SQL Server SIGN() Function

Return the sign of a number

Definition and Usage

The SIGN() function returns the sign of a number.

This function will return one of the following:

If number > 0, it returns 1

If number = 0, it returns 0

If number < 0, it returns -1

SIGN(number)

Parameter	Description
number	Required. The number to return the sign for

Works in:	SQL Server (starting with 2008), Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse

Return the sign of a number:

SELECT SIGN(-12);

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