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Revision as of 17:55, 31 July 2014 by Mlarocca (talk | contribs) (Mlarocca moved page $UPDVAL to $UpdVal: Lower case change)
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The $UPDVAL function is used in conjunction with the ON FIELD CONSTRAINT CONFLICT unit. If $UPDVAL is invoked from an ON FCC unit following the detection of a field-level constraint conflict, it returns the field value which is causing the constraint violation. At all other times, $UPDVAL returns a null string. The $UPDVAL function takes no arguments.