---
title: "&= (Bitwise AND Assignment) (Transact-SQL)"
description: "&= (Bitwise AND Assignment) (Transact-SQL)"
author: rwestMSFT
ms.author: randolphwest
ms.reviewer: ""
ms.date: "01/10/2017"
ms.prod: sql
ms.prod_service: "database-engine, sql-database, synapse-analytics, pdw"
ms.technology: t-sql
ms.topic: reference
ms.custom: ""
f1_keywords:
  - "&="
  - "&=_TSQL"
helpviewer_keywords:
  - "compound operators, &="
  - "assignment operators, &="
  - "augmented operators, &="
  - "&= (bitwise AND equals)"
dev_langs:
  - "TSQL"
monikerRange: ">= aps-pdw-2016 || = azuresqldb-current || = azure-sqldw-latest || >= sql-server-2016 || >= sql-server-linux-2017 || = azuresqldb-mi-current"
---

# &= (Bitwise AND Assignment) (Transact-SQL)

[!INCLUDE [sql-asdb-asdbmi-asa-pdw](../../includes/applies-to-version/sql-asdb-asdbmi-asa-pdw.md)]


Performs a bitwise logical AND operation between two integer values, and sets a value to the result of the operation.  
  
![Topic link icon](../../database-engine/configure-windows/media/topic-link.gif "Topic link icon") [Transact-SQL Syntax Conventions](../../t-sql/language-elements/transact-sql-syntax-conventions-transact-sql.md)  
  
## Syntax  
  
```syntaxsql  
expression &= expression  
```  
  
[!INCLUDE[sql-server-tsql-previous-offline-documentation](../../includes/sql-server-tsql-previous-offline-documentation.md)]

## Arguments

*expression*  
Is any valid [expression](../../t-sql/language-elements/expressions-transact-sql.md) of any one of the data types in the numeric category except the **bit** data type.  
  
## Result Types

Returns the data type of the argument with the higher precedence. For more information, see [Data Type Precedence (Transact-SQL)](../../t-sql/data-types/data-type-precedence-transact-sql.md).  
  
## Remarks

For more information, see [& (Bitwise AND) (Transact-SQL)](../../t-sql/language-elements/bitwise-and-transact-sql.md).  
  
## See Also

- [Compound Operators (Transact-SQL)](../../t-sql/language-elements/compound-operators-transact-sql.md)
- [Expressions (Transact-SQL)](../../t-sql/language-elements/expressions-transact-sql.md)
- [Operators (Transact-SQL)](../../t-sql/language-elements/operators-transact-sql.md)
- [Bitwise Operators (Transact-SQL)](../../t-sql/language-elements/bitwise-operators-transact-sql.md)