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! (Logical Not) (SSIS)

Negates a Boolean operand.

ms141681.note(en-US,SQL.90).gifNote:
The ! operator cannot be used in conjunction with other operators. For example, you cannot combine the ! and the > operators into the !>. operator.



!boolean_expression
        

boolean_expression

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

DT_BOOL

The following table shows the result of the ! operation.

Original Boolean expression After applying the ! operator

TRUE

FALSE

NULL

NULL

FALSE

TRUE

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) and GETDATE (SSIS).

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

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