Insert Into dml statement Tutorial Consist: SQL Insert statement syntax for inserting data in selected columns of a table. SQL Insert Statement syntax for inserting data into all the columns of a table.With example of both the syntax. 0:27: Structure of student table used in this tutorial 0:49: Syntax 1 for inserting data in selected columns of a table 1:19: Syntax 2 for inserting data into all the columns of a table. 2:02: Query 1 example of syntax 2 4:21: Things to remember about SQL Insert Into DML 5:00: Query 2 example of Syntax 1 Links: Blog on Insert Into statement http://bit.ly/sql-insert-into Primary Key Tutorial : http://youtu.be/jB1btTR_b4s Foreign Key Tutorial : http://youtu.be/0nbkBI5r3Gw Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Amazon Wishlist: http://bit.ly/wishlist-amazon Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com
Views: 29835 Manish Sharma
Part-3 (Oracle Procedures) Oracle PL SQL Training - Fast Track Series
 
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Oracle Procedures Is a group of PL SQL statement that can call by name. Syntax CREATE [OR REPLACE] PROCEDURE procedure_name [ (parameter [,parameter]) ] IS | AS [declaration_section] BEGIN executable_section [EXCEPTION exception_section] END [procedure_name]; Example:1 of procedure having Only parameter procedure. create or replace procedure insert_employee ( p_emp_name varchar2, p_deptno IN number ) is begin Insert into emp (id,name,deptno) values (emp_id_seq.nextval, p_emp_name, p_deptno); commit; end insert_employee; / Prerequisite for the Example:1 1. Need create emp table create table emp( id number, name varchar2(200), deptno number ); 2. Create sequence object. create sequence emp_id_seq start with 1 Increment by 1 nomaxvalue nocycle; How to call procedure created in Example:1 exec insert_employee('sanket',10); Or begin insert_employee('sanket',10); end; set pagesize 100 set linesize 100 column id format 999 column name format a6 column deptno format 999 select * from emp; ID NAME DEPTNO ---- ------ ------ 1 sanket 10 Example:2 of procedure having In/Out parameter procedure create or replace procedure insert_employee ( p_emp_name varchar2, p_deptno IN number, p_message OUT varchar2 ) is begin Insert into emp (id,name,deptno) values (emp_id_seq.nextval, p_emp_name, p_deptno); commit; p_message:= 'one row inserted...'; end insert_employee; / How to call procedure created in Example:2 set serveroutput on; declare v_message varchar2(100); begin insert_employee(‘',20,v_message); dbms_output.put_line(v_message); end; select * from emp; ID NAME DEPTNO ---- ------ ------ 1 sanket 10
Views: 1566 Sanket Patel
TSQL: Get Last Row of Data In A Table
 
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Return the final row of data in a table
Views: 6692 SQLInSix Minutes
Oracle tutorial : Global Temporary Table In Oracle PL SQL
 
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Oracle tutorial : Global Temporary Table In Oracle PL SQL create temp table sql This video will explain to you how to create Temporary Tables in Oracle Oracle tutorial : Global Temporary Table In Oracle 1)The data in such a table is stored only as long as the session or transaction lasts and is private for each session. 2)The definition is visible to all sessions. 3)After commit or disconnection, the data is lost but the definition of the table remains. 4)Indexes created on a temporary. 5)Scope of TRUNCATE command is a single database session. There is no effect of TRUNCATE on other sessions. 6)Foreign key constraints are not applicable in case of Temporary tables 7)Temporary tables cannot contain column of persistent collection type Syntax : CREATE GLOBAL TEMPORARY TABLE table_name ( column_name column_data_type … … ) ON COMMIT DELETE ROWS; CREATE GLOBAL TEMPORARY TABLE Emp ( id number(5) NOT NULL, name varchar2(50) NOT NULL, city varchar2(50) NOT NULL ) ON COMMIT DELETE ROWS INSERT INTO Emp VALUES (1, ‘Test1’, ‘city1’); INSERT INTO Emp VALUES (2, ‘Test2’, ‘city2’); INSERT INTO Emp VALUES (3, ‘Test3’, ‘city3’); SELECT COUNT(*) FROM emp; Result = 3 rows COMMIT; SELECT COUNT(*) FROM emp; Result = 0 rows For more tutorial please visit #techquerypond https://techquerypond.com https://techquerypond.wordpress.com https://twitter.com/techquerypond oracle temporary table create temporary table sql temp table
Views: 3890 Tech Query Pond
Insert Update Delete View and search data from database in C#.net
 
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Need Help Or Need code? Feel Free To Contact Us Here http://www.noblecomputer.co.in/support.php using this tutorial you can easily understand that how you can do Insert Update Delete and View data from database in C#.net | insert update delete in c#.net | Insert Update Delete View and search data from database in C#.net,Legen Ansicht aktualisieren und Suchdaten aus der Datenbank in C # .net Löschen,Insérez Update Supprimer Afficher et recherche les données de base de données en C # .net, database connectivity in c#, c# connection to sql server.
Views: 355497 Amit Andipara
SQL Server 30 - How to INSERT Data
 
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Now that we have our tables created, we need to learn how to actually put data into our tables. That is where the INSERT command comes in. The basic syntax looks like: INSERT INTO TableName VALUES(data…); Data is where we put a value for each column. Strings are single quoted, numbers are left blank with no quotes. Just like when we create tables we try to create the parent tables first, we do the same with inserting data. We always want to insert the parent rows first. So let's add a species to our table. As a reminder, this is what our CREATE TABLE looks like: CREATE TABLE Species( ID INT PRIMARY KEY IDENTITY, Species VARCHAR(50) NOT NULL UNIQUE, FriendlyName VARCHAR(50) NOT NULL ); Now to insert data: INSERT INTO Species VALUES('Pentalagus P. furnessi', 'Bunny'); Now you can see that there may a violation of everything being atomic because we are actually storing the genus and species of this animal in one column. But…YOLO. Now we can view this data by finding the table in the object explorer, right clicking, and selecting Edit Top 200 Rows. Notice that the IDENTITY column is automatically filled. Now, this is a great time to show you some stuff regarding foreign keys. The first thing I want to show you is how they protect our data integrity. Let's insert some data in the Animals table and try to reference an invalid species. Once again, here is what our table creation looks like: CREATE TABLE Animals( ID INT PRIMARY KEY IDENTITY, Name VARCHAR(50) NOT NULL, Species INT NOT NULL REFERENCES Species(ID), ContactEmail VARCHAR(50) NOT NULL UNIQUE ); INSERT INTO Animals VALUES('Sally', 2, '[email protected]'); SQL Server does not let us insert this data. The second thing I wanted to show you is that the name of the constraint that is in violation is being shown here. That is why naming your constraints can come in handy so when this happens you can find it much easier. Last thing is that if you want to INSERT multiple rows, throw a comma after the VALUES, and put another parenthesis with more data: INSERT INTO Animals VALUES('Sally', 1', '[email protected]'), ('Franklin', 1, '[email protected]') ; Maybe someday we will get around to adding a row to our species table for turtles, but for now we are going to make Franklin a bunny. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 3600 Caleb Curry
SQL tutorial 32: How To Insert Data into a Table Using SQL Developer
 
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SQL Tutorial 32 How To Insert Data into a Table Using SQL Developer and How to delete Data/Row From a table. Website : http://www.RebellionRider.com New Series of #SQL tutorial on How to Insert Data. I'll cover all the traditional way along with some tips and tricks on Data insertion. Keep watching and enjoy #SQLing Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Amazon Wishlist: http://bit.ly/wishlist-amazon Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for liking, commenting, sharing and watching more of our videos This is Manish from www.RebellionRider.com
Views: 50045 Manish Sharma
How To Get Last Inserted ID Sql Server
 
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This this tutorial you will learn how get the last inserted in sql server 2008 or later
Views: 1689 Dot Net In Bangla
Oracle Sequence 12C
 
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How to find Sequence name generated by default in Oracle. CREATE TABLE TEST_SEQ ( ID NUMBER(10) GENERATED BY DEFAULT ON NULL AS IDENTITY, SEQ_NAME VARCHAR2(100), SEQ_DET VARCHAR2(1000)) TABLESPACE USERS / DECLARE NSEQ_ID NUMBER := 0; BEGIN INSERT INTO TEST_SEQ (SEQ_NAME , SEQ_DET) VALUES('TEST','TEST SEQUENCE') RETURNING ID INTO NSEQ_ID; COMMIT; DBMS_OUTPUT.PUT_LINE('SEQUENCE ID : - '||NSEQ_ID); END; / SELECT UOT.OBJECT_NAME , UOS.OBJECT_NAME , US.LAST_NUMBER FROM SYS.IDNSEQ$ C , USER_OBJECTS UOT , USER_OBJECTS UOS , USER_SEQUENCES US WHERE C.OBJ# = UOT.OBJECT_ID AND C.SEQOBJ# = UOS.OBJECT_ID AND UOS.OBJECT_NAME = US.SEQUENCE_NAME AND UOT.OBJECT_NAME = 'TEST_SEQ' /
Views: 20 Nivas Shelke
How to insert data in two tables at a time in php || Part-1
 
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This will be done using different . The process is like this: ..................................................................................................... You can run multiple INSERTS once, however you cannot insert into two tables from one single INSERT Statement. Also make sure to get the last inserted ID with LAST_INSERT_ID() for the foreign key and use a semicolon ; between the two INSERTS ..................................................................................................... Code part will be updated in part-2 ..... ................................................................................................... Keep update with us-- https://techshubhasis.blogspot.com/ https://www.smyoutube.com/
Views: 2298 SM learning
Difference between sequence and identity in SQL Server
 
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sql server identity vs sequence In this video we will discuss the difference between SEQUENCE and IDENTITY in SQL Server This is continuation to Part 134. Please watch Part 134 from SQL Server tutorial before proceeding. Sequence object is similar to the Identity property, in the sense that it generates sequence of numeric values in an ascending order just like the identity property. However there are several differences between the 2 which we will discuss in this video. Identity property is a table column property meaning it is tied to the table, where as the sequence is a user-defined database object and is not tied to any specific table meaning it's value can be shared by multiple tables. Example : Identity property tied to the Id column of the Employees table. CREATE TABLE Employees ( Id INT PRIMARY KEY IDENTITY(1,1), Name NVARCHAR(50), Gender NVARCHAR(10) ) Example : Sequence object not tied to any specific table CREATE SEQUENCE [dbo].[SequenceObject] AS INT START WITH 1 INCREMENT BY 1 This means the above sequence object can be used with any table. Example : Sharing sequence object value with multiple tables. Step 1 : Create Customers and Users tables CREATE TABLE Customers ( Id INT PRIMARY KEY, Name NVARCHAR(50), Gender NVARCHAR(10) ) GO CREATE TABLE Users ( Id INT PRIMARY KEY, Name NVARCHAR(50), Gender NVARCHAR(10) ) GO Step 2 : Insert 2 rows into Customers table and 3 rows into Users table. Notice the same sequence object is generating the ID values for both the tables. INSERT INTO Customers VALUES (NEXT VALUE for [dbo].[SequenceObject], 'Ben', 'Male') INSERT INTO Customers VALUES (NEXT VALUE for [dbo].[SequenceObject], 'Sara', 'Female') INSERT INTO Users VALUES (NEXT VALUE for [dbo].[SequenceObject], 'Tom', 'Male') INSERT INTO Users VALUES (NEXT VALUE for [dbo].[SequenceObject], 'Pam', 'Female') INSERT INTO Users VALUES (NEXT VALUE for [dbo].[SequenceObject], 'David', 'Male') GO Step 3 : Query the tables SELECT * FROM Customers SELECT * FROM Users GO Output : Notice the same sequence object has generated the values for ID columns in both the tables To generate the next identity value, a row has to be inserted into the table, where as with sequence object there is no need to insert a row into the table to generate the next sequence value. You can use NEXT VALUE FOR clause to generate the next sequence value. Example : Generating Identity value by inserting a row into the table INSERT INTO Employees VALUES ('Todd', 'Male') Example : Generating the next sequence value using NEXT VALUE FOR clause. SELECT NEXT VALUE FOR [dbo].[SequenceObject] Maximum value for the identity property cannot be specified. The maximum value will be the maximum value of the correspoding column data type. With the sequence object you can use the MAXVALUE option to specify the maximum value. If the MAXVALUE option is not specified for the sequence object, then the maximum value will be the maximum value of it's data type. Example : Specifying maximum value for the sequence object using the MAXVALUE option CREATE SEQUENCE [dbo].[SequenceObject] START WITH 1 INCREMENT BY 1 MAXVALUE 5 CYCLE option of the Sequence object can be used to specify whether the sequence should restart automatically when the max value (for incrementing sequence object) or min value (for decrementing sequence object) is reached, where as with the Identity property we don't have any such option to automatically restart the identity values. Example : Specifying the CYCLE option of the Sequence object, so the sequence will restart automatically when the max value is exceeded CREATE SEQUENCE [dbo].[SequenceObject] START WITH 1 INCREMENT BY 1 MINVALUE 1 MAXVALUE 5 CYCLE Text version of the video http://csharp-video-tutorials.blogspot.com/2015/10/difference-between-sequence-and.html Slides http://csharp-video-tutorials.blogspot.com/2015/10/difference-between-sequence-and_27.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 34045 kudvenkat
How to create Trigger in sql using oracle 10g
 
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This video gives information about How to create Trigger in sql using oracleXE 10g
Views: 1018 AvilTwo Beginer
SQL Distinct and Multiple Columns
 
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Jamie King of Neumont University showing how SQL DISTINCT varies when multiple columns are present in the result set.
Views: 18776 Jamie King
Send datatable as parameter to stored procedure
 
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how to pass datatable to stored procedure in c#.net pass datatable to stored procedure in sql server 2008 In this video we will discuss how to send datatable as parameter to stored procedure. This is continuation to Part 99. Please watch Part 99 from SQL Server tutorial before proceeding. In Part 99, we discussed creating a stored procedure that accepts a table as a parameter. In this video we will discuss how to pass a datatable from a web application to the SQL Server stored procedure. Here is what we want to do. 1. Design a webform to insert 5 employees at a time into the database table. 2. When "Insert Employees" button is clicked, retrieve the from data into a datatabe and then pass the datatable as a parameter to the stored procedure. 3. The stored procedure will then insert all the rows into the Employees table in the database. WebForm1.aspx.cs code using System; using System.Configuration; using System.Data; using System.Data.SqlClient; namespace Demo { public partial class WebForm1 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) {} private DataTable GetEmployeeData() { DataTable dt = new DataTable(); dt.Columns.Add("Id"); dt.Columns.Add("Name"); dt.Columns.Add("Gender"); dt.Rows.Add(txtId1.Text, txtName1.Text, txtGender1.Text); dt.Rows.Add(txtId2.Text, txtName2.Text, txtGender2.Text); dt.Rows.Add(txtId3.Text, txtName3.Text, txtGender3.Text); dt.Rows.Add(txtId4.Text, txtName4.Text, txtGender4.Text); dt.Rows.Add(txtId5.Text, txtName5.Text, txtGender5.Text); return dt; } protected void btnInsert_Click(object sender, EventArgs e) { string cs = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString; using (SqlConnection con = new SqlConnection(cs)) { SqlCommand cmd = new SqlCommand("spInsertEmployees", con); cmd.CommandType = CommandType.StoredProcedure; SqlParameter paramTVP = new SqlParameter() { ParameterName = "@EmpTableType", Value = GetEmployeeData() }; cmd.Parameters.Add(paramTVP); con.Open(); cmd.ExecuteNonQuery(); con.Close(); } } protected void btnFillDummyData_Click(object sender, EventArgs e) { txtId1.Text = "1"; txtId2.Text = "2"; txtId3.Text = "3"; txtId4.Text = "4"; txtId5.Text = "5"; txtName1.Text = "John"; txtName2.Text = "Mike"; txtName3.Text = "Sara"; txtName4.Text = "Pam"; txtName5.Text = "Todd"; txtGender1.Text = "Male"; txtGender2.Text = "Male"; txtGender3.Text = "Female"; txtGender4.Text = "Female"; txtGender5.Text = "Male"; } } Text version of the video http://csharp-video-tutorials.blogspot.com/2015/09/send-datatable-as-parameter-to-stored.html Slides http://csharp-video-tutorials.blogspot.com/2015/09/send-datatable-as-parameter-to-stored_18.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 53974 kudvenkat
How to create Virtual Columns in Oracle Database
 
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How to create Virtual Columns in Oracle Database 12c When queried, virtual columns appear to be normal table columns, but their values are derived rather than being stored on disc. The syntax for defining a virtual column is listed below. column_name [datatype] [GENERATED ALWAYS] AS (expression) [VIRTUAL] If the datatype is omitted, it is determined based on the result of the expression. The GENERATED ALWAYS and VIRTUAL keywords are provided for clarity only. The script below creates and populates an employees table with two levels of commission. It includes two virtual columns to display the commission-based salary. The first uses the most abbreviated syntax while the second uses the most verbose form. CREATE TABLE employees ( id NUMBER, first_name VARCHAR2(10), last_name VARCHAR2(10), salary NUMBER(9,2), comm1 NUMBER(3), comm2 NUMBER(3), salary1 AS (ROUND(salary*(1+comm1/100),2)), salary2 NUMBER GENERATED ALWAYS AS (ROUND(salary*(1+comm2/100),2)) VIRTUAL, CONSTRAINT employees_pk PRIMARY KEY (id) ); INSERT INTO employees (id, first_name, last_name, salary, comm1, comm2) VALUES (1, 'JOHN', 'DOE', 100, 5, 10); INSERT INTO employees (id, first_name, last_name, salary, comm1, comm2) VALUES (2, 'JAYNE', 'DOE', 200, 10, 20); COMMIT; Querying the table shows the inserted data plus the derived commission-based salaries. SELECT * FROM employees; ID FIRST_NAME LAST_NAME SALARY COMM1 COMM2 SALARY1 SALARY2 ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- 1 JOHN DOE 100 5 10 105 110 2 JAYNE DOE 200 10 20 220 240 2 rows selected. SQL The expression used to generate the virtual column is listed in the DATA_DEFAULT column of the [DBA|ALL|USER]_TAB_COLUMNS views. COLUMN data_default FORMAT A50 SELECT column_name, data_default FROM user_tab_columns WHERE table_name = 'EMPLOYEES'; COLUMN_NAME DATA_DEFAULT ------------------------------ -------------------------------------------------- ID FIRST_NAME LAST_NAME SALARY COMM1 COMM2 SALARY1 ROUND("SALARY"*(1+"COMM1"/100),2) SALARY2 ROUND("SALARY"*(1+"COMM2"/100),2) 8 rows selected. SQL Notes and restrictions on virtual columns include: 1)Indexes defined against virtual columns are equivalent to function-based indexes. 2)Virtual columns can be referenced in the WHERE clause of updates and deletes, but they cannot be manipulated by DML. 3)Tables containing virtual columns can still be eligible for result caching. 4)Functions in expressions must be deterministic at the time of table creation, but can subsequently be recompiled and made non-deterministic without invalidating the virtual column. In such cases the following steps must be taken after the function is recompiled: a)Constraint on the virtual column must be disabled and re-enabled. b)Indexes on the virtual column must be rebuilt. c)Materialized views that access the virtual column must be fully refreshed. d)The result cache must be flushed if cached queries have accessed the virtual column. e)Table statistics must be regathered. 5)Virtual columns are not supported for index-organized, external, object, cluster, or temporary tables. 6)The expression used in the virtual column definition has the following restrictions: a.It cannot refer to another virtual column by name. b.It can only refer to columns defined in the same table. c.If it refers to a deterministic user-defined function, it cannot be used as a partitioning key column. e.The output of the expression must be a scalar value. It cannot return an Oracle supplied datatype, a user-defined type, or LOB or LONG RAW.
Views: 456 OracleDBA
Get the last inserted record
 
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Get the last inserted record
How to do insert update delete in MySql Workbench
 
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In this part of the MySQL tutorial, we will insert, update and delete data from MySQL tables. We will use the INSERT, DELETE and UPDATE statements. These statements are part of the SQL Data Manipulation Language, DML. Inserting data The INSERT statement is used to insert data into tables. We will create a new table, where we will do our examples. mysql CREATE TABLE Books(Id INTEGER PRIMARY KEY, Title VARCHAR(100), - Author VARCHAR(60)); We create a new table Books, with Id, Title and Author columns. mysql INSERT INTO Books(Id, Title, Author) VALUES(1, 'War and Peace', - 'Leo Tolstoy'); This is the classic INSERT SQL statement. We have specified all column names after the table name and all values after the VALUES keyword. We add our first row into the table. mysql SELECT * FROM Books; +----+---------------+-------------+ | Id | Title | Author | +----+---------------+-------------+ | 1 | War and Peace | Leo Tolstoy | +----+---------------+-------------+ We have inserted our first row into the Books table. mysql INSERT INTO Books(Title, Author) VALUES ('The Brothers Karamazov', - 'Fyodor Dostoyevsky'); We add a new title into the Books table. We have omitted the Id column. The Id column has AUTO_INCREMENT attribute. This means that MySQL will increase the Id column automatically. The value by which the AUTO_INCREMENT column is increased is controlled by auto_increment_increment system variable. By default it is 1. mysql SELECT * FROM Books; +----+------------------------+--------------------+ | Id | Title | Author | +----+------------------------+--------------------+ | 1 | War and Peace | Leo Tolstoy | | 2 | The Brothers Karamazov | Fyodor Dostoyevsky | +----+------------------------+--------------------+ Here is what we have in the Books table. mysql INSERT INTO Books VALUES(3, 'Crime and Punishment', - 'Fyodor Dostoyevsky'); In this SQL statement, we did not specify any column names after the table name. In such a case, we have to supply all values. mysql REPLACE INTO Books VALUES(3, 'Paradise Lost', 'John Milton'); Query OK, 2 rows affected (0.00 sec) The REPLACE statement is a MySQL extension to the SQL standard. It inserts a new row or replaces the old row if it collides with an existing row. In our table, there is a row with Id=3. So our previous statement replaces it with a new row. There is a message that two rows were affected. One row was deleted and one was inserted. mysql SELECT * FROM Books WHERE Id=3; +----+---------------+-------------+ | Id | Title | Author | +----+---------------+-------------+ | 3 | Paradise Lost | John Milton | +----+---------------+-------------+ This is what we have now in the third column. We can use the INSERT and SELECT statements together in one statement. mysql CREATE TABLE Books2(Id INTEGER PRIMARY KEY AUTO_INCREMENT, - Title VARCHAR(100), Author VARCHAR(60)) type=MEMORY; First, we create a temporary table called Books2 in memory. mysql INSERT INTO Books2 SELECT * FROM Books; Query OK, 3 rows affected (0.00 sec) Records: 3 Duplicates: 0 Warnings: 0 Here we insert all data into the Books2 that we select from the Books table. mysql SELECT * FROM Books2; +----+------------------------+--------------------+ | Id | Title | Author | +----+------------------------+--------------------+ | 1 | War and Peace | Leo Tolstoy | | 2 | The Brothers Karamazov | Fyodor Dostoyevsky | | 3 | Paradise Lost | John Milton | +----+------------------------+--------------------+ We verify it. All OK. mysql INSERT INTO Books(Title, Author) VALUES ('The Insulted and Humiliated', - 'Fyodor Dostoyevsky'), ('Cousin Bette', 'Honore de Balzac'); Query OK, 2 rows affected (0.00 sec) Records: 2 Duplicates: 0 Warnings: 0 We can insert more than one row into the table with the INSERT statement. Here we show how. We can insert data from a file on the filesystem. First, we dump data from the Books table in a books.csv file. mysql SELECT * INTO OUTFILE '/tmp/books.csv' - FIELDS TERMINATED BY ',' - LINES TERMINATED BY '\n' - FROM Books; We write data from the Books table into the books.csv file. The data will be in a CSV format. $ cat /tmp/books.csv 1,War and Peace,Leo Tolstoy 2,The Brothers Karamazov,Fyodor Dostoyevsky 3,Paradise Lost,John Milton 4,The Insulted and Humiliated,Fyodor Dostoyevsky 5,Cousin Bette,Honore de Balzac We show the contents of the books.csv file. mysql TRUNCATE Books; Query OK, 0 rows affected (0.00 sec) mysql SELECT * FROM Books; Empty set (0.00 sec) We delete all data from the table. mysql LOAD DATA INFILE '/tmp/books.csv' - INTO TABLE Books - FIELDS TERMINATED BY ',' - LINES TERMINATED BY '\n'; We use the LOAD DATA INFILE syntax to populate the Books table from the books.csv file.
Views: 197 The Coding Bus
Part 4   Delete duplicate rows in sql
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2014/05/part-4-delete-duplicate-rows-in-sql.html In this video, we will discuss deleting all duplicate rows except one from a sql server table. SQL Script to create Employees table Create table Employees ( ID int, FirstName nvarchar(50), LastName nvarchar(50), Gender nvarchar(50), Salary int ) GO Insert into Employees values (1, 'Mark', 'Hastings', 'Male', 60000) Insert into Employees values (1, 'Mark', 'Hastings', 'Male', 60000) Insert into Employees values (1, 'Mark', 'Hastings', 'Male', 60000) Insert into Employees values (2, 'Mary', 'Lambeth', 'Female', 30000) Insert into Employees values (2, 'Mary', 'Lambeth', 'Female', 30000) Insert into Employees values (3, 'Ben', 'Hoskins', 'Male', 70000) Insert into Employees values (3, 'Ben', 'Hoskins', 'Male', 70000) Insert into Employees values (3, 'Ben', 'Hoskins', 'Male', 70000) The delete query should delete all duplicate rows except one. Here is the SQL query that does the job. PARTITION BY divides the query result set into partitions. WITH EmployeesCTE AS ( SELECT *, ROW_NUMBER()OVER(PARTITION BY ID ORDER BY ID) AS RowNumber FROM Employees ) DELETE FROM EmployeesCTE WHERE RowNumber ] 1
Views: 329452 kudvenkat
How to get the last generated identity column value in SQL Server in arabic
 
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Text version of the video http://csharp-video-tutorials.blogspot.com/2012/08/how-to-get-last-generated-identity.html Slides http://csharp-video-tutorials.blogspot.com/2013/08/part-8-retrieving-identity-column-values.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 1216 kudvenkat.arabic
DML triggers in sql server   Part 43
 
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In this video we will learn about triggers in sql serevr. There are 3 types of triggers 1. DML triggers 2. DDL triggers 3. Logon trigger DML triggers are fired automatically in response to DML events (INSERT, UPDATE & DELETE). DML triggers can be again classified into 2 types 1. After triggers (Sometimes called as FOR triggers) 2. Instead of triggers. After triggers, fires after the triggering action. The INSERT, UPDATE, and DELETE statements, causes an after trigger to fire after the respective statements complete execution. INSTEAD of triggers, fires instead of the triggering action. The INSERT, UPDATE, and DELETE statements, causes an INSTEAD OF trigger to fire INSTEAD OF the respective statement execution. Text version of the video http://csharp-video-tutorials.blogspot.com/2012/09/dml-triggers-part-43.html Slides http://csharp-video-tutorials.blogspot.com/2013/09/part-43-dml-triggers.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 357881 kudvenkat
Using AUTO_INCREMENT columns in MySQL
 
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Complete PHP and MySQL course: https://daveh.io/r/ytphp An AUTO_INCREMENT column in a MySQL or MariaDB database is used to automatically insert a unique integer ID for each new record. So the first record will have an ID of 1, the second an ID of 2, and so on. Is this always the case? Not necessarily. Watch the video to find out why...
Views: 109 Dave Hollingworth
Язык SQL. INSERT и DELETE триггеры в базах данных SQLite.
 
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Рубрика SQLite на сайте: http://zametkinapolyah.ru/zametki-o-mysql/sqlite/ Текстовая версия: http://zametkinapolyah.ru/zametki-o-mysql/tema-13-triggery-v-sql-na-primere-bazy-dannyx-sqlite.html Паблик блога в ВК: https://vk.com/zametkinapolyah Тематическая группа в ВК: https://vk.com/zametki_bd Помощь проекту: WMR: R288272666982 WMZ: Z293550531456 Яндекс.Деньги: 410011531129223 -- INSERT и DELETE триггеры DROP TABLE users; DROP TABLE user_log; CREATE TABLE users( id INTEGER PRIMARY KEY, name TEXT NOT NULL, age INTEGER NOT NULL, address TEXT NOT NULL, mydate TEXT NOT NULL ); CREATE TABLE user_log ( Id_u INTEGER NOT NULL, u_date TEXT NOT NULL, operation TEXT NOT NULL ); -- Мы добавили столбец operation, в котором будем хранить информацию о том, что мы сделали с пользователем: удалили или добавили. -- Напишим новый INSERT триггер, который будет учитывать новый столбец CREATE TRIGGER my_u_log AFTER INSERT ON users BEGIN INSERT INTO user_log(id_u, u_date, operation) VALUES (NEW.id, datetime('now'),'ins'); END; -- Напишем триггер, который будет срабатывать по событию удаления строк CREATE TRIGGER after_delete AFTER DELETE ON users BEGIN INSERT INTO user_log(id_u, u_date, operation) VALUES (OLD.id, datetime('now'), 'del'); END; -- Сделаем проверку INSERT INTO users(name, age, address, mydate) VALUES ('Пупкин', 27, 'Адрес', datetime('now')); INSERT INTO users(name, age, address, mydate) VALUES ('Сумкин', 17, 'Адрес2', datetime('now')); INSERT INTO users(name, age, address, mydate) VALUES ('Иванов', 37, 'Адрес3', datetime('now')); INSERT INTO users(name, age, address, mydate) VALUES ('Петров', 47, 'Адрес4', datetime('now')); INSERT INTO users(name, age, address, mydate) VALUES ('Сидоров', 57, 'Адрес5', datetime('now')); INSERT INTO users(name, age, address, mydate) VALUES ('Парамонов', 7, 'Адрес6', datetime('now')); DELETE FROM users WHERE id = 4; SELECT * FROM user_log; SELECT * FROM users; -- давайте обратим внимание на код триггера AFTER DELETE, в котором мы использовали модификатор OLD, модификатор OLD в SQL и SQLite используется в коде триггера для того, чтобы обратиться к старому значению или к значению, которое хранится в таблице (значение, которое будет изменено или модифицировано).
Oracle Statement Level Triggers Session 1
 
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Oracle SQL PLSQL and Unix Shell Scripting
Views: 985 Sridhar Raghavan
MySQL 15 - Auto Increment (AUTO_INCREMENT)
 
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If you are using surrogate keys, every row is going to need to have a unique value for this column. The easiest way to do this is to just count upwards. The downside is that every time you insert data you are going to have to know what number to use. Fortunately, there is an easier way, with what is known as an AUTO_INCREMENT column. An AUTO_INCREMENT column is a column in a table that automatically counts upwards. If we set the PK column as an AUTO_INCREMENT column, we do not have to worry about keeping track of the numbers we've already used. Now, you can only have one AUTO_INCREMENT column per table, and you can only have one primary key per table. AUTO_INCREMENT has to be used on a primary key or a unique index. It makes sense to make the primary key column the AUTO_INCREMENT column, but you can create any other column as the AUTO_INCREMENT column as long as it has a UNIQUE index. So, for example, if you wanted to use a natural primary key but wanted to have a column that auto increments, you could do that by making the incrementing column UNIQUE. Now, the AUTO_INCREMENT does not force the data to never change. It is important to understand that the concept of surrogate and natural keys is foreign to the database. The database does not care what kind of key you use, as long as the qualifications are met. There are no keywords that say surrogate. There are no keywords that say natural. These are categories that we've made to help us better communicate about primary keys. An interesting thing you can do with primary keys is that you can make a combination of columns the primary key. This is important when more than one column is required to make something unique. In an intermediary table, instead of having an association ID, we can have the combination of two rows as the primary key. This is known as either a compound or composite primary key. In the situation of using natural keys, composite keys are more common. For example, you could have a shopping website that allows multiple people from the same household to use a certain coupon you sent out. In this situation, you could use the address and the person's name as the natural primary key. How do we reference primary keys? This requires what is known as a foreign key, which we will discuss in the next video. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 17606 Caleb Curry
Learn How to Update Data Rows using Update Statement in SQL
 
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Learn about using UPDATE statement in SQL. As the name suggests UPDATE statement is used to update the data rows in a table. The UPDATE statement can update one or multiple column values in single SQL statement. WHERE clause is used to specify the data row to be updated. UPDATE statement without WHERE clause will update all the data rows in the table. Any existing data rows or records in target table remain unaffected. Here are the examples UPDATE statements, UPDATE tablename SET column1 = newvalue; UPDATE tablename SET column1 = newvalue1, column2 = newvalue2 WHERE columnid = 3; Select the "school" database, "USE school;" Run a simple SQL statement to display all the data rows in students table using SQL statement, "SELECT * FROM students;" Here in this result set, take a look at studentid 1. Suppose we have accidentally added this student record under class first instead of second. And now we are going to update this row to change the class value from 'First' to 'Second'. We will use the SQL statement, "UPDATE students SET class = 'Second' WHERE studentid = 1;" Press enter to execute the statement and display all the data rows in 'students' table, "SELECT * FROM students;" And sure enough the class value for studentid 1 is changed from 'First' to 'Second'. Check out the whole playlist of SQL Tutorials or Individual video from the following links, SQL Tutorial for Beginners. Introduction to SQL Basics https://www.youtube.com/playlist?list=PLhwzZMYRiUErXXX0Ryud2R7RjesCEdTqi 1.Learn What is SQL? Introduction to SQL https://www.youtube.com/watch?v=ox6zUOKascs 2.Learn How to Install MySQL Database Server on Windows Operating System https://www.youtube.com/watch?v=vtnoWaydkEU 3.Learn What is Database? How to Create and Show Databases using SQL https://www.youtube.com/watch?v=-yJgWq6K_U8 4.Learn How to Select and Use Existing Database using SQL https://www.youtube.com/watch?v=QMViQ38SPxc 5.Learn How to Delete or Remove Database using SQL https://www.youtube.com/watch?v=wjEOZKvfH4c 6.Learn What is Database Table? How to Create a Database Table using SQL? https://www.youtube.com/watch?v=8SvtNIfzC4o 7.Learn How to Modify or Update Database Table using SQL https://www.youtube.com/watch?v=1he5oZzG33o 8.Learn How to Delete or Remove Database Table using SQL https://www.youtube.com/watch?v=JD87WvBist0 9.Learn How to Add Data Rows in a Table using SQL https://www.youtube.com/watch?v=UB-bQxAQbWg 10.Learn How to Use INSERT INTO SELECT Statement in SQL https://www.youtube.com/watch?v=U4ApxHF4R1g 11.Learn How to Update Data Rows using Update Statement in SQL https://www.youtube.com/watch?v=lE1BmNbFJdo 12.Learn How to Delete Data Rows using Delete Statement in SQL https://www.youtube.com/watch?v=1ViqX1tFgYM Subscribe to my channel: https://www.youtube.com/channel/UCvrq9OowoORTV5Gs_jpADhw
How To : Insert Data Into Database In Java Using JDBC With Eclipse IDE
 
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Java Tutorial, how to insert data into oracle database using jDBC with eclipse IDE. Write sample java program using eclipse IDE : https://www.youtube.com/watch?v=_6x8F02pwyE Swapping 2 number without using third variable in java : https://www.youtube.com/watch?v=HXVPu0_6UKw&t=25s
Views: 20200 Aayan Media
:Old and :New value in pl sql triggers
 
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A plsql tutorial about how to reference old and new column value of a table using :old or :new and how they are related to insert, update or delete dml transaction. Go through this oracle tutorial which will give you the concept about how to use :old and :new references. Here is the trigger example. create or replace trigger trigger_name before insert or update or delete on table_name for each row begin if inserting then dbms_output.put_line("Before inserting Old value is "||:old.column_name||" New value : "||:new.column_name); elsif updating then dbms_output.put_line("Before updating Old value is "||:old.column_name||" New value : "||:new.column_name); elsif deleting then dbms_output.put_line("Before deleting Old value is "||:old.column_name||" New value : "||:new.column_name); end if; end;
Views: 3925 Subhroneel Ganguly
MySQL Database Tutorial - 27 - How to Insert Multiple Rows
 
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Facebook - https://www.facebook.com/TheNewBoston-464114846956315/ GitHub - https://github.com/buckyroberts Google+ - https://plus.google.com/+BuckyRoberts LinkedIn - https://www.linkedin.com/in/buckyroberts reddit - https://www.reddit.com/r/thenewboston/ Support - https://www.patreon.com/thenewboston thenewboston - https://thenewboston.com/ Twitter - https://twitter.com/bucky_roberts
Views: 108287 thenewboston
SQL Error: Cannot insert the value NULL into column ID
 
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https://codedocu.com/Details?d=2139&a=10&f=352&l=0 System.Data.SqlClient.SqlException occurred HResult=0x80131904 Message=Cannot insert the value NULL into column 'IDDetail', table column does not allow nulls. INSERT fails.
Views: 4497 CodeDocu_com
Sql server identity column - How to add Sql identity column by using SQL Mgmt studio 2012
 
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sql server (starting with 2008) no azure database data warehouse parallel. By default the seed and increment are both 1 12 may 2008 an identity column has a name, initial step. How do i add an identity column to table in sql server? Sometime the questions can't find exact syntax for adding property existing. Sql server 2012 auto identity column value jump issue insert into sql table with. Resetting sql server identity columns blackwasp. Managing identity columns with replication in sql server. In these scenarios, see how to replicate tables with setting the identity property on a table when it is created simple task. Identity column in sql server stack overflowidentity wikipediawhy can a table not have more than one identity value falling behind randomly reset how to geek. And when you load it, an error is raised add a row into sql server table that has identity column, the value assigned to column in datatable replaced by generated many databases have ability create automatically incremented numbers. The below snippet will create table called sampletable with id column which has an 3 jun 2015 this is a small example about how to insert rows into setting value for identity on sql server. Auto generated identity column in ms sql server table confirm create with sequence indentity how to an add adding the property existing pro. Sql server performance how to remove the identity column in sql insert records with value ninja code. The metadata is stored at column level not table. My current assignment that i am i've found mapinfo data inserted into sql server spatial is flagged as invalid when try to load it in qgis. Basically the script will do 29 feb 2012 when you import a table with an identity column it is treated like any other regular int datatype. Identity (property) (transact sql) msdn microsoft. Getting an identity column value from sql server ado columns in oracle brent ozar unlimited. An identity column is a in database table that made up of values generated by the microsoft sql server you have options for both seed (starting value) and increment. Seeding and reseeding an identity column is easy relatively safe, if you do it correctly. Sql server identity vs sequence how to define an auto increment primary key in sql table that has reseeding the column eimagine. In sql server, we can use an identity property on a column. This means that as each row is inserted into the table, sql server will automatically increment this microsoft identity columns provide a useful way to generate consecutive numeric values for identifying rows. An example is if 15 jul 2008 microsoft sql server's identity column generates sequential values for new records using a seed value. It would need a rethink though of scalar we are having strange intermittent issue where the identity column randomly, one these tables' values will fall behind, stopping if you using an on your sql server tables, can set next insert value to whatever want. Is there someway to automatically add an identity column when sql server values check thomas larock. when instance is restarted then its auto identity column value jumped based on for customerid column, 'identity(1,1)' specified. Create table with identity column sequence indentity sql server t tutorial 27 jul 2013 here is the question i received on sqlauthority fan page. Sql server identity column? Sql auto increment a field w3schools. Using sql server management studio, i scripted a create to of the existing table and got this [dbo] why does doesn't allow more than one identity column an is ( also known as field ) in database writes 'how can reset not start where it left? ' i've been (this article has updated through 2005. The solution seems to be add an integer 'id' column, identity columns are defined on a table so that the database engine will for many oltp systems in sql server this is often ideal and what i managing with replicated tables your 2005 requires some tlc. Sql how to create table with identity column stack overflow. During 1 aug 2015 difference between sequence and identity in sql server object is introduced 2012, column property the second piece of puzzle constraint, which informs to auto increment numeric value within specified anytime a 21 jul 2016 trying use instead management studio, i have come it says that cannot insert explicit values for 4 sep 2014 when using as your database, you usually an primary key table. Creates an identity column in a table the ms sql server uses keyword to perform auto increment tip specify that 'id' should start at value 10 and by 5, create [dbo].
Views: 10040 Mahasen Powell
how to fetch autoincrement value to textbox from database in c#
 
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In this tutorial I will explain how to fetch auto increment value to textbox from database in c#. I have created form Registration where User will enter his details like name,address etc.the userid will be generated automatically. i have created table with Userid column made it as identity when user clicks on the this form i have textbox userid this textbox should display this auto genereated id.
Views: 16008 Project Shop
Part 1   How to find nth highest salary in sql
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2014/05/part-1-how-to-find-nth-highest-salary_17.html This is a very common SQL Server Interview Question. There are several ways of finding the nth highest salary. By the end of this video, we will be able to answer all the following questions as well. How to find nth highest salary in SQL Server using a Sub-Query How to find nth highest salary in SQL Server using a CTE How to find the 2nd, 3rd or 15th highest salary Let's use the following Employees table for this demo Use the following script to create Employees table Create table Employees ( ID int primary key identity, FirstName nvarchar(50), LastName nvarchar(50), Gender nvarchar(50), Salary int ) GO Insert into Employees values ('Ben', 'Hoskins', 'Male', 70000) Insert into Employees values ('Mark', 'Hastings', 'Male', 60000) Insert into Employees values ('Steve', 'Pound', 'Male', 45000) Insert into Employees values ('Ben', 'Hoskins', 'Male', 70000) Insert into Employees values ('Philip', 'Hastings', 'Male', 45000) Insert into Employees values ('Mary', 'Lambeth', 'Female', 30000) Insert into Employees values ('Valarie', 'Vikings', 'Female', 35000) Insert into Employees values ('John', 'Stanmore', 'Male', 80000) GO To find the highest salary it is straight forward. We can simply use the Max() function as shown below. Select Max(Salary) from Employees To get the second highest salary use a sub query along with Max() function as shown below. Select Max(Salary) from Employees where Salary [ (Select Max(Salary) from Employees) To find nth highest salary using Sub-Query SELECT TOP 1 SALARY FROM ( SELECT DISTINCT TOP N SALARY FROM EMPLOYEES ORDER BY SALARY DESC ) RESULT ORDER BY SALARY To find nth highest salary using CTE WITH RESULT AS ( SELECT SALARY, DENSE_RANK() OVER (ORDER BY SALARY DESC) AS DENSERANK FROM EMPLOYEES ) SELECT TOP 1 SALARY FROM RESULT WHERE DENSERANK = N To find 2nd highest salary we can use any of the above queries. Simple replace N with 2. Similarly, to find 3rd highest salary, simple replace N with 3. Please Note: On many of the websites, you may have seen that, the following query can be used to get the nth highest salary. The below query will only work if there are no duplicates. WITH RESULT AS ( SELECT SALARY, ROW_NUMBER() OVER (ORDER BY SALARY DESC) AS ROWNUMBER FROM EMPLOYEES ) SELECT SALARY FROM RESULT WHERE ROWNUMBER = 3
Views: 885502 kudvenkat
JDBC Program To Insert Some Record Into Oracle Database!!
 
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If You Need To Know How To get connect with the database and How we should store some record into the database then this video is for you. This JDBC program will guide you step by step about how to perform the insertion operation by using java programming.. Your Support is Motivation For Us So Please Support Through Below Way: Please Click like to our Official page to get notified for future video post on this channel. https://www.pinterest.com/cecretpoint/ https://www.facebook.com/Cecretpoint/# https://twitter.com/milan67899 https://www.linkedin.com/in/milan-kumar-patnaik-6b0037112 https://plus.google.com/u/0/113169509173071938150/ https://cecretpoint.blogspot.in
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