What does HRESULT 0x00040EC9 (DB_S_NORESULT) mean?

DB_S_NORESULT

OLE DB has no further result object

DB_S_NORESULT is HRESULT 265929 (0x00040EC9) from Microsoft OLE DB. The documented description is “No more results.” The high-order severity bit is clear, so this is a success result, but it carries more information than plain S_OK.

The result-retrieval call completed and there is no additional result object of the requested kind.

Where the result is encountered

• This result can appear in multiple-result commands; record the producing interface and method.
• This result can appear in batches containing statements that produce no rowset; record the producing interface and method.
• It can appear in iteration across rowsets, row counts, and output-only results; record the producing interface and method.

State to verify

The central question is whether the caller interprets absence according to the requested result type and does not confuse it with command execution failure.

Diagnostic sequence

• Capture the raw HRESULT 0x00040EC9 immediately after the returning method and record whether the caller used SUCCEEDED, FAILED, equality testing, or exception translation.
• Verify the method-specific state: the caller interprets absence according to the requested result type and does not confuse it with command execution failure.

Evidence to preserve

• Preserve result index.
• Preserve requested IID and result flags.
• Preserve statement sequence.
• Preserve row counts already returned.
• Preserve output parameter availability.

Correct handling, retry, and recovery

End or advance result processing as documented. Do not retry the command merely to force a rowset when the statement legitimately produces none.

Difference from nearby HRESULT values

DB_S_NONEXTROWSET emphasizes no next rowset; it can indicate no more result for the current retrieval request.

Practical validation scenario

A batch performs an update followed by a select. The consumer sees a no-rowset result for the update, advances, and then retrieves the select rowset without treating the first status as failure.

Developer and administrator guidance

References

• Microsoft: OLE DB return codes
• Microsoft: OLE DB Driver return codes
• Microsoft: OLE DB error records