high-level one is the SQLCODE, which is a negative 3- digit code. The lower-level one is the ISC code (or GDSCODE) which has 9 digits. Related ISC error types are grouped under the same SQLCODE. In some cases cases, each successive gdscode error gives you further information about the error condition. Note: SQLCODE is a deprecated SQL standard; its successor is SQLSTATE. 614 CHAPTER 20. REFERENCE FOR UNIT ’IBCONNECTION’