data types sql server

ekkamrit answered on March 2, 2020 Popularity 10/10 Helpfulness 3/10

answer data types sql server

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data types sql server

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/*
INT: used to store integers (whole numbers) in the range of
-2^31 (-2,147,483,648) to 2^31 - 1 (2,147,483,647). It is commonly used to 
store primary keys, identity columns, and other types of integer-based data.

BIGINT: used to store integers in the range of -2^63 (-9,223,372,036,854,775,808)
to 2^63 - 1 (9,223,372,036,854,775,807) . It is useful for storing large numbers
that cannot fit in the INT range.

SMALLINT: used to store integers in the range of -32,768 to 32,767.

TINYINT: used to store integers in the range of 0 to 255. It is commonly used 
to store small numerical data, such as a "status" or "flag" column that can only
have a few different possible values.

FLOAT: used to store floating-point numbers, which are numbers that have a 
decimal point. It can store very large or very small numbers, with a large
number of digits to the right of the decimal point. It is more efficient in
terms of storage space and speed of calculations, but less precise than DECIMAL 
or NUMERIC.

DECIMAL and NUMERIC: used to store fixed-point numbers, which are numbers that 
have a fixed number of digits to the right of the decimal point. They are more
precise than float, but the storage size and speed of calculations are relatively
larger. They are recommended to be used for financial calculations where 
precision is key.

DATE, DATETIME, DATETIME2 : used to store date and time values. DATE stores only 
the date part, DATETIME stores both the date and time parts, and DATETIME2 
stores both the date and time parts, with a higher precision.

CHAR, VARCHAR, NVARCHAR: used to store character-based data. CHAR stores
fixed-length strings and VARCHAR stores variable-length strings. NVARCHAR is 
used to store Unicode characters and is useful when you want to store multiple 
languages.

BINARY, VARBINARY: used to store binary data, such as images or files. BINARY 
stores fixed-length binary data and VARBINARY stores variable-length binary data.

BIT: used to store Boolean values (true/false or 1/0).
*/

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Contributed on Jan 11 2023

ekkamrit

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# Numeric Types
BIT	TINYINT SMALLINT INT BIGINT DECIMAL NUMERIC FLOAT REAL

# Date & Time Types
DATE TIME DATETIME TIMESTAMP YEAR

# Char & String Types (N) Denotes Unicode Versions
CHAR VARCHAR TEXT NCHAR NVARCHAR NTEXT

# Binary Data Types
BINARY VARBINARY IMAGE

# Misc
CLOB BLOB XML JSON

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Contributed on Mar 02 2020

Kaotik

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data types in sql

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• number(num) - whole numbers up to num digits
• number(num,num2) - num whole numbers up to num2 decimals
• char(num) - fixed length character/string
• varchar2(num) - used for varying length data
• date - full date
• currency - used for prices

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Contributed on Jan 27 2021

Obedient Ocelot

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