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Informix Error -29008: DDM parameter (parameter-codepoint) not supported error. Disconnected from AS.

Cause and resolution

DDM parameter (parameter-codepoint) not supported error. Disconnected from AS.

An unsupported DDM parameter is encountered.

The remote RDB received an unsupported/unrecognized DDM parameter. The current SQL statement is terminated. The application is disconnected from the application server.

The hexadecimal codepoint of the DDM parameter in question is returned as a token in SQLERRM.

To interpret the hexadecimal codepoint of the DDM parameter requires DDM knowledge.

Attempt to rerun the application. If the problem persists, notify the DBA for assistance in analyzing the SQL statement that yields this SQLCODE. If the error recurs, note all circumstances and contact IBM Informix Technical Support.

Oninit® Troubleshooting Guidance

Reasons / Common Causes

-29008 fires when the remote RDB receives a DDM parameter it doesn't support or recognize — per the official guidance, the current SQL statement is terminated and the application is disconnected from the application server. The hexadecimal parameter codepoint is returned as a token in SQLERRM.

  1. An unsupported/unrecognized DDM parameter sent to the remote RDB, 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 parameter.

Diagnostic Checks
  1. Extract the parameter codepoint from SQLERRM, rerun the application, and escalate to the DBA if it persists.
Related Errors / Related Topics
  • -29009 — "DDM parameter value (parameter,parameter-value) not supported. Disconnected from AS." A related DDM error, on an unsupported parameter value rather than an unsupported parameter itself.
  • -29010 — "AS reply message (codepoint=codepoint) not supported by Gateway." A related unsupported-DDM-element error, on a reply message received by the Gateway.

The remote RDB received an unsupported/unrecognized DDM parameter and disconnected — rerun the application, escalating to the DBA if it persists.