General MySQL Oracle SQL Server

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Types of Data Literals in SQL Server Transact-SQL
What are different types of data literals supported in SQL Server Transact-SQL? There are 8 types of data literals supported in SQL Server Transact-SQL: 1. Integer Number Literals - Sequences of numbers prefixed with +/- sign if needed. Integer number literals are used to represent integer values. F... 2017-05-20, 1138👍, 0💬

Single-byte String Literals in SQL Server Transact-SQL
What are single-byte string literals supported in SQL Server Transact-SQL? Single-byte string literals in Transact-SQL are sequences of characters enclosed in single quotes. String literals are used to provide values to string variables or table columns like CHAR(40), VARCHAR(40), etc. String litera... 2017-05-20, 1118👍, 0💬

CHAR(n) - Truncating/Padding Strings in SQL Server Transact-SQL
How Fixed Length Strings Are Truncated and Padded in SQL Server Transact-SQL? When the length of the input string does not match the storage size of the fixed length string data type CHAR(n). SQL Server will: If the input string of CHAR(n) has less than n bytes, it will be padded with space characte... 2017-05-13, 2650👍, 0💬

Casting Strings to Wrong Code Pages in SQL Server Transact-SQL
What Happens If Strings Are Casted into Wrong Code Pages in SQL Server Transact-SQL? In SQL Server, different collations may use different code pages. For example: Albanian_CI_AI_KS_WS - Albanian, Code page 1250. Arabic_CI_AS_KS_WS - Arabic, Code page 1256. French_CI_AI - French, Code page 1252. Kor... 2017-05-13, 1376👍, 0💬

Default Collation in SQL Server Transact-SQL
How To Find Out What Is the Default Collation in SQL Server Transact-SQL? The default collation of a database comes from the server if you are not using the COLLATE clause in the CREATE DATABASE statement. If you are not using the COLLATE clause for character string column, it will use the default c... 2017-05-13, 1238👍, 0💬

Collation - Character Code Page in SQL Server Transact-SQL
What Is a Collation in SQL Server Transact-SQL? A collation in Transact-SQL is a set of specifications defining a character set and its sorting rules. SQL Server support a large number of built-in collations. For example: Albanian_CI_AI_KS_WS - Albanian, case-insensitive (CI), accent-insensitive (AI... 2017-05-13, 1163👍, 0💬

COLLATE Clause in SQL Server Transact-SQL
How To Specify the Collation for a Character Data Type in SQL Server Transact-SQL? If you do not want to use the default collation provided by the SQL Server, you can use the "COLLATE collation_name" clause to specify a different collation to be used at different levels: Database Level - Used in CRE... 2017-05-13, 1114👍, 0💬

Binary Literals in SQL Server Transact-SQL
What are binary literals supported in SQL Server Transact-SQL? Binary literals in Transact-SQL are sequences of bytes written in hexadecimal digits with 0x prefixes. Binary literals are used to provide values to binary variables or table columns like BINARY, VARBINARY, IMAGE, etc. Here are some simp... 2017-05-05, 4445👍, 0💬

Exact Numeric Literals in SQL Server Transact-SQL
What are exact numeric literals supported in SQL Server Transact-SQL? Exact numeric literals in Transact-SQL are numbers written in standard signed decimal formats. Exact numeric literals are used to provide values to exact numeric variables or table columns like INTEGER, DECIMAL(8,2), MONEY, etc. E... 2017-05-05, 1299👍, 0💬

Approximate Numeric Literals in SQL Server Transact-SQL
What are approximate numeric literals supported in SQL Server Transact-SQL? Approximate numeric literals in Transact-SQL are numbers written in scientific notation formats. Approximate numeric literals are used to provide values to approximate numeric variables or table columns like LOAT(24), DOUBLE... 2017-05-05, 1101👍, 0💬

Unicode String Literals in SQL Server Transact-SQL
What are Unicode string literals supported in SQL Server Transact-SQL? Unicode string literals in Transact-SQL are sequences of characters enclosed in single quotes and prefixed with (N) as N'...'. String literals are used to provide values to string variables or table columns like NCHAR(40), NVARCH... 2017-05-05, 1099👍, 0💬

Variables and Data Types in SQL Server Transact-SQL
Where to find answers to frequently asked questions on variables and data types in Microsoft SQL Server Transact-SQL? I am new to Transact-SQL and SQL Server. Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team on variables and data types in Microsoft SQL Se... 2017-04-22, 1070👍, 0💬

Exact Numeric Data Types in SQL Server Transact-SQL
What are exact numeric data types supported in SQL Server Transact-SQL? Exact numeric data types are used to hold numeric values truncated to a specific precision and scale. There are 8 different exact numeric data types supported in SQL Server Transact-SQL: 1. BIGINT - Used to hold big integers wit... 2017-04-22, 998👍, 0💬

Entering Binary String Literals in SQL Server Transact-SQL
How To Enter Binary String Literals in SQL Server Transact-SQL? Binary string long values are normally generated by client applications by reading input channels, like image files. But sometimes, you may need to enter some short binary strings as literals. Binary string literals are entered as a str... 2017-04-22, 956👍, 0💬

What Is Variable in SQL Server Transact-SQL
What is a variable in SQL Server Transact-SQL? A variable in Transact-SQL is a symbolic name representing a memory storage that holds a piece of data. A variable has the following the components: 1. Variable name - A symbolic name to represent the variable. Variable names in Transact-SQL must starts... 2017-04-22, 952👍, 0💬

List of Data Types in SQL Server Transact-SQL
How many data types supported in SQL Server Transact-SQL? I want a list of all data types. Here is a list of all Transact-SQL data types divided into 6 categories: 1. Exact Number - Used to hold numeric values truncated to a specific precision and scale. BIGINT - Used to hold big integers. INT (or I... 2017-04-22, 931👍, 0💬

Underflow and Overflow of FLOAT Values in SQL Server Transact-SQL
What Are the Underflow and Overflow Behaviors on FLOAT Literals in SQL Server Transact-SQL? If you enter a floating number that is too big or too small for the FLOAT data type, Transact-SQL will behave as: FLOAT(24) Underflow: If a floating number is too small for FLOAT(24), it will be stored as 0 w... 2017-04-19, 3657👍, 0💬

Precision and Rounding of FLOAT Values in SQL Server Transact-SQL
How REAL and FLOAT Literal Values Are Rounded in SQL Server Transact-SQL? By definition, FLOAT(n) should store the mantissa of the floating number in n bits. For example, FLOAT(16) should have a precision one-byte less than FLOAT(24). However, SQL Server Transact-SQL only supports two precisions for... 2017-04-19, 2146👍, 0💬

Overflow Errors with INT Values in SQL Server Transact-SQL
What Happens If an Integer Is Too Big for INT (INTEGER) Date Type in SQL Server Transact-SQL? If you are entering an INT data type literal with representing an integer value too big for INT data type to store, the SQL Server will give you an arithmetic overflow error. The same error will happen on B... 2017-04-19, 1214👍, 0💬

Overflow and Rounding on NUMERIC Values in SQL Server Transact-SQL
How Extra Digits Are Handled with NUMERIC Data Type Literals in SQL Server Transact-SQL? Exact numeric data types defined with NUMERIC(p,s) has two limits defined by two parameters: p (precision) and s (scale): Maximum number of digits of the integer part (digits before the decimal point) is defined... 2017-04-19, 1125👍, 0💬

Approximate Numeric Data Types in SQL Server Transact-SQL
What are approximate numeric data types supported in SQL Server Transact-SQL? Approximate numeric data types are used to hold numeric values with floating scales. There are 3 different approximate numeric data types supported in SQL Server Transact-SQL: 1. FLOAT - Used to hold values with different ... 2017-04-19, 1087👍, 0💬

Entering 0.001 Second in DATETIME in SQL Server Transact-SQL
Why I Can Not Enter 0.001 Second in DATETIME values in SQL Server Transact-SQL? If you enter milliseconds in data and time values, they will be rounded up to 10/3 millisecond increments, because DATETIME data type uses 4 bytes to store the time of the day. A 4-byte integer can only give an accuracy ... 2017-04-15, 1909👍, 0💬

Differences of DECIMAL and FLOAT in SQL Server
What Are the Differences between DECIMAL and FLOAT in SQL Server Transact-SQL? DECIMAL and FLOAT are both used to store numerical values. But they have the following main differences: DECIMAL(p,s) stores values with the decimal point fixed at the position of s (scale) digits from the right. The tota... 2017-04-15, 1129👍, 0💬

Date and Time Data Types in SQL Server Transact-SQL
What are date and time data types supported in SQL Server Transact-SQL? Date and time data types are used to hold dates and times. There are 6 date and time data types supported in SQL Server Transact-SQL: 1. DATETIME - Use to hold date and times with a large precision using 8-byte storages: 4 bytes... 2017-04-15, 1110👍, 0💬

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General MySQL Oracle SQL Server