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Informix Error -29018: AS does not support the DDM command: command-codepoint.

Cause and resolution

AS does not support the DDM command: command-codepoint.

The application server does not support the DDM command. This error causes termination of processing of the command. The application is also disconnected from the application server.

The SQLERRM contains the hex codepoint of the DDM command in question.

Rerun the application. If the problem persists, notify the DBA for assistance in analyzing the SQL statement that yielded this SQLCODE. If the error recurs, note all circumstance and contact IBM Informix Technical Support.

Oninit® Troubleshooting Guidance

Reasons / Common Causes

-29018 fires when the application server doesn't support a DDM command the Gateway sent — per the official guidance, the command's processing is terminated and the application is disconnected. The hexadecimal codepoint of the command is returned in SQLERRM.

  1. The application server not supporting the sent DDM command, per the official guidance — the direct, only cause.
Solutions / Resolution
  1. Rerun the application, per the official guidance.
  2. If the problem persists, notify the DBA for analysis of the triggering SQL statement, per the official guidance.
  3. If the error recurs, note all circumstances and contact IBM Informix Technical Support, per the official guidance.
Examples
N/A

No specific triggering statement is documented beyond an unsupported DDM command.

Diagnostic Checks
  1. Extract the command codepoint from SQLERRM, rerun the application, and escalate to the DBA if it persists.
Related Errors / Related Topics
  • -29019 — "AS does not support the DDM object type: object-codepoint." A related unsupported-DDM-element error, on an object type rather than a command.

The application server didn't support a DDM command sent by the Gateway and disconnected — rerun the application, escalating to the DBA if it persists.