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Nz Function - Microsoft Support
If the value of the variant argument is Null, the Nz function returns the number zero or a zero-length string (always returns a zero-length string when used in a query expression), depending on whether the context indicates the value should be a number or a string. If the optional valueifnull argument is included, then the Nz function will return the value specified by that argument if the ...
Applies To: Access for Microsoft 365, Access 2021, Access 2019, Access 2016
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