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get-bit-transact-sql.md

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title GET_BIT (Transact-SQL)
description Transact-SQL reference for the GET_BIT function.
author thesqlsith
ms.author derekw
ms.reviewer randolphwest
ms.date 07/26/2022
ms.prod sql
ms.prod_service database-engine
ms.technology t-sql
ms.topic reference
f1_keywords
GET_BIT
GET_BIT_TSQL
helpviewer_keywords
bit manipulation [SQL Server], get bit
GET_BIT function
bit shifting [SQL Server], get bit
dev_langs
TSQL
monikerRange >= sql-server-ver16 || >= sql-server-linux-ver16

GET_BIT (Transact SQL)

GET_BIT takes two parameters and returns the bit in expression_value that is in the offset defined by bit_offset.

:::image type="icon" source="../../database-engine/configure-windows/media/topic-link.gif" border="false"::: Transact-SQL Syntax Conventions

Syntax

GET_BIT ( expression_value, bit_offset )

Arguments

expression_value

Any integer or binary expression that isn't a large object (LOB).

bit_offset

Any integer.

Return type

bit

The bit_offset parameter in GET_BIT is used to identify the nth bit of the data to get or set. In integer types, the 0^th bit is the least significant bit. In binary types, the 0^th bit is the least significant bit in the rightmost byte.

GET_BIT will throw an error if bit_offset is negative or greater than the last bit in the data type.

Remarks

In the initial implementation, we won't support Distributed Query functionality for the bit manipulation function intrinsics, within linked server and ad hoc queries.

Examples

In this example, the second and fourth bits are returned.

SELECT GET_BIT ( 0xabcdef, 2 ) as Get_2nd_Bit,
GET_BIT ( 0xabcdef, 4 ) as Get_4th_Bit;

The results are as follows:

Get_2nd_Bit Get_4th_Bit
1 0

Note

0xabcdef in binary is 1010 1011 1100 1101 1110 1111. The second and fourth bits are highlighted.

See also