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Upper Purpose Returns all letters in text as uppercase. Format Upper(text) Parameters text - any text expression or text field Data type returned text Originated in FileMaker Pro 6.0 or earlier Description Use the Upper function to ensure consistent data entry of such things as state abbreviations or postal codes. Examples Upper(“Ca”) returns CA. Upper(“12n34p”) returns 12N34P. Related topics Functions reference (category list) Functions reference (alphabetical list) About formulas About functions Defining calculation fields Using operators in formulas