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! (Logical Not) (SSIS Expression)

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Negates a Boolean operand.

Note

The ! operator cannot be used in conjunction with other operators. For example, you cannot combine the ! and the > operators into the !>. operator.

Syntax

  
!boolean_expression

Arguments

boolean_expression
Is any valid expression that evaluates to a Boolean. For more information, see Integration Services Data Types.

Result Types

DT_BOOL

Remarks

The following table shows the result of the ! operation.

Original Boolean expression After applying the ! operator
TRUE FALSE
NULL NULL
FALSE TRUE

Expression Examples

This example evaluates to FALSE if the Color column value is "red".

!(Color == "red")

This example evaluates to TRUE if the value of the MonthNumber variable is the same as the integer that represents the current month. For more information, see MONTH (SSIS Expression) and GETDATE (SSIS Expression).

!(@MonthNumber != MONTH(GETDATE())

See Also

Operator Precedence and Associativity
Operators (SSIS Expression)