ITPub博客

You can reference items indirectly with the NAME_IN and COPY built-in subprograms.The NAME_IN function returns the contents of an indicated variable or item.  Use the NAME_IN function to get the value of an item without referring to the item directly.The following statements are equivalent:IF :emp.ename = \'smith\' -- direct referenceIF NAME_IN(\'emp.ename\') = \'smith\' -- indirect referenceThe return value is always a character string.  To use NAME_IN for a DATE or NUMBER