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Informix Error -12064: Smart Large Objects: Cannot update SB_LOMAP_SLOT.

Cause and resolution

Smart Large Objects: Cannot update SB_LOMAP_SLOT.

Cannot update extent map for smart large object.

Oninit® Troubleshooting Guidance

Reasons / Common Causes

-12064 fires when the server can't update a smart large object's extent map — per the official guidance.

  1. An internal failure updating the extent map, per the official guidance — no further detail given.
Solutions / Resolution
  1. If this error recurs, note all circumstances and contact IBM Informix Technical Support, per the official guidance's general pattern for this error family.
Examples
N/A

No specific triggering statement is documented beyond an extent-map update failure.

Diagnostic Checks
  1. Escalate to IBM Informix Technical Support if the error recurs — this is an internal error with no documented user-actionable cause.
Related Errors / Related Topics
  • -12060 — "Smart Large Objects: Cannot read SB_LOMAP_SLOT." A related extent-map error, on reading rather than updating.
  • -12028 — "Smart Large Objects: Cannot delete SB_LOMAP_SLOT." A related extent-map error, on deleting rather than updating.

The extent map couldn't be updated — report recurrences to IBM Informix Technical Support.