Informix Error -12203: Smart Large Objects: Cannot add LO to delete undo queue.

Reasons / Common Causes

-12203 is an internal error — per the official guidance, no user-facing cause is documented beyond a failure adding a smart large object to the internal delete undo queue.

1. An internal failure queuing the object for delete-undo, per the official guidance — no further detail given.

Solutions / Resolution

1. If this error recurs, refer to your Administrator's Guide to acquire additional diagnostics, per the official guidance.
2. Contact IBM Informix Technical Support with the diagnostic information, per the official guidance.

Examples

N/A

No specific triggering statement is documented — this is reported as an internal error.

Diagnostic Checks

1. Gather diagnostics per the Administrator's Guide if the error recurs, and escalate to IBM Informix Technical Support with that information.

Related Errors / Related Topics

• -12007 — "Smart Large Objects: Cannot add smart large object to delete Q." A related delete-queue error, on the ordinary delete queue rather than the undo queue.
• -12106 — "Smart Large Objects: Could not find delete Q for transaction." A related delete-queue error, about locating the queue rather than adding to the undo queue.

An internal failure occurred adding a smart large object to the delete undo queue — gather diagnostics per the Administrator's Guide and escalate to IBM Informix Technical Support.