| title | ABS (Transact-SQL) | ||||
|---|---|---|---|---|---|
| description | ABS (Transact-SQL) | ||||
| author | markingmyname | ||||
| ms.author | maghan | ||||
| ms.date | 07/24/2017 | ||||
| ms.service | sql | ||||
| ms.subservice | t-sql | ||||
| ms.topic | reference | ||||
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| monikerRange | >= aps-pdw-2016 || = azuresqldb-current || = azure-sqldw-latest || >= sql-server-2016 || >= sql-server-linux-2017 || = azuresqldb-mi-current |
[!INCLUDE sql-asdb-asdbmi-asa-pdw]
A mathematical function that returns the absolute (positive) value of the specified numeric expression. (ABS changes negative values to positive values. ABS has no effect on zero or positive values.)
:::image type="icon" source="../../includes/media/topic-link-icon.svg" border="false"::: Transact-SQL syntax conventions
ABS ( numeric_expression )
[!INCLUDEsql-server-tsql-previous-offline-documentation]
numeric_expression
An expression of the exact numeric or approximate numeric data type category.
Returns the same type as numeric_expression.
This example shows the results of using the ABS function on three different numbers.
SELECT ABS(-1.0), ABS(0.0), ABS(1.0); [!INCLUDEssResult]
---- ---- ----
1.0 .0 1.0 The ABS function can produce an overflow error when the absolute value of a number exceeds the largest number that the specified data type can represent. For example, the int data type has a value range from -2,147,483,648 to 2,147,483,647. Computing the absolute value for the signed integer -2,147,483,648 will cause an overflow error because its absolute value exceeds the positive range limit for the int data type.
DECLARE @i INT;
SET @i = -2147483648;
SELECT ABS(@i);
GO Returns this error message:
"Msg 8115, Level 16, State 2, Line 3"
"Arithmetic overflow error converting expression to data type int."
CAST and CONVERT (Transact-SQL)
Data Types (Transact-SQL)
Mathematical Functions (Transact-SQL)
Built-in Functions (Transact-SQL)