Hello Helen,
Unfortunately, I have no success. and RDB$FIELD_NAME = ' || '"' || fname || '"'; string: NAME = "COLUMNNAME" ' result: Invalid token. Dynamic SQL Error. SQL error code = -104. Unexpected end of command - line 4, column 22. and RDB$FIELD_NAME = ' || '''' || fname || ''''; string: NAME = ' 'COLUMNAME ' ' ' result: The same error like first. (I have add Spaces in the examples for better clarity) . The method with then ascii_val(39) || f6 || ascii_val(39) String: NAME = 51COLUMNNAME51^ Result: The same. What doing I'm wrong? I'm using IBExpert and FB 2.5 cs Thank you. Best regards. Olaf [Non-text portions of this message have been removed]