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divide-equals-transact-sql.md

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title (Division Assignment) (Transact-SQL)
description /= (Division Assignment) (Transact-SQL)
author rwestMSFT
ms.author randolphwest
ms.date 09/12/2017
ms.service sql
ms.subservice t-sql
ms.topic reference
ms.custom
ignite-2025
f1_keywords
/=_TSQL
/=
helpviewer_keywords
compound operators, /=
assignment operators, /=
augmented operators, /=
/= (divide equals)
dev_langs
TSQL
monikerRange >=aps-pdw-2016 || =azuresqldb-current || =azure-sqldw-latest || >=sql-server-2016 || >=sql-server-linux-2017 || =azuresqldb-mi-current || =fabric || =fabric-sqldb

/= (Division Assignment) (Transact-SQL)

[!INCLUDE sql-asdb-asdbmi-asa-pdw-fabricse-fabricdw-fabricsqldb]

Divides one number by another and sets a value to the result of the operation. For example, if a variable @x equals 34, then @x /= 2 takes the original value of @x, divides by 2 and sets @x to that new value (17).

:::image type="icon" source="../../includes/media/topic-link-icon.svg" border="false"::: Transact-SQL syntax conventions

Syntax

expression /= expression

Arguments

expression
Is any valid expression 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).

Remarks

For more information, see (Division) (Transact-SQL).

Examples

The following example, sets a variable to 17. Then uses the /= operator to set the variable to half of it's original value.

DECLARE @myVariable DECIMAL(5,2);
SET @myVariable = 17.5;
SET @myVariable /= 2;
SELECT @myVariable AS ResultVariable;

[!INCLUDEssresult-md]

ResultVariable
8.75

See Also

Compound Operators (Transact-SQL)
Expressions (Transact-SQL)
Operators (Transact-SQL)