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Introduction:

In this article I will explain what is the difference between bit, tinyint, smallint, int and bigint datatypes in SQL Server.

Description:

In previous post I explained Differences between char, varchar and nvarchar in SQL Server and many articles relating to SQL Server. Now in this article I will explain what is the difference between bit, tinyint, smallint, int and bigint datatypes in SQL Server.

Bit DataType

This datatype represents a single bit that can be 0 or 1.

tinyint DataType

This datatype represents a single byte which is used to store values from 0 to 255 (MinVal: 0, MaxVal: 255). Its storage size is 1 byte.

smallint DataType

This datatype represents a signed 16-bit integer which is used to store values from -2^15 (-32,768) through 2^15 - 1 (32,767) and its storage size is 2 bytes.

int DataType

This datatype represents a signed 32-bit integer which is used to store values from -2^31(-2,147,483,648) to 2 ^31-1(2,147,483,647). Its storage size is 4 bytes.

Bigint DataType

This datatype represents a signed 64-bit integer which is used to store values from -2^63 (-9223372036854775808) through 2^63-1 (9223372036854775807). Its storage size is 8 bytes.

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4 comments :

Anonymous said...

thank you suresh,nice article

Anonymous said...

nice

Anonymous said...

when and where these datatyes to be used , i mean how we can differentiate the results of these datatypes

Anonymous said...

nice article.i'm freshers also.i understood this but i don't know when we used actually..Please explain in brief.Thanks

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