Why you don't use DTOS()?

>To create a compound index key, you've to convert all fields to the character type.

ssnumber + DTOC(orderdate,1)

Notice the second parameter used in DTOC(,1) function. It converts a date to the text format suitable for an index key.
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>>I am trying to set a primary key for a character field and a date field through an expression. I have thhe following:
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>>ssnumber+orderdate
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>>ssnumber is a character field and the orderdate is a date field. When I try and save it I get the following:
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>>Operator/operand type mismatch
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