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Oracle SQL, PL/SQL, Select Kullanımı ve Eğitimi 7 - select, chr, ascii, concat
 
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Oracle SQL, PL/SQL, Select Kullanımı ve Eğitimi 7 - select, chr, ascii, concat Oracle SQL, PL/SQL, Select Statement & Education 7 - select, chr, ascii, concat Beğendiyseniz Beğen Butonuna basmayı ve Abone olarak destek olmayı unutmayın.
Views: 174 Taner TOPCU
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: 6078 Caleb Curry
ascii,instr | sql functions | oracle database 11g version 2 |
 
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executed in oracle database 11g version 2
Views: 268 Education 4u
Oralce CHR Function
 
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https://www.databasestar.com/oracle-chr/ The Oracle CHR function allows users to provide a numeric code and return the ASCII character that matches the code. It’s the opposite of the ASCII function, which allows you to provide a character and return the code for that character. The syntax of the CHR function is: CHR(number_code [, USING NCHAR_CS]) The number code parameter is the code that you want to return the equivalent character for. The USING NCHAR_CS keyword means that the national character set will be used. More information on character sets can be found here: One common use of the CHR function is CHR(10). The number 10 is the line feed character, or “new line”, and is often used to start a new line of text. CHR(13) is also a common use, which is a carriage return. CHR(9) is a tab character. For more information on the Oracle CHR function, including the SQL used in this video, read the related article here: https://www.databasestar.com/oracle-chr/
Views: 129 Database Star
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.
Why is ASCII important?
 
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Why do we use ASCII, or more recently Unicode, as a middle man between the words we type and the 0s and 1s our computers record? Back in the late 60s there wasn't a standard way to encode the letter "A". As a result, each computer system encoded it in their own, often proprietary, way. This meant that computers couldn't talk to each other because they all spoke their own language. In an interconnected world that we live in, can you imagine trying to surf the web but only being able to read a quarter of what you came across? ASCII solved those problems and acted as a binary babble fish between the user and ALL types of systems. Check out our TPT store for fun STEM activities: https://www.teacherspayteachers.com/Store/Rosie-Research-Science. Get our Binary and Imaging unit on TPT for less than a cup of fancy coffee: https://www.teacherspayteachers.com/Product/Learning-Binary-and-Imaging-Short-Activities-Bundle-3083675
Views: 590 Rosie Research
What is ASCII and How to Create Complete ASCII Table
 
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CREATE ASCII TABLE IN EXCEL, KNOW ASCII, What is the Ascii code, What is an example of ascii. This topic included in Information and communication technology (ICT) too, And some time asks in govt exams like Railway, Teacher, SSC,लेखपाल भर्ती उत्तर प्रदेश 2018, RPSC, Bank,IBPS,LDC,2nd grade Teacher,1st Grade Teacher, RRB. #dilipmj
Views: 74 Dilip MJ Gangwar
7 - Arabic C programming (ascii)
 
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اعتذر على كفاءة التسجيل .. لكن سيكون أفضل كثيرا مع زيادة عدد الفيديوهات للمتابعة على Facebook : https://www.facebook.com/HelpChannelEasyLearn للتواصل عبر البريد الالكتروني : [email protected]
Views: 8794 Help Channel
SDU Tools   36   ASCII Only Function for T-SQL
 
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SDU Tools are free tools for SQL Server developers and DBAs. This tool is used to remove non-ASCII characters from strings (varchar, nvarchar). Optionally, it can remove embedded control characters like carriage returns or line feeds. You'll find more info about SDU Tools and download details at http://www.sqldownunder.com/Resources/SDUTools
Views: 69 SQL Down Under
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: 1331 WingsOfTechnology
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: 10927 Nathan Schutz
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: 942 WingsOfTechnology
Convert ASCII Code to its Equivalent Character by CHR$( ) | GW BASIC Programming Tutorials
 
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How to Convert an ASCII Codes to their Equivalent Character by CHR$( ) which is a string function| GW BASIC Programming Tutorials After watching this video, you would be able to Convert an ASCII Codes from 0 to 255 to its Equivalent Characters by using function CHR$( ) of GW Basic. Start Learning Quickly
Views: 56 Basic Education
Oracle DECOMPOSE Function
 
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The Oracle DECOMPOSE function is used to transform a string into a Unicode string. It will split a character that has an accent, for example, into two characters. It’s the opposite of the COMPOSE function. The syntax of the DECOMPOSE function is: DECOMPOSE ( input_string [CANONICAL|COMPATIBILITY] ) The parameters of this function are: - input_string is the string that will be decomposed into separate character values in a string. It can be any character data type. - CANONICAL|COMPATIBILITY is an optional parameter and allows you to specify the mode of decomposition. CANONICAL is the default. CANONICAL means it can be re-composed with the COMPOSE function. COMPATIBILITY means that it can’t be re-composed, but it can be useful for katakana characters. For more information about Oracle SQL functions, visit Database Star: https://www.databasestar.com/sql-functions/
Views: 108 Database Star
Print Upper Case & Lower Case Alphabets without knowing ASCII value SQL
 
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This video is useful in scenarios when we forgot the ASCII value of Alphabets. Even though we are able to output 'a' to 'z' OR 'A' to 'Z'. Many times we got confused between ASCII value of upper case and Lower case. So we can create a stored procedure with same logic, which expects start and end values. Well the ASCII values for alphabets are: a - z (Lower Case) 97 - 122 A - Z (Upper Case) 65 - 90
Unicode-UTF-ASCII
 
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Learn Java
Views: 18669 spoddern
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: 8415 Caleb Curry
length, concat & chr | sql functions | oracle database 11g version 2 |
 
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executed in oracle database 11g version 2
Views: 150 Education 4u
008 - String Functions - ASCII, LTRIM, RTRIM
 
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how to use the fllowing String functions in SQL ASCII LTRIM RTRIM TRIM
Views: 124 Rishabh Jain
Oracle SQL Tutorial 29 - NCHAR Part 1
 
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NCHAR is another data type available in Oracle database. This data type is very similar to the char data type with some key differences. NCHAR is also known as the national character set. This is a data type that allows us to store Unicode characters. It is really recommended that you watch the two videos over Unicode and UTF-8 because this video is going to talk a lot about it. Why is it that we have an entire data type dedicated to storing Unicode? That will be easily understood once we understand how character sets and encodings are applied to Oracle. They are applied at the database level. That means that you have a character set that applies to the entire database. This is in contrast to some database management systems that allow you to apply a data type at the table and column level. For example, in MySQL you can make a table have a character set, and make a specific column in that table a different character set. That means we can customize everything at the expense of adding potential complexity and confusion. Oracle does not work that way. In Oracle, we define one character set for the entire database. The problem with defining a character set for the entire database is that it may not be the character set we want to use for everything. That is where the NCHAR column comes in. The NCHAR column allows us to have a Unicode column inside of a database that does not use Unicode as the default character set. That is important because it is very often that we want to use Unicode but we may not need to use it for everything, for example if that application is working with ASCII nearly all of the time. If you are using Unicode for the database, then NCHAR is not going to be needed and should not be used. This data type is not as widely accepted, so only use it if you absolutely need to, specifically when you need to store Unicode in a non-Unicode database. Additionally, there is some controversy when it comes to whether or not you should use the CHAR and NCHAR data types in Oracle at all. We will discuss why in an upcoming video. In the next video we are going to go over some specific character sets that Oracle can use. See you then! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Suppor 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: 4323 Caleb Curry
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: 191 Softtech forum
Interacting with SQL functions(ASCII(),CHAR(),BIN(),HEX(),OCT(),BIT_LENGTH(),CHAR_LENGTH())
 
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a few functions which are used in SQL, if you have any questions feel free to ask them in the comments.
Views: 285 Akash Zeus
Oracle SQL Tutorial 27 - CHAR Part 1
 
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This video and the next is going to cover CHAR and NCHAR. Be sure to check out the previous two videos as these are going to introduce you to some foundational knowledge required to understand these data types. CHAR is a fixed-length data type. What that means is that every value for a CHAR column is going to be the same length. You specify the length in parenthesis when you create the table. The thing you need to know though is that the default measurement is in bytes. That means if you specify the length to be CHAR(50), the length of each value will be 50 bytes, by default. If you want to change that to 50 characters, you can pass in the word CHAR as in CHAR(50 CHAR). This is known as a qualifier. Specifically, they are known as length semantics qualifiers (describes the meaning of the given length). Now, I said the default was bytes, but you can actually change the default to characters. In that situation, you can actually use the keyword BYTE to break away from the default. In general, it's best to put CHAR or BYTE even if it is the default. In general, it's best to keep things consistent. It's okay to have these measured in CHAR or BYTE, but it is recommended that every column is the same. It allows you to be more consistent as if some columns measure length in bytes and some measure length in characters, things can get confusing. If you do want to change the default, look up NLS_LENGTH_SEMANTICS as well as the potential problems it may bring. What values are allowed in parenthesis? That is what we are going to 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: 4847 Caleb Curry
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
SQL Server CHAR Function ASCII and CHARINDEX String Search Queries Command DB
 
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SQL Server Database CHAR Function ASCII and CHARINDEX String Search Queries Command DB.
Views: 24 Saidah Faulia
Strings in PL SQL Tutorial
 
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Subscribe for more PL SQL tutorials https://www.youtube.com/channel/UC7sbHUgN8FnJEZkEjvKTwJg String Function & Purpose 1 ASCII(x); Returns the ASCII value of the character x. 2 CHR(x); Returns the character with the ASCII value of x. 3 CONCAT(x, y); Concatenates the strings x and y and return the appended string. 4 INITCAP(x); Converts the initial letter of each word in x to uppercase and returns that string. 5 INSTR(x, find_string [, start] [, occurrence]); Searches for find_string in x and returns the position at which it occurs. 6 INSTRB(x); Returns the location of a string within another string, but returns the value in bytes. 7 LENGTH(x); Returns the number of characters in x. TUTORIALSPOINT Simply Easy Learning Page 59 8 LENGTHB(x); Returns the length of a character string in bytes for single byte character set. 9 LOWER(x); Converts the letters in x to lowercase and returns that string. 10 LPAD(x, width [, pad_string]) ; Pads x with spaces to left, to bring the total length of the string up to width characters. 11 LTRIM(x [, trim_string]); Trims characters from the left of x. 12 NANVL(x, value); Returns value if x matches the NaN special value (not a number), otherwise x is returned. 13 NLS_INITCAP(x); Same as the INITCAP function except that it can use a different sort method as specified by NLSSORT. 14 NLS_LOWER(x) ; Same as the LOWER function except that it can use a different sort method as specified by NLSSORT. 15 NLS_UPPER(x); Same as the UPPER function except that it can use a different sort method as specified by NLSSORT. 16 NLSSORT(x); Changes the method of sorting the characters. Must be specified before any NLS function; otherwise, the default sort will be used. 17 NVL(x, value); Returns value if x is null; otherwise, x is returned. 18 NVL2(x, value1, value2); Returns value1 if x is not null; if x is null, value2 is returned. 19 REPLACE(x, search_string, replace_string); Searches x for search_string and replaces it with replace_string. 20 RPAD(x, width [, pad_string]); Pads x to the right. 21 RTRIM(x [, trim_string]); Trims x from the right. 22 SOUNDEX(x) ; Returns a string containing the phonetic representation of x. 23 SUBSTR(x, start [, length]); Returns a substring of x that begins at the position specified by start. An optional length for the substring may be supplied. 24 SUBSTRB(x); Same as SUBSTR except the parameters are expressed in bytes instead of characters for the single-byte character systems. 25 TRIM([trim_char FROM) x); Trims characters from the left and right of x. 26 UPPER(x); Converts the letters in x to uppercase and returns that string.
Views: 394 Puzzle Guru
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: 150111 Squared Programming
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: 238 TamePass
Oracle SQL Tutorial 28 - CHAR Part 2
 
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Now this video is a continuation of the last video. I decided to break the video up into sections so they didn't cover so much information and drag on for 10 minutes. This video we are going to talk about the length of CHAR. Now it is important to remember that CHAR is a fixed-length data type. This means that every row's value for this column is going to have the same length. The length is given to the database by specifying the length in parenthesis, such as CHAR(10). If you give a value shorter than that, it will be padded with spaces. What range is allowed though? The lowest is actually one. The highest is 2000. Now, remember that Oracle allows either the specification of CHAR or BYTE. The limit of 2000 is actually 2000 bytes. What happens if you put 2000 CHAR? Well, Oracle actually lets you do that. What is the problem with this though? The problem is that not all characters are 1 byte. This means that our 2000 CHAR is inaccurate. This will only work with 1 byte characters. This might not seem like a big problem, but it can lead to runtime errors in code that uses our database. A runtime error is when our code runs and in certain circumstances we get an error and others we do not. If we allow a user to insert up to 2000 characters, but they decide to use multibyte characters such as Chinese, we will get an error. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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: 3913 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: 7016 Caleb Curry
ꘒ0003 Unicode Symbols Single byte and Multibyte Oracle Databases
 
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 🐧 僠 僰 ♠ ♣ ♥ ♦ ⓭ ⧨
Views: 244 Geraldo Viana
How to Find ASCII Value of a Character in Java
 
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Views: 208 T3SO Tutorials
ASCII and UNICODE explained
 
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brief description of character data representation
Views: 831 Sonny Dewhurst
Oracle10g / Single Row Functions / Conversion Functions
 
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دوال الصف الواحد للتحويل وتشمل : TO_CHAR, TO_NUMBER, TO_DATE, CHR, ASCII http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions001.htm
Views: 1012 Saif Academy
Find Special Character in a string using Sql
 
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In this video we learn how to find the special character , number in a string using sql server. -- How to Find Number and character in a string SELECT Employeeid,LastName FROM Employees WHERE LastName like '%[^0-9A-Z]%' -- How to find Special Character in a string SELECT Employeeid,LastName FROM Employees WHERE LastName like '%[@,#,$,%,*]%' -- How to find number in a string SELECT Employeeid,LastName FROM Employees WHERE LastName like '%[0-9]%'
Views: 2219 SmartCode
ASCII and counting Binary - Digital Logic Design
 
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This video gives a brief explanation of ASCII as a code that represents the American Alphabet as numbers. Then several numerical representations of the alphabet are converted from Decimal to Binary form.
Oracle SQL Tutorial 23 - Intro to Data Types
 
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Every column within a table has to be given what is known as a datatype. A data type is a fairly simple concept when you dissect the word. It is literally the type of data. Why do we use types, though? The biggest benefit is so that Oracle knows how to interpret and work with our data. It also makes the database better at rejecting incorrect data. If we had to concept of a data type, there would be a lot more work involved in forcing data to be of the right format. It would also be harder for us to get the database to treat the data in the correct way. In addition to this, a database can optimize storage and performance for a column if everything is of the same data type. Because of this, each column can only support one data type. There are numerous different data types in Oracle and it helps us if we categorize them. The first types of datatypes we should learn about are: String, Numeric, Temporal Now, there are few more categories we could make, but these are the main ones. We will worry about the other ones another day as I am only introducing the topic. A string data type is anything within quotes. Most databases use single quotes for string data. Inside of the quotes can be any number of characters. What is a character? Think of any letter, number, or symbol you can type. Some people call these letters, numbers, and symbols alphanumeric. Numeric data type includes only numbers. These data types are often used for data that you plan on using for mathematical calculations. Temporal data types are data types that are used for dates and times. Now, each data type is probably going to have some options you'll need to worry about, but one that comes up with every data type is storage. The reason we need to consider storage is because we may end up with millions of rows in a table and the difference between a few bytes for each row will make a huge difference when we look at the whole picture. When a data type gives you the option of size, you will want to a size that will be able to hold what you need, but nothing more. In the upcoming videos we are going to discuss the available data types in more detail. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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: 8396 Caleb Curry
Oracle Character Manipulation | REVERSE | LENGTH Functions | Oracle Tutorial for Beginners
 
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Oracle Character Manipulation | REVERSE | LENGTH Functions | Oracle Tutorial for Beginners Oracle Tutorial for Beginners Oracle Tutorial for Beginners Oracle LENGTH Function Oracle REVERSE Functions Oracle SQL Tutorials for Beginners Oracle tutorials Oracle Character Manipulation Oracle Character Manipulation Character Manipulation Oracle 12c Oracle 18c Oracle In built Functions Oracle LENGTH() Oracle REVERSE() reversing string in oracle without using reverse function query to reverse a string in oracle how to reverse a string in oracle sql without using reverse function substr oracle reverse string using substr in oracle instr in oracle reverse function in oracle how to reverse a string in sql without using reverse function
Views: 271 Oracle PL/SQL World
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: 305 suresh babu
Как компьютер кодирует символы (кодировки, encodings)
 
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Если вы программируете или просто пользуетесь компьютером, то периодически видите на экране «кракозябры», хотя хотелось бы видеть нормальный текст на русском. В одном из отрывков курса НПДВ-2 мы рассказываем о причинах этой ситуации. Наши курсы: Настоящее программирование для всех I: http://bit.ly/1RsD9Ec Настоящее программирование для всех II: http://bit.ly/1OOIUw8 ---------------------- Темы видео: кодировки, encodings, символы отображаются неверно, проблема с кодировками, что такое кодировки, кодировки windows, кодировка utf-8, кодировка cp 1251
LPAD and RPAD in Oracle SQL | Character Manipulation | Oracle Tutorial for Beginners
 
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LPAD and RPAD in Oracle SQL | Character Manipulation | Oracle Tutorial for Beginners Oracle Database Tutorial for Beginners Oracle SQL Tutorial for Beginners Oracle SQL lpad and rpad in oracle with examples Oracle Tutorial for Beginners LAPD function in Oracle RPAD function in Oracle LPAD in Oracle RPAD in Oracle lpad and rpad in oracle with examples LPAD() in Oracle RPAD() in Oracle how to use lpad and rpad at a time lpad oracle example how to use both lpad and rpad in oracle lpad in sql w3schools lpad and rpad in oracle with examples lpad in sql server lpad in oracle lpad and rpad in Oracle SQL
Views: 274 Oracle PL/SQL World
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: 205 Muo sigma classes
Oracle SQL Tutorial 32 - VARCHAR2 and NVARCHAR2
 
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This video we are going to discuss the VARCHAR2 and the NVARCHAR2 data types. The previous videos are a good foundation to this video. I've actually discussed so much stuff in those videos that I don’t have a whole lot to say. Good for you, right? I discussed over the previous videos that you should prefer to use VARCHAR2 over CHAR. That's because there is not a difference in performance or storage for a VARCHAR2 column. The only difference is that an CHAR column forces each value to take up a certain length even if it's not. There is one difference between the variable length and fixed length data types here that you need to know about, and that is storage limits. CHAR has a limit of 2000 bytes, while VARCHAR2 has a limit of 4000 bytes. That means you can store twice as much junk in a VARCHAR2 column! Other than that, these data types work exactly the same. I recommend you always use the VARCHAR2 data types instead of the CHAR data types, and only use NVARCHAR2 if you have a non-Unicode database. This will allow you to store Unicode characters in a column. Now, the amount of storage you can put in a VARCHAR2 column is twice what you can put in a CHAR column, but 4000 characters is still not very many characters. This is where the LOB data types come in, 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: 5795 Caleb Curry
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: 442 Salah Bedeiwi