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Oracle SQL Tutorial 25 - ASCII and Unicode
 
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In the previous video we talked about some of the most popular data types. We are going to discuss them in more detail. The data type we are going to start with is CHAR and NCHAR. I told you of both of these but I never explained the difference. That's because there is some other stuff I need to explain before I can explain the difference. This has to deal with what is known as character sets. When you have a string, there are only so many characters you are allowed to store in that string. The characters you are allowed to store is determined by what is known as the character set. A common character set is ASCII. This character set allows you to store English characters, numbers, and some symbols. ASCII started with 127 characters, and then they came out with the ASCII extended, which allows for up to 255 characters. Even with 255 characters though, we are limited in what we can store using one character set. If the computer only allows ASCII, we are going to be limited when working with different languages. Of course it works for some situations, but globalization of software has been a big thing with the development of the interwebs …and the movement towards a new world order (Revelation 13:7). That means that ASCII is no longer the best character set. It has largely been replaced with a character set known as Unicode. Oracle has a few Unicode character sets that we can use when we work with string data. When you start studying character sets, I can promise that you will run across the word encoding. Encoding refers to the way that the allowed characters can be stored on the computer. A computer doesn't just store a letter, everything has to be stored in binary. Unicode is the character set, but it has numerous different encodings. Essentially, the computer can store the same characters in multiple different ways, depending on which encoding is used. The most popular encodings for Unicode are UTF-8 and UTF-16. UTF stands for Unicode Transformation Format. In the next video we will be discussing these in detail and express their differences. Once we got that down, we'll be able to loop back around to data types. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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: 4907 Caleb Curry
ASCII Function in SQL Query with Example
 
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ASCII(): ASCII function returns the NUMBER code that represents the specified character. Sytax: ASCII( single_character ) PARAMETERS: single_character is the specified character to retrieve the NUMBER code for. If more than one character is entered, the ASCII function will return the value for the first character and ignore all of the characters after the first. Let's look at some Oracle ASCII function examples and explore how you would use the ASCII function in Oracle/PLSQL. For example: ASCII('C') would return 67 ASCII('T') would return 84 ASCII('T2') would also return 84 Thanks for watching...:)
Views: 1189 WingsOfTechnology
Oracle SQL Tutorial 30 - UTF-8 and UTF-16 Character Sets
 
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A few videos ago we discussed UTF-8 and UTF-16 encoding, but when we are working with a database we do not worry about encodings as much as we do character sets. That's because a specific character set is going to have a specific encoding. The reason I am making this video is to introduce you to the most common character sets and to teach you the differences. That’s because as we go into the national character sets we need to understand the information taught in this video. So the first character set I am going to teach you about is AL32UTF8. AL32UTF8 is a character set that uses the uff-8 encoding and each character can take up to 4 bytes with the utf-8 encoding. There is another character set (not encoding) called utf8 (no hyphen) which is also encoded with UTF-8. This can be a little confusing because UTF8 is the name of an encoding and a character set, but bear with me. Both of these character sets are UTF-8 encoded, but UTF8 uses an older version of UTF-8 encoding. Generally, they work about the same, but the way certain characters are stored is slightly different, specifically way certain characters are stored is slightly different, specifically what are known as supplementary characters, which take up 4 bytes. The max size for a UTF8 character set is 3 bytes, as they do not directly support the supplementary characters as 4 bytes but instead store them across 2 groups of 3 bytes each. Oracle recommends that you use AL32UTF8 for all future development instead of the archaic UTF8 character set. There is another character set that you should know about, and that is AL16UTF16, which uses the UTF-16 encoding. Watch my video over UTF-8 and UTF-16 to learn more about UTF-16. Lastly, there is a character set known as UTFE, which uses an encoding known as UTF-EBCDIC. This is like a super archaic character set, and I'm not even going to talk about it. I thought I would at least mention it as it is going to come up a bit in the next video's topic. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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: 5884 Caleb Curry
How to Find ASCII Value of a Character in Java
 
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Views: 61 T3SO Tutorials
Oracle SQL Tutorial 26 - UTF-8 and UTF-16
 
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UTF-8 and UTF-16 are different encodings for the Unicode character set. Let's discuss UTF-8 first. UTF-8 is what is known as a variable-length character set. This means that the amount of storage a character takes up depends on what character it is. For example, if we store the character A, it will only take up one byte. In fact, ASCII is a subset of UTF-8. That means UTF-8 encoding can work with ASCII data. If you are new to computer storage, a byte is a very small amount of information. The smallest thing a computer can store is a bit. 1 or 0. On or off. There are 8 bits in a byte, 1024 bytes in a kilobyte, 1024 kilobytes in a megabyte, 1024 megabytes in a gigabyte, and 1024 gigabytes in a terabyte, and 1024 terabytes in a petabyte. Considering it is completely possible for a database to be multiple petabytes, you can understand that a byte is very small. If you store a non-English character, the size of UTF-8 will increase to 2, 3, or 4 bytes. If you think back to when we used the VARCHAR data type, we passed in 50 CHAR. The reason we throw in that CHAR is that the default for Oracle is 50 characters. Now you can understand why adding the CHAR might be important. If a character can take up multiple bytes, you cannot guarantee 50 characters. Now, on to UTF-16. UTF-16 is also a variable length encoding, but it differs in that It is either 2 or 4 bytes. That means to store an A, it now takes two bytes rather than one. Even though a byte is so small, when you are storing billions of characters, an unnecessary byte really adds up to a lot of wasted storage. We can only represent so many characters with 2 bytes. When we run out of options, we move to four bytes to allow for other characters. Which do we use? It often depends on what platform you are on and also what languages you are working with. For example, if you are working with Asian language, UTF-16 stores each character in 2 bytes while UTF-8 stores each character in 3 bytes. So you could save space by using UTF-16. Additionally, UTF-16 works better when you are writing code in Java or something from Microsoft .NET because UTF-16, or a subset of it called UCS-2, is widely adopted. Other than that, UTF-8 will be the one you want. Now that we have built a pretty good foundation of character sets, we can now continue our discussion of data types. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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: 6358 Caleb Curry
ascii,instr | sql functions | oracle database 11g version 2 |
 
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executed in oracle database 11g version 2
Views: 101 Education 4u
CHANGING THE CHARACTER SET TO AL32UTF8
 
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By using these steps you can change the oracle database character set to AL32UTF8
Views: 27869 venkatesh sankala
CHR Function in SQL Query with Example
 
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CHR(): The Oracle/PLSQL CHR function is the opposite of the ascii function. It returns the character based on the NUMBER code. Syntax: CHR( number_code ) Here number_code is the NUMBER code used to retrieve the character. Example: Let's look at some Oracle CHR function examples and explore how you would use the CHR function in Oracle/PLSQL. CHR(116) would return 't' CHR(84) would return 'T' Thanks for watching...:)
Views: 854 WingsOfTechnology
MYSQL Console Tutorial #17 Using the ASCII function in MYSQL
 
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In the seventeenth part for the MYSQL console tutorial series you will learn how to use the ASCII function in a MYSQL query. Full MYSQL course with no adverts Skillshare: http://skl.sh/2zp5cnv This MYSQL tutorial covers 3 examples: - What the ASCII Function does - Explanation of the leftmost character in a string - The different returned values ASCII returns if the provided value is a empty string or NULL MYSQL study Books - MYSQL Cook Book http://amzn.to/2sqJcVS - Learning PHP, MySQL & JavaScript: With jQuery, CSS & HTML5 http://amzn.to/2sq5Lu4 - MySQL (Developer's Library) http://amzn.to/2sH9CqK ======== MY COURSES AND BOOKS ======== Docker in Motion: http://bit.ly/2vvz2sA Skillshare courses: http://skl.sh/2gI33M5 Udemy courses: http://bit.ly/2iGhvIE ======== SUPPORT THE CHANNEL ======== Become a Patron: http://bit.ly/2hmVKwX Donate: https://www.paypal.me/howToCodeWell Support the stream: https://streamlabs.com/howtocodewell Help translate the videos: http://bit.ly/2iEyxXB ======== SUBSCRIBE TO THE NEWSLETTER ======== http://bit.ly/2fPlG3v ======== FOLLOW ME ======== Blog: http://peterfisher.me.uk Facebook: http://facebook.com/howtocodewell/ Instagram: http://instagram.com/howtocodewell/ Twitter: http://twitter.com/howToCodeWell Pintrest: http://pinterest.co.uk/howtocodewell/ Twitch: http://twitch.tv/howtocodewell ======== MY TALKS ======== How to put your Docker image on a diet: http://bit.ly/2y5KMly ======== RECOMMENDED PROGRAMMING RESOURCES ======== Managed website hosting from Cloudways: http://bit.ly/2CKb79b Programming courses and books from Manning Publications: http://bit.ly/2BIrExp #mysql #learnToCode #howToCodeWell
Views: 211 Peter Fisher
ꘒ0003 Unicode Symbols Single byte and Multibyte Oracle Databases
 
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 🐧 僠 僰 ♠ ♣ ♥ ♦ ⓭ ⧨
Views: 211 Geraldo Viana
Java chars are not characters, but UTF-16 code units. Palindromes with surrogate pairs are fun!
 
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https://docs.oracle.com/javase/8/docs/api/java/lang/Character.html#unicode https://www.joelonsoftware.com/2003/10/08/the-absolute-minimum-every-software-developer-absolutely-positively-must-know-about-unicode-and-character-sets-no-excuses
Views: 129 Fred Overflow
4 Unicode and N character in SQL Server
 
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with Arabic content by easy way to learn شرح بالعربي
MySQL Tutorial 30 - How to Set Character Sets and Collations
 
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HELP 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: 21878 Caleb Curry
Oracle SQL Tutorial 24 - Important Data Types
 
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In the upcoming videos we are going to discuss data types in depth, but I don't want to drown you in all of the details. Because of that, I'm giving you this video which is going to introduce you to the most important data types. Then, in the upcoming videos, I'll describe them in more depth. One of the data types we've already discussed in this video is NUMBER. This data type is used to, obviously, store a number. It can be used to store integers (whole numbers), or numbers with decimals. There are two other numeric data types you should know of. BINARY_FLOAT and BINARY_DOUBLE are both numeric data types that are known as floating point numbers. A floating point number is often used for large numbers that have decimal places where it is acceptable to not be completely precise. What I mean by this is that these numbers can only store numbers correctly up to a certain decimal point. If you need perfect precision, you will want to use the NUMBER data type. Now storing numbers is good sometimes, but occasionally you will want to store string data. String data can be any sequence of characters, including numbers. By telling the database that a column is a string data type, the database knows how to treat that column. There are four important string data types that you need to know about. The first two are CHAR and NCHAR. These data types are used to store a fixed-length string. So for example, you can say you want to store 12 characters. This means that every value for this column will be exactly 12 characters. If you insert less than 12 characters, the data will be padded with spaces. This means you will want to use one of these data types when every value in the column is the same length. What is the difference between CHAR and NCHAR? CHAR uses what is known as ASCII while NCHAR uses Unicode. The difference is what characters are allowed and how much space each character takes. ASCII takes up less space but only supports English, numbers, and some symbols. UNICODE allows you to store characters from multiple languages but takes up more space. Those were both fixed-length string. What if you want to store data that changes in length? That is where VARCHAR2 and NVARCHAR2 come in. When it comes to storing dates, the data types that are most important are DATE and TIMESTAMP. Date can be used to store dates and time. Timestamp is a data type that can be used to store an exact moment in time. Lastly, there are interval types. These store a date range. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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: 5486 Caleb Curry
01 - Character Conversion - Codepage encoding to UCS2 or UTF16
 
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We learn how to convert Windows codepage encoding to UCS2 (or UTF 16) and vice versa, or const char* to const wchar_t* and vice versa. We will learn Reference videos: How to convert string to wstring and wstring to string - how to deal with asian language in C++ https://goo.gl/wsZe9d SDL Safe String Conversion - string to wstring, wstring to string https://goo.gl/FnBAbm string - wstring, char* - wchar_t* 변환 및 한글 처리 방법 https://goo.gl/3My4XH We will be using: GetSystemDefaultLocaleName function: https://goo.gl/WLLSG3 setlocale, _wsetlocale https://goo.gl/1A2Hh4 WideCharToMultiByte function https://goo.gl/acoQBt MultiByteToWideChar function https://goo.gl/upmy99 1. How to set default locale 2. How to convert Windows codepage to UCS2 (or UTF16) 3. How to convert UCS2 to Windows codepage 4. How to convert UCS2 to UTF8 5. How to convert UTF8 to UCS2 **6**. How to convert Windows codepage to UTF8 **7**. How to convert UTF8 to Windows codepage In the next session, we will learn how to implement Spell checker using Hunspell library Download source code: http://www.TalkPlayFun.com/bison_flex/Codepage2UTF8ConversionSolution.zip
Views: 62 Kim Thomas
JavaScript Unicode Characters and Escape Sequences
 
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How to use Unicode characters and escape sequences in JavaScript. String.fromCharCode( ) and str.charCodeAt( ) are also discussed. Code GIST: https://gist.github.com/prof3ssorSt3v3/68d0f348cf378f31801efc2e51de8fec Unicode Reference: http://www.unicode.org/charts/
Views: 637 Steve Griffith
SQL ASCII Function - how to use ASCII function
 
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SQL ASCII function returns the NUMBER code that represents the specified character. It is the opposite of the CHAR function. visit Dose for excel Add-In website: http://www.zbrainsoft.com/ Visit our channel: https://www.youtube.com/channel/UCI4bMWYzrBTs47KINXL92Kw
How to Generate Random Alphanumeric in Java
 
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Generate Random Alphanumeric in Java. http://www.tutorialesje.com/
Views: 955 JE Tutoriales
SQL function ASCII() , Char() With example in Hindi Part 1
 
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In this video, We will learn system define function of string ASCII() and Char() in SQL.
SQL ASCII() Function
 
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The SQL ASCII() is a function, and return a number (ascii value) that represent of a given character from query result.
Views: 268 suresh babu
what is the use of literals in oracle database
 
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The terms literal and constant value are synonymous and refer to a fixed data value. For example, 'JACK', 'BLUE ISLAND', and '101' are all character literals; 5001 is a numeric literal. Character literals are enclosed in single quotation marks so that Oracle can distinguish them from schema object names. Oracle Database11g tutorials 6 | | How to use Concatenation operator, character String • How to use concatenation operator for combining the output of two or more columns and how to use literal character string This ... Literals in Oracle • Literal character string and duplicate rows Oracle SQL Tutorials Core Java with OCJP/SCJP: Language Fundamentals Part-4 || Literals Part-1 • 148K viewsOracle Database11g tutorials 6 | | How to use Concatenation operator, character String YouTube Oracle Database11g tutorials 6 | | How to use Concatenation operator, character String Oracle Database11g tutorials 7 | |SQL DISTINCT keyword || SQL tutorials Oracle Database11g tutorials 3 | | How to use Concatenation operator, literal character String Oracle Life How to use How to use Concatenation operator, literal character String,alternative quote(q) operator This SQL tutorial and Oracle ... Oracle11g SQL Tutorial 4 literal string & quote operator IT WORLD • This SQL tutorial for beginners will show you the using of literal string & quote operator If you want SQL certified you can use these ... 1.5 Literal Character Strings • Literal Character Strings. Literals in JAVA • Literals in JAVA.
Views: 86 Muo sigma classes
Introduction to UTF-8 and Unicode
 
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This video gives an introduction to UTF-8 and Unicode. It gives a detail description of UTF-8 and how to encode in UTF-8. This is a video presentation of the article "How about Unicode and UTF-8" which was published on www.gamedev.net. Writing an STL-Style UTF-8 String Class - http://squaredprogramming.blogspot.com/2013/12/writing-stl-style-utf-8-string-class.html How about Unicode and UTF-8 - http://www.gamedev.net/page/resources/_/technical/general-programming/how-about-unicode-and-utf-8-r3322 www.squaredprogramming.com
Views: 132114 Squared Programming
Standards: ASCII vs Unicode (Java)
 
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The video looks at the underpinnings of Java's character (char) data type. It looks at how ASCII was created and show how Unicode took its place as the standard.
Views: 9526 Nathan Schutz
Let's Learn SQL! Lesson 85 : Trimming Trailing Spaces and Characters
 
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Explore SQL with Tom Coffing of Coffing Data Warehousing! In this lesson, learn how to use the Trim Command to trim trailing spaces and characters!
SQL - Example using REPLACE
 
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Using REPLACE in SQL to remove characters or replace one character with another.
Views: 7526 JamesThomasChannel
String Functions in SQL Server part-I || ASCII, CHAR,CHARINDEX,CONCAT Function in SQL Server
 
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This video will provide you the details of each string functions in SQL Server 2014. I'll be walking through each and every kinds of build in function which are available in SQL Server in my next videos. ******************************************************************************************** ASCII (Transact-SQL) Returns the ASCII code value of the leftmost character of a character expression.  Syntax -- Syntax for SQL Server, Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse ASCII ( character_expression )  Arguments character_expression Is an expression of the type char or varchar.  Return Types int ******************************************************************************************** CHAR (Transact-SQL) Converts an int ASCII code to a character.  Syntax -- Syntax for SQL Server, Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse CHAR ( integer_expression )  Arguments integer_expression Is an integer from 0 through 255. NULL is returned if the integer expression is not in this range.  Return Types char(1) ******************************************************************************************** CHARINDEX (Transact-SQL) Searches an expression for another expression and returns its starting position if found.  Syntax -- Syntax for SQL Server, Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse CHARINDEX ( expressionToFind , expressionToSearch [ , start_location ] )  Arguments expressionToFind Is a character expression that contains the sequence to be found. expressionToFind is limited to 8000 characters. expressionToSearch Is a character expression to be searched. start_location Is an integer or bigint expression at which the search starts. If start_location is not specified, is a negative number, or is 0, the search starts at the beginning of expressionToSearch.  Return Types bigint if expressionToSearch is of the varchar(max), nvarchar(max), or varbinary(max) data types; otherwise, int. ******************************************************************************************** CONCAT (Transact-SQL) Returns a string that is the result of concatenating two or more string values.  Syntax -- Syntax for SQL Server, Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse CONCAT ( string_value1, string_value2 [, string_valueN ] )  Arguments string_value A string value to concatenate to the other values.  Return Types String, the length and type of which depend on the input.
Views: 142 Softtech forum
Text - Alphanumeric Only with QuickTapSurvey
 
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QuickTapSurvey - iPad, Tablet and SmartPhone Survey App & Software for Online or Offline Data Collection: https://www.quicktapsurvey.com/ QuickTapSurvey lets you create surveys for your iPad & Android tablets quickly and easily! It's packed with features and designed to make the survey experience easy, fast and engaging for your target audience. Alphanumeric lets the user enter letters and numbers without having to switch the keyboard! This reduces the total number of taps, restricts the entry of invalid characters and speeds up data entry significantly. Examples: What is your license plate number? What is your account id? Enter serial number
Views: 61297 QuickTapSurvey
ASCII and UNICODE explained
 
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brief description of character data representation
Views: 786 Sonny Dewhurst
Unicode-UTF-ASCII
 
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Learn Java
Views: 17588 spoddern
SQL CHAR Function - how to use CHAR Function
 
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SQL CHAR function is the opposite of the ASCII function. It returns the character based on the NUMBER code. visit Dose for excel Add-In website: http://www.zbrainsoft.com/ Visit our channel: https://www.youtube.com/channel/UCI4bMWYzrBTs47KINXL92Kw
Unicode and character encoding
 
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Internationalization and localization expert Adam Asnes of Lingoport discusses Unicode and character encoding in this video.
Views: 43538 Lingoport
Charsets Types: ASCII, ANSI, IOS-8859 and UTF-8/16 [HTML in Arabic #23]
 
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Charsets Types: ASCII, ANSI, IOS-8859, and UTF-8/16 To know what language and characters you like to know, you must know what types of char set can you use, but if you like the universal most chars, then you use -- meta charset="utf-8".
Views: 376 Salah Bedeiwi
Differences between Unicode and Non Unicode Datatypes | MSSQL Training
 
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** For Online Training Registration: https://goo.gl/r6kJbB ? Call: +91-8179191999 ? Visit Our Website for Classroom Training: https://nareshit.in/sql-server-training/ ? For Online Training: https://nareshit.com/course/sql-server-online-training/ #sqlserver #server #programming #course #Tutorials #Training #Videos -------------------------- ? About NareshIT: "Naresh IT is having 14+ years of experience in software training industry and the best Software Training Institute for online training, classroom training, weekend training, corporate training of Hadoop, Salesforce, AWS, DevOps, Spark, Data Science, Python, Tableau, RPA ,Java, C#.NET, ASP.NET, Oracle, Testing Tools, Silver light, Linq, SQL Server, Selenium, Android, iPhone, C Language, C++, PHP and Digital Marketing in USA,Hyderabad, Chennai and Vijayawada,Bangalore India which provides online training across all the locations -------------------------- ? Our Online Training Features: 1.Training with Real-Time Experts 2.Industry Specific Scenario’s 3.Flexible Timings 4.Soft Copy of Material 5. Share Videos of each and every session. -------------------------- Please write back to us at [email protected]/[email protected] or Call us at USA: +1404-232-9879 or India: +918179191999 ** Check The Below Links** ? For Course Reg: https://goo.gl/r6kJbB ? Subscribe to Our Channel: https://goo.gl/q9ozyG ? Circle us on G+: https://plus.google.com/NareshIT ? Like us on Facebook: https://www.facebook.com/NareshIT ? Follow us on Twitter: https://twitter.com/nareshitech ? Follow us on Linkedin: https://in.linkedin.com/company/naresh-i-technologies ? Follow us on Instagram: https://www.instagram.com/nareshitech/
Views: 9738 Naresh i Technologies
TO CHAR Function with Numbers: SQL Tutorial 44
 
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Please watch: "Install Oracle Database 12c Release 2 on Windows 10 Professional 64 bit" https://www.youtube.com/watch?v=5705VFJmku0 -~-~~-~~~-~~-~-
Views: 50 Solution Wizard
Oracle SQL Tutorial 15 - How to Add Primary Key Constraints
 
02:54
The goal of this video is to take the CREATE TABLE statement we have and walk through the different ways to create primary keys. This and foreign keys are the most common constraints, so we need to make sure that you have this one down. Once we have a more complex database design with multiple tables, we will learn the proper way to create foreign keys. For now, I am going to keep all of our constraints at the column level, unnamed. The only exception is the primary key, because that is what we are focusing on in this video. The first way to create the primary key is at the column level, unnamed. The primary key is very important because it what we use to distinguish rows from one another. Every table you create is going to need a primary key, and I suggest putting a lot of effort into making sure your keys are set up correctly and organized. --Delete the table if needed: DROP TABLE users; CREATE TABLE users( user_id NUMBER PRIMARY KEY, username VARCHAR2(50 CHAR) NOT NULL UNIQUE ) The next way is at the column level, but named: --Delete the table: DROP TABLE users; CREATE TABLE users( user_id NUMBER CONSTRAINT users_pk PRIMARY KEY, username VARCHAR2(50 CHAR)NOT NULL UNIQUE ) The general naming convention here is the table name followed by an underscore, followed by pk for primary key. Finally, the third way, which is at the table level, is the way we are going to create our primary key: --Delete the table: DROP TABLE users; CREATE TABLE users( user_id NUMBER, username VARCHAR2(50 CHAR) NOT NULL UNIQUE, CONSTRAINT users_pk PRIMARY KEY (user_id) ) Now, once you've created these constraints, you can use Oracle SQL Developer to find these constraints. Open your databases in the connections tab and find the table in the Tables folder. Double click your table and travel to the Constraints tab. You can tell here that the UNIQUE constraint still exists in this table, but it has a pretty disgusting name. It kind of wants to make me puke. Referencing that constraint in the future with that wacky name would be a burden. Engrave these three options in your head so that you can use any of them whenever you need and can read other peoples' code. Thank you for sticking with the series thus far. In the next video, we will be…doing something. See you then! :) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me on Patreon! 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: 12786 Caleb Curry
Characters in a computer - Unicode Tutorial (UTF-32 & UTF-16)(2/3)
 
14:20
This tutorial talks about some basic aspects of unicode using the examples of utf-32 and utf-16 encodings.
Views: 58080 dizauvi
Converting ASCII values to Characters Hindi
 
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ENG - This video explains steps for generating characters by pressing ASCII value in notepad. HINDI - यह वीडियो दिखाता है कि कैसे आप ASCII को character में परिवर्तित कर सकते हैं।
Views: 178 TamePass
ASCII Characters
 
00:43
Programmed in Mintoris.
Views: 40 Harold Hayes
Character Encodings (Jack)
 
12:09
When you're developing software in the U.S. for a predominantly American user base, it's easy to be complacent about character encodings, because most of what you're doing falls comfortably within the ASCII space. But, as soon as you want to allow your users to use foreign characters, or even standard latin characters with accents (contained, for example, in many Spanish words), you need to be aware of how to correctly use Unicode to store, retrieve, and display your users' data. This talk delves into a real-world example of how this can go wrong if you're not paying attention.
Views: 1064 thoughtbot
What is ASCII and How to Create Table of Complete ASCII Chars
 
02:50
CREATE ASCII TABLE IN EXCEL, KNOW ASCII, What is the Ascii code, What is an example of ascii, #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: 51 Dilip MJ Gangwar
What is unicode character set
 
03:31
This video explains the meaning of unicode character set and also points out the difference between unicode and ASCII
Views: 1075 Sagar S
Characters in a computer - Unicode Tutorial UTF-8 (3/3)
 
15:07
This tutorial explains the utf-8 way of representing characters in a computer; later generalizing (high level) how any kind of data can be represented in a computer.
Views: 39988 dizauvi
Génération d'une Table ASCII avec SQL Server
 
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▭▭▭▭▭▭▭▭▭▭▭ஜ۩۞۩ஜ▭▭▭▭▭▭▭▭▭▭▭▭ Dans cette vidéo je vous montre comment générer une table ASCII en SQL Server Mon Blog : http://easytutoriels.over-blog.com/ Mon Email : [email protected]
Views: 882 choupettte85
HTML5 Training Series (HTML 5) - Tutorial 3 - Character Set / Character Encoding
 
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http://zerotoprotraining.com This video provides the concept of character set or character encoding. You will learn of meta charset element of HTML5. You will learn why it is important to specify character set in your document. This video is part of the JavaScript training tutorials. All tutorial videos should be taken in sequence.
Views: 10810 HandsonERP
ASCII vs Unicode: New Media Technology EETVMD_1A by Aisling Kelleher
 
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This is a screen recording of a presentation on "ASCII vs Unicode", as part of an assignment.
Views: 383 aisling kelleher
Core Java Tutorials | Java Programming in Easy Steps | Why Java character occupies 2 bytes
 
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Core Java Tutorials | Java Programming in Easy Steps | Why Java character occupies 2 bytes This video explains clearly what is the difference between ASCII and UNICODE character system and why character occupies 2 bytes in java application.
Views: 671 Java tutorials Blog
How to convert string into base64 in c#
 
04:45
How to convert string into base64 in c#
Views: 614 santosh singh

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