I guess '=' has higher precedence than '$'. You can use parenthethis to get correct reslut

? cse_closed = ("CLOSED" $ UPPER(currentCaseStatus))

>I'm curious why the following give me an "Operator/operand type mismatch" error:
>
>cse_closed="CLOSED"$UPPER(currentCaseStatus)
>
>cse_closed is a logical field in the currently selected table.
>currentCaseStatus is a character field in the currently selected table.
>
>
>AND:
>
>"CLOSED"$UPPER(currentCaseStatus)=cse_closed
>
>does NOT give me an error, but returns a logical value.
>
>Thanks, J