VAR

Returns the statistical variance of all values in the specified expression. May be followed by the OVER clause.

Syntax

VAR ( [ ALL | DISTINCT ] expression )
   OVER ( [ partition_by_clause ] order_by_clause )

Arguments

_expression_

Is an expression of the exact numeric or approximate numeric data type category, except for the bit data type. Aggregate functions and subqueries are not permitted.

Return types

float

Examples

SELECT VAR([IntNotNullColumn]) AS [Var] FROM [IntTable]

See Also