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SQL: Delete Vs Truncate Vs Drop
 
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In this tutorial, you'll learn the difference between delete/drop and truncate. PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporation's procedural extension for SQL and the Oracle relational database. PL/SQL is available in Oracle Database (since version 7), TimesTen in-memory database (since version 11.2.1), and IBM DB2 (since version 9.7).[1] Oracle Corporation usually extends PL/SQL functionality with each successive release of the Oracle Database. PL/SQL includes procedural language elements such as conditions and loops. It allows declaration of constants and variables, procedures and functions, types and variables of those types, and triggers. It can handle exceptions (runtime errors). Arrays are supported involving the use of PL/SQL collections. Implementations from version 8 of Oracle Database onwards have included features associated with object-orientation. One can create PL/SQL units such as procedures, functions, packages, types, and triggers, which are stored in the database for reuse by applications that use any of the Oracle Database programmatic interfaces. PL/SQL works analogously to the embedded procedural languages associated with other relational databases. For example, Sybase ASE and Microsoft SQL Server have Transact-SQL, PostgreSQL has PL/pgSQL (which emulates PL/SQL to an extent), and IBM DB2 includes SQL Procedural Language,[2] which conforms to the ISO SQL’s SQL/PSM standard. The designers of PL/SQL modeled its syntax on that of Ada. Both Ada and PL/SQL have Pascal as a common ancestor, and so PL/SQL also resembles Pascal in several aspects. However, the structure of a PL/SQL package does not resemble the basic Object Pascal program structure as implemented by a Borland Delphi or Free Pascal unit. Programmers can define public and private global data-types, constants and static variables in a PL/SQL package.[3] PL/SQL also allows for the definition of classes and instantiating these as objects in PL/SQL code. This resembles usage in object-oriented programming languages like Object Pascal, C++ and Java. PL/SQL refers to a class as an "Abstract Data Type" (ADT) or "User Defined Type" (UDT), and defines it as an Oracle SQL data-type as opposed to a PL/SQL user-defined type, allowing its use in both the Oracle SQL Engine and the Oracle PL/SQL engine. The constructor and methods of an Abstract Data Type are written in PL/SQL. The resulting Abstract Data Type can operate as an object class in PL/SQL. Such objects can also persist as column values in Oracle database tables. PL/SQL is fundamentally distinct from Transact-SQL, despite superficial similarities. Porting code from one to the other usually involves non-trivial work, not only due to the differences in the feature sets of the two languages,[4] but also due to the very significant differences in the way Oracle and SQL Server deal with concurrency and locking. There are software tools available that claim to facilitate porting including Oracle Translation Scratch Editor,[5] CEITON MSSQL/Oracle Compiler [6] and SwisSQL.[7] The StepSqlite product is a PL/SQL compiler for the popular small database SQLite. PL/SQL Program Unit A PL/SQL program unit is one of the following: PL/SQL anonymous block, procedure, function, package specification, package body, trigger, type specification, type body, library. Program units are the PL/SQL source code that is compiled, developed and ultimately executed on the database. The basic unit of a PL/SQL source program is the block, which groups together related declarations and statements. A PL/SQL block is defined by the keywords DECLARE, BEGIN, EXCEPTION, and END. These keywords divide the block into a declarative part, an executable part, and an exception-handling part. The declaration section is optional and may be used to define and initialize constants and variables. If a variable is not initialized then it defaults to NULL value. The optional exception-handling part is used to handle run time errors. Only the executable part is required. A block can have a label. Package Packages are groups of conceptually linked functions, procedures, variables, PL/SQL table and record TYPE statements, constants, cursors etc. The use of packages promotes re-use of code. Packages are composed of the package specification and an optional package body. The specification is the interface to the application; it declares the types, variables, constants, exceptions, cursors, and subprograms available. The body fully defines cursors and subprograms, and so implements the specification. Two advantages of packages are: Modular approach, encapsulation/hiding of business logic, security, performance improvement, re-usability. They support object-oriented programming features like function overloading and encapsulation. Using package variables one can declare session level (scoped) variables, since variables declared in the package specification have a session scope.
Views: 64262 radhikaravikumar
Difference Between Delete and Truncate
 
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Below is link for Useful Pl/SQL Books http://goo.gl/XMy0tt ---------------------------------------------------------- Difference Between Delete and Truncate in Detail On bigger picture they serve the same purpose but there are many Differences listed with examples Point Delete Truncate 1. Data Recovery Delete: Come under the DML Category, we need to commit or Rollback explicitly to make the changes permanent, so we can recover the data by Rollback command fully with in a session or up to a point if Save Points are used Fall In DDL Category (DDL Command issue the Auto commit implicitly) so no chances of Recovery even not using the Flashback table method. But Truncate operations are also logged , they didn’t generate redo SQL but they are logged , view for truncated data info V$LOGMNR_CONTENTS 2. Data Removal Delete Can remove all or selected data using the Where Clause predicates. Or we can say delete any subset of rows We can Truncate complete table or a partition or sub partition of a table. 3. Speed Delete is Slower because oracle maintain the redo logs for Read Consistency (so that every session connected can see a consistent data at a given point of time ) Delete is very time consuming activity especially when table have numerous indexes and Triggers associated with table Faster as no data logs are maintained no associated trigger firing. 4. DML Triggers Firing DML (Delete) triggers associated with table will fire. DML Trigger will not fire in case of truncate method. 5. Flashback Technology Data can be recovered even after commit operation using Flashback Table options Flashback_transaction_query table will give what to recover and up to which point. Data cannot be recovered in truncate method by Flashback table option. 6. Referential Integrity Constraint Behavior if we don’t have related data in child table then we can delete the data from the parent table or we have variants like On Delete Cascade & on Delete set Null. We can’t truncate a table with enable Referential Integrity Constraint, even there is no data in the child table, we have to disable or drop the constraint if we want to truncate the table. Exception: Truncate is possible if the FK is self-referential means primary key and foreign key are on the same table. 7. Space De allocation or Space Utilization No extent reset with delete when deleting rows from a table, extents are not de allocated, So if there were 50 extents in the table before the deletion, there will still be 50 after the deletion. Truncate: When a table is truncated it will free the space allocated except in case of reuse storage clause. This space can subsequently be used only by new data in the table or cluster resulting from insert or update operations .All extents are de allocated leaving only the extents specified when the table was originally created .Example So if the table was originally created with min extents 3, there will be 3 extents remaining when the tables is truncated. When you truncate a table, NEXT is automatically reset to the last extent deleted. 8. High Water Mark Delete will not reset the high water mark Truncate will reset the High Water mark which is very important for performance point of view as in case of full table scan and full index scan oracle will read all the block under high water mark this makes a lot of difference in terms of performance. 9. Cluster No as such restriction with delete. You cannot individually truncate a table that is part of a cluster. You must truncate the cluster, Delete all rows from the table, or drop and re-create the table. 10. Information Capturing Delete : we can capture the row information what we have deleted using Delete Method, f you are deleting multiple records then use composite data types (collections & records) Truncate Don’t have this feature of capturing the deleted records. 11. Function Based Index Impact DELETE You cannot delete rows from a table if a function-based index on the table has become invalid. You must first validate the function-based index. Truncate: No as such restriction 12. UNUSABLE Indexes Delete no as such feature. Truncate if table is not empty then truncate make all unusable indexes to useable. 13. Complex views You cannot delete data from a Complex view except through INSTEAD OF triggers. But we can delete data from simple Views and MV. We cannot truncate a view simple or complex but you can truncate MV with special Features like Preserve MV Logs and Purge MV Logs. 14. Privileges Delete You need to provide delete table privilege on object. Truncate you must have drop table privilege there is no truncate table privilege exists. 15. Domain Index No as such restriction You cannot truncate the object having domain index in invalid or In progress state
Views: 13091 Ram Gupta
SQL   Delete data from the table ( Delete ,Truncate & Drop)
 
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SQL - Oracle ------------ Delete: without specifying a WHERE clause. deletes all rows of a table. - DELETE with a WHERE clause to remove only selected rows delete row with customer_id=6 when deleted a row using DELETE before commiting we can rollback. Truncate: - to delete complete data from an existing table. - rollback is not possible customer_id is being referrenced in the loan_request table before truncating this table we need to remove the reference - same incase of drop table DROP TABLE command to delete complete table but it would remove complete table structure form the database
Views: 50 Data Disc
Oracle tutorial : Recover deleted rows in Oracle PL SQL using flashback
 
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Oracle tutorial : Recover deleted rows in Oracle using flashback oracle tutorial for beginners oracle recover deleted rows In this video, we have used as of timestamp concept of oracle. Example : select * from table as of timestamp(systimestamp-interval '1'minute ) Subscribe on youtube: https://www.youtube.com/channel/UCpiyAesWNYOXSz5GPq8lbkA For more tutorial please visit #techquerypond https://techquerypond.com https://techquerypond.wordpress.com https://twitter.com/techquerypond sql in recovery recover deleted rows
Views: 1647 Tech Query Pond
ServiceNow - Rollback and delete recovery
 
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A new feature in London which makes it a lot easier to handle code ran in script background or deleted records. URL for the documentation: https://docs.servicenow.com/bundle/london-platform-administration/page/administer/table-administration/concept/rollback-delete-recovery.html
Views: 729 Göran Lundqvist
Sql deleted rows recovery
 
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How to recovery deleted rows in Sql server (www.tomsqlrecovery.com)
Views: 204 tom zhang
How to recover deleted data in SQL Server
 
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You can find the detail at http://raresql.com/2011/10/22/how-to-recover-deleted-data-from-sql-sever/
Views: 39318 Muhammad Imran
How to recover dropped table using flashback
 
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In this video i'm going to show you how to recovery dropped table using flashback step by step. #recover #dropped #table #flashback
Views: 3679 OCP Technology
4.ORACLE WORLD - How to Recover drop table from Recyclebin using Flashback in oracle database
 
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Hello guys in this demo I'm just showing to you that we can easily recover the dropped table from recyclebin in oracle using flashback technology very fast without shutdown the database... #performingflashback #recoveryofdroptablefromrecyclebin #oracledatabase By lalit saini
Views: 4920 Oracle World
How to recover truncated table without backup in oracle
 
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TRY PRM For Oracle Database , FULL GUI supported, easy to use, written in Java cross platform . PRM can help user recover data from truncated table or corrupted database!
Restore table from recyclebin in oracle 11g
 
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Restore table from recyclebin in oracle 11g
Views: 451 Education Online
How to recover a dropped table in oracle?
 
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This is a free tutorial video on how to use the FLASHBACK TABLE query to restore a dropped table in oracle, and we have given some useful information on PURGE, RECYCLEBIN and shown some demo on how to restore a dropped table in oracle.
Views: 2091 Kishan Mashru
Oracle SQL PLSQL 12C Tutorial 13 - DELETE Statement
 
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This Video Tutorial Will Describe how to delete a row or delete data which is already inserted into the table in oracle 12C version. This command will also work on other versions of database like Oracle 11g Database, Oracle 10g Database, Oracle 9i Database, Oracle 8i Database, Oracle 8 Database and so on. Sometimes you delete to delete some unwanted rows or data from the table. Delete command is used to do that. But it does not permanently delete rows, you can restore or rollback the deleted rows before commit. Full Syntax will be given in this video tutorial about how to insert records in oracle database table. Along with the live example to delete rows from the table. All the keywords, format, mandatory clauses etc are described in this video.
2. An exception raised does not automatically roll back uncommitted changes to tables.
 
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Any non-query DML statements that complete successfully in your session are not rolled back when an exception occurs - either directly in PL/SQL or propagated out from the SQL engine. You still have the option of either committing or rolling back yourself. If, however, the exception goes unhandled out to the host environment, a rollback almost always occurs (this is performed by the host environment). Related blog post: http://stevenfeuersteinonplsql.blogspot.com/2016/03/nine-good-to-knows-about-plsql-error.html ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
DISTINCT Clause & UNIQUE Keyword in Oracle | Oracle Tutorials for Beginners
 
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DISTINCT & UNIQUE Keyword in Oracle | Oracle Tutorials for Beginners DISTINCT Keyword in Oracle DISTINCT Clause in Oracle UNIQUE Keyword in Oracle UNIQUE Clause in Oracle Oracle Tutorials for Beginners Oracle Tutorials for Beginners select distinct * sql distinct multiple columns sql distinct count select distinct on one column with multiple columns returned select distinct mysql sql count distinct multiple columns oracle distinct count sql distinct group by sql count distinct two columns select distinct on one column with multiple columns returned select distinct on one column with multiple columns returned oracle sql select unique values from multiple columns select distinct multiple columns mysql select distinct all columns sql count distinct multiple columns group by sql select distinct multiple columns group by select distinct oracle select distinct rows sql select distinct multiple columns select distinct on one column select count distinct select unique mysql how to select unique records in oracle without using distinct sql select distinct values and count of each Oracle Tutorials for Beginners Oracle Tutorials for Beginners Oracle Tutorials for Beginners Oracle Tutorials for Beginners
Views: 525 Oracle PL/SQL World
Oracle ADF Delete Dialog ( YES / NO )
 
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How to use delete dialog in Oracle ADF
Views: 462 Azza Shoukr
Recover Deleted Data in SQL Server
 
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#SQLServer #SysTools #DigitalForensics Recover deleted data in SQL Server using SQL Log Recovery tool Watch how SQL Log recovery tool instantly recovers deleted data in SQL Server 2014 database and prevent data loss from accidental delete. SysTools SQL Log Analyzer: http://sys.tools/@sql-log-analyzer
Views: 3032 SysTools Software
Transactions in SQL
 
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Follow this tutorial to learn how to use Transactions in SQL and see how we can roll back to previous changes done in database. 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+ A transaction in SQL is basically the process of one or more changes being made in the database. In this tutorial we will learn the three basic controls of transactions in SQL which are COMMIT, ROLLBACK, and SAVEPOINT Step 1- Commit Command The Commit command is used to save the changes made in the database. To see its implementation, start by first beginning the transaction. Before starting any Transaction in SQL, we have to write the Begin Transaction statement. After that, write the actual action which is required, for example delete from the employee table, where the salary is greater than $2500. After that, write the Commit keyword which confirms that the query is logically correct and can be executed. The Query in this case would be: begin trandelete from EMP where SAL 2500 commit Now when we run the query, a message appears below the Query Editor which shows the number of rows that have been affected by our query. Step 2- Effect of Commit Command After that, fetch all the records from the employee table and it can be seen that all the records which have a salary above $2500 have been deleted. Step 3- Save Points Now let's examine the SAVE POINT command. To understand the concept, we will take an example of a departmental table. Start writing the query by beginning a transaction and then entering in the "Save Transaction" command followed by the transaction name. After that, let's delete a record with the Department number as 10 and then again save the transaction. This time, define the save point as point2. With that done, delete another department, and save the transaction, defining it as point3. Actual Query would be like this: begin tran save tran point1 delete from DEPT where DEPTNO=10 save tran point2 delete from DEPT where DEPTNO=20 save tran point3 After executing it, 2 rows would get affected. Step 4- Departments Deleted Now, see the department table to view the changes. For that, let's fetch all the records from the table. It can be seen that department "10" and "20" has been deleted from the table. Step 5- Roll Back If we want to track back to the previous changes, we can use the save points created earlier along with the Rollback transaction command. The rollback transaction allows us to remove all the modifications made to the data, either from the start of the transaction or to a defined save point. For that, we will use the rollback transaction statement and define the save point after that. Over here, let's roll back to point number 2. The Query would be: rollback tran point2 select * from DEPT Once we execute the query, and fetch all the records from the table, it can be seen that the table now contains the data up till point number 2 in the query. And this is how we can use Transactions in SQL.
Oracle Tutorial - Update Statement
 
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Oracle Tutorials for beginners - Update Statement
Views: 49 Tech Acad
Insert and Commit: Databases for Developers #7
 
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You load data into your database tables with an insert statement. In this episode Chris discusses how to use single and multirow inserts and their pros and cons. He also covers how to persist your changes to the database with commit. See the full syntax for insert in the SQL reference guide: http://docs.oracle.com/database/122/SQLRF/INSERT.htm#SQLRF01604 Take the Databases for Developers FREE SQL course at https://devgym.oracle.com/devgym/database-for-developers.html Need help with SQL? Ask us over on AskTOM: https://asktom.oracle.com Twitter: https://twitter.com/ChrisRSaxon Daily SQL Twitter tips: https://twitter.com/SQLDaily All Things SQL blog: https://blogs.oracle.com/sql/ ============================ The Magic of SQL with Chris Saxon Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 5476 The Magic of SQL
How to Remove duplicates from Table using SQL query(Oracle) (rowid)
 
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How to Remove duplicates from Table using SQL query(Oracle) (rowid).. SQL Analysis
Views: 6566 vishwanth suraparaju
#3 DROP & DELETE DATABASE OR TABLE DIFFERENCE BETWEEN DROP & DELETE
 
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ROLE OF DELETE & DROP KEYWORD IN SQL/MYSQL/ACCESS difference between delete and truncate in sql server,sql,delete,sql tutorial,difference between drop and truncate in mysql,difference between delete and truncate,sql server,sql (programming language),drop,difference between delete & truncate,difference between truncate and delete,difference between delete truncate and drop in sql server 2012,sql tutorial for beginners,difference between delete and truncate in sql server 2008,difference between delete and truncate in sql server with example sql,delete,sql server,sql (programming language),drop,sql tutorial,sql delete,drop table in oracle sql,drop table in sql server,creating tables in sql,sql drop,drop table sql,delete vs trucate vs drop in sql,microsoft sql server,delete records in sql,delete table in sql server,how to delete database in sql server,drop in sql,delete vs drop,sql delete & drop TRUNCATE TRUNCATE is a DDL command TRUNCATE is executed using a table lock and whole table is locked for remove all records. We cannot use Where clause with TRUNCATE. TRUNCATE removes all rows from a table. Minimal logging in transaction log, so it is performance wise faster. TRUNCATE TABLE removes the data by deallocating the data pages used to store the table data and records only the page deallocations in the transaction log. Identify column is reset to its seed value if table contains any identity column. To use Truncate on a table you need at least ALTER permission on the table. Truncate uses the less transaction space than Delete statement. Truncate cannot be used with indexed views. DELETE DELETE is a DML command. DELETE is executed using a row lock, each row in the table is locked for deletion. We can use where clause with DELETE to filter & delete specific records. The DELETE command is used to remove rows from a table based on WHERE condition. It maintain the log, so it slower than TRUNCATE. The DELETE statement removes rows one at a time and records an entry in the transaction log for each deleted row. Identity of column keep DELETE retain the identity. To use Delete you need DELETE permission on the table. Delete uses the more transaction space than Truncate statement. Delete can be used with indexed views. DROP The DROP command removes a table from the database. All the tables' rows, indexes and privileges will also be removed. No DML triggers will be fired. The operation cannot be rolled back. DROP and TRUNCATE are DDL commands, whereas DELETE is a DML command. DELETE operations can be rolled back (undone), while DROP and TRUNCATE operations cannot be rolled back. #HindiTutorial #DilipSir #askDilipSir #Youtuber #YouTube #you_tuber #Dilip #sir #india #tech #technology #videos #best #tutorial #how #know_how #CSharp #Excel #Word #HTML #CSS #ComputerTips_Tricks #ASP.net #WinFormApp #HowtoFix #VisualStudio #MSPowerPoint #OutLook #SQL #Hindi #Urdu #SocialTech #Facebook #GamePlays #gameplay #game_play #playGame #CallofDuty #CsharpinHindi #HTML5 #Advance_Excel #IA, #RRB, #IBPS, #SSC, #UPPSC, #2nd Grade, #LDC, #POLICE, #COMPUTER, #RAILWAY, #ASSISTANT, #TEACHER
Views: 218 Dilip MJ Gangwar
How to commit in a trigger?
 
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This video is a free video tutorial on how to commit or rollback in a pl/sql trigger, it demonstrates the use of pragma autonomous_transaction and commit in a trigger, also it shows various scenarios which would lead to misleading data and exceptions that would be raised if pragma autonomous_transaction is not properly used in the trigger.
Views: 3192 Kishan Mashru
Rollback,Savepoint,Commit,Transaction IN ORACLE PART1
 
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PART1 1-ROLLBACK 2-SAVE POINT 3-ROLLBACK TO AN SAVE POINT 4-COMMIT 5-SET TRANSACTION PART2 6-GRANT 7-DEADLOCK .....BY YASSIR TAQATQA بواسطة ياسر طقاطقة
Views: 3462 Yassir Taqatqa
Delete, Drop, and Truncate Statements in Hive
 
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Delete, Drop, and Truncate Statements in Hive Delete Statement: Delete statement is used to delete certain rows from a table based on a condition specified using the WHERE clause. The syntax is in below as highlighted. DELETE FROM tablename [WHERE expression]; Note: DELETE statement is available from hive 0.14.0 version and above Drop Statement: The drop table statement is used to drop the table altogether. The syntax is highlighted here: DROP TABLE IF EXISTS TABLENAME; Let’s quickly see how the managed table and external table differs when dropping the table. We have already discussed this in the “Two different types of hive tables” video. Take a look at it if you haven’t. For the managed hive tables, the drop table statement removes the metadata information as well as the data. The data will be actually moved to .Trash/Current directory. metadata will be permanently deleted. However for external tables, only the metadata information is permanently deleted and the actual data remains intact in the hdfs directories. So in the case of external table, if the table was deleted accidentally, then the table can be re-created by using the same schema and specifying the same location for the hdfs data directory. If deleting the external table was the intention, then after deleting the table using the drop statement, you may also delete the underlying hdfs data directory by issuing the hdfs dfs -rm command. Truncate Statement: Truncate table statement is used to remove only the data from the table. The table structure with the schema remains intact. Truncate removes all the rows from a table or partition. The syntax is highlighted below. TRUNCATE table syntax TRUNCATE TABLE TABLENAME;
Views: 1372 BigDataElearning
Oracle Jdeveloper12c ADF - 3) Logical Delete
 
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1) View Criteria 2) Logical Delete http://parasshahjdeveloper12c.blogspot.in/2016/06/5-jdeveloper-12c-eo-entity-object-and.html
Views: 363 Paras Shah
7. Create Table in SQL (Hindi)
 
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Please Subscribe Channel Like, Share and Comment Visit : www.geekyshows.com
Views: 112547 Geeky Shows
How to use the auto commit feature in oracle database
 
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How to use the auto commit feature in oracle database ===================================================== show autocommit; set autocommit on; create table fruit(sno number); insert into fruit values(1); insert inot fruit values(2); how to rollback the uncommited transactions ========================================= rollback;
Views: 818 Praveen Biyyapu
Alter table in oracle in telugu
 
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#KOTHA_ABHISHEK http://htmlintelugu1.blogspot.com http://cssintelugu1.blogspot.com http://javascriptintelugu1.blogspot.com http://sqlintelugu1.blogspot.com http://javaintelugu1.blogspot.com
Views: 536 KOTHA ABHISHEK
IPGRAY : Sql Server - How to create stored procedure in Sql Server with commit and rollback
 
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IPGRAY : Sql Server - How to create stored procedure in Sql Server with commit and rollback statement This video shows How to create stored procedure in Sql Server with commit and rollback statement 1. Login to sql server management studio 2. choose data base you are going to work with 3. choose a table you are going to work with 4. In my case i am going to choose zipcode table i have 80000 records in there it is good to test with huge rows 5. create a backup table for the zipcode, in your case you choose the backup table of step 3, have scripts ready to create table 6. create store procedure 7. take the default layout sql server management studio give you than change it line by line 8. create a basic stored procedure template for the stored procedure with commit and roll back statement 9. add the business login - in this case we are going to insert the choosen table data to backup table 10. execute stored procedure 11. view results if you don't have sql server ......... watch IPGRAY video IPGRAY : SQL Server - How to download and install SQL Server Express in windows 10 if you don't have sql server management studio ......... watch IPGRAY video IPGRAY : SQL Server - How to download and install SQL Server Management Studio in Windows 10 how to create sql server user in sql server management studio ..... watch IPGRAY video IPGRAY : Sql Server - How to create user account in Sql Server Express 2017 IPGRAY : Sql Server - How to create new user, data base with new user and create table in SQL server thank you for watching IPGRAY video follow more IPGRAY videos on youtube please share, subscribe and comment
Views: 166 IPGRAY Inc.
C# - WPF - Insert Update Delete and View Data from Oracle Database Part 1/2 [with Source Code]
 
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Download link: https://goo.gl/Axoeja part 2/2 : https://youtu.be/NiGsgctfiYM C# - Oracle - How To Connect C# with Oracle Using ODAC - ODP.NET: https://youtu.be/cP6UatAZ76s
Views: 19150 Safaa Al-Hayali
What is the difference between Truncate,Delete and Drop with Example in MSSQL server
 
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In this video, I have just tried to tell you difference between Truncate,Delete and Drop in MSSQL server.So these all command are used for deleting some records or table.So let's seeing those all differences here. TRUNCATE TRUNCATE is a DDL command TRUNCATE is executed using a table lock and whole table is locked for remove all records. We cannot use Where clause with TRUNCATE. TRUNCATE removes all rows from a table. Minimal logging in transaction log, so it is performance wise faster. TRUNCATE TABLE removes the data by deallocating the data pages used to store the table data and records only the page deallocations in the transaction log. Identify column is reset to its seed value if table contains any identity column. To use Truncate on a table you need at least ALTER permission on the table. Truncate uses the less transaction space than Delete statement. Truncate cannot be used with indexed views. DELETE DELETE is a DML command. DELETE is executed using a row lock, each row in the table is locked for deletion. We can use where clause with DELETE to filter & delete specific records. The DELETE command is used to remove rows from a table based on WHERE condition. It maintain the log, so it slower than TRUNCATE. The DELETE statement removes rows one at a time and records an entry in the transaction log for each deleted row. Identity of column keep DELETE retain the identity. To use Delete you need DELETE permission on the table. Delete uses the more transaction space than Truncate statement. Delete can be used with indexed views. The DROP command removes a table from the database. All the tables' rows, indexes and privileges will also be removed. No DML triggers will be fired. The operation cannot be rolled back. DROP and TRUNCATE are DDL commands, whereas DELETE is a DML command. DELETE operations can be rolled back (undone), while DROP and TRUNCATE operations cannot be rolled back. You can Follow me on Twitter, Facebook,LinkedIn, Instagram https://twitter.com/ErAmarsingh1991 https://www.facebook.com/TechVideosByAmarSingh https://www.linkedin.com/in/amar-singh-67313277/ https://www.instagram.com/er.amarsingh1991/
Commit y Rollback
 
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Views: 212 Packo Garcia
18-Oracle forms 11g – Transaction Processing اوراكل فورمز
 
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مرحبا بكم فى درس اليوممن دروس اوراكل فورمز نتحدث عن: Oracle forms - Transaction Processing Pre-commit Pre-delete Pre-insert Pre-update On-delete On-insert On-update Post-delete Post-insert Post-update Post-forms-commit Post –database-commit ......................................­.................... لو عندك اى سؤال خش على الجروب : https://www.facebook.com/groups/oracle.askgad ......................................­.................... لمتابعة كل ماهو جديد من خلال صفحتنا https://www.facebook.com/askgad
Views: 1213 Ask Gad
Use Update with rollback in SQL
 
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How to Use Update and rollback is available and easily learn from this video.
Views: 820 Techie Rajesh
Informatica: Separation of Duplicate & Non-Duplicate values
 
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In this tutorial, you'll learn how to separate duplicate and non-duplicate values to different target files from source file. Informatica PowerCenter, the flagship tool of Informatica works on basis of transformations which transform data in multiple ways. Types of transformations[edit] Active : One that can change the number of rows being output. Passive : One that cannot change the number of rows being output. Transformations examples[edit] Source qualifier - conversion of source datatypes to Informatica datatypes Expression - transforming data with functions Lookups - joining data with lookups Sorter & Aggregator - sorting and aggregating data Update Strategy expressions Transaction control - how to create transactions and control commits and rollbacks Java transformation - invoking Java methods, variables, third-party API's and built-in packages with Java transformation
Views: 6236 radhikaravikumar
Oracle Database: How-To: Insert values into a Table
 
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The Best Site to Learn SQL Online
Views: 33727 TechnicalSkills
Eliminar datos en C# | Oracle
 
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En este último video eliminaremos un registro dentro de una base de datos de Oracle, los procedimientos almacenados se descargan en el siguiente enlace: http://bit.ly/2nPIZgC No olviden suscribirse al canal.
Views: 457 Codingraph
Oracle Tutorial In Telugu DELETE and UPDATE commands Part 10
 
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Oracle Tutorial In Telugu,ms word 2007 tutorial in telugu,c language tutorial for beginners in telugu, excel 2007 tutorial in telugu, vlookup in excel 2007 with example in telugu,ms office 2007 tutorials in telugu,,ms access 2007 tutorial in telugu, tally erp 9 full tutorial in telugu,anu script telugu typing tutorial,photoshop in telugu,ms powerpoint 2007 tutorial in telugu, pagemaker tutorial in telugu,adobe photoshop tutorial in telugu, hardware and networking tutorials in telugu,excel tutorial in telugu,ms-excel 2007 tutorial in telugu, excel in telugu, telugu excel tutorial,adobe Photoshop in telugu,ms word 2007 in telugu , ms word 2007 tutorial in telugu, C basis in telugu, hardware in telugu, web designing in telugu,html in telugu, dreamweaver in telugu, c++ in telugu, java in telugu, autocad in telugu, computer tips in telugu, computer basics in telugu, hacking in telugu, computer tips in telugu -~-~~-~~~-~~-~- Please watch: "Best Useful software For Windows Telugu" https://www.youtube.com/watch?v=puGZTRTSoVA -~-~~-~~~-~~-~- #telugutechtuts #hafiztime
Views: 9611 Telugu TechTuts
Flashback database, Architecture, Configuring flashback Database, Monitoring Flashback database
 
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Performing flashback - Flashback database, Architecture, Configuring flashback Database, Monitoring Flashback database For Students of B.Tech, B.E, MCA, BCA, B.Sc., M.Sc., Courses - As Per IP University Syllabus and Other Engineering Courses
Oracle Interview question : what is dual table in oracle
 
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Oracle Interview question : what is dual table in oracle Oracle dual table is automatically created as part of installation in SYS schema. Dual table has one column called DUMMY of VARCHAR2(1) datatype. This table is useful for computing a constant expression with select statement List of all the SQL and PLSQL interview questions https://easy-learning-tech.blogspot.com/p/oracle-sql-plsql-interview-questions.html
Views: 392 Siva Academy
How to Drop Database by using T-SQL or GUI - SQL Server / T-SQL Tutorial Part 25
 
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How to Drop Database by using T-SQL or GUI - SQL Server / T-SQL Tutorial Link to post for scripts http://www.techbrothersit.com/2016/02/how-to-drop-database-by-using-tsql-and.html Scenario: You are working as Database developer in Health Insurance company, You need to generate script to drop database that can be used in different environments such as QA, UAT and Production. Solution: There are multiple ways to drop the database in SQL Server. You can use GUI part of SSMS to drop database. By using GUI: Right Click on the database that you would like to drop and then hit Delete. check the checkbox Close existing connections. This will close any existing connections, if you don't check this, the drop might fail if there are open connections to database. Use TSQL To Drop Database in SQL Server: At this point you can hit Script button in above window to generate script so you can use anytime you like. Once you hit Script and open in new window. Below Script will be create. USE [master] GO ALTER DATABASE [TechBrothersIT] SET SINGLE_USER WITH ROLLBACK IMMEDIATE GO USE [master] GO DROP DATABASE [TechBrothersIT] GO The first part of script will set the database to Single User mode and rollback any open transactions immediately. Second Part of script will drop the database. Check out our website for Different SQL Server, MSBI tutorials and interview questions such as SQL Server Reporting Services(SSRS) Tutorial SQL Server Integration Services(SSIS) Tutorial SQL Server DBA Tutorial SQL Server / TSQL Tutorial ( Beginner to Advance) http://www.techbrothersit.com/
Views: 2397 TechBrothersIT
027- Oracle SQL Arabic Course - DDL - Create table - اوراكل ديفلوبر
 
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1- create table. 2- Data types .......................................­.................... تواصل معانا علي الفيس بوك من هنا : https://www.facebook.com/askgad .......................................­.................... تواصل معانا علي موقعنا من هنا : https://www.askgad.com
Views: 1532 Ask Gad
UNDO In oracle
 
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Views: 245 Sainora Annanagar
026 - Oracle SQL Arabic Course - DCL -Commit - Rollback  اوراكل ديفلوبر
 
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أهلا بكم فى درس جديد من سلسلة دروس أوراكل ديفلوبر شرح SQL فى درس اليوم نتحدث عن Data Control Language Commit - Save point - Rollback - For Update .......................................­.................... تواصل معانا علي الفيس بوك من هنا : https://www.facebook.com/askgad .......................................­.................... تواصل معانا علي موقعنا من هنا : https://www.askgad.com
Views: 1963 Ask Gad

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