Runtime Messages › Three Classes of Error Codes

Three Classes of Error Codes

When you process database requests from a Total application program, the transparency runtime interface returns three classes of error codes to the program, as follows:

• Syntax errors—codes resulting from syntax errors detected before CA IDMS/DB is called to perform the requested database service. These codes are in the form of standard Total error-status codes and reflect errors found in Total DML syntax.
• Errors detected by CA IDMS/DB—codes resulting from errors or possible error conditions detected by CA IDMS/DB while attempting to perform the requested database service. These codes are in the form of Total equivalents to the status codes returned to the transparency runtime interface by CA IDMS/DB.
• Transparency errors—codes resulting from internal transparency conditions. The runtime interface returns either a CA IDMS/DB status code or a transparency code that resembles a standard Total error-status code.

This appendix describes these three classes of codes.