What does HRESULT 0x00040EDD (DB_S_NOROWSPECIFICCOLUMNS) mean?

DB_S_NOROWSPECIFICCOLUMNS

OLE DB row has no row-specific columns

DB_S_NOROWSPECIFICCOLUMNS is HRESULT 265949 (0x00040EDD) from Microsoft OLE DB. AllStat describes it as “Row has no row-specific columns.” The severity bit indicates a nonfailure result, but the value carries a specific condition that must not be collapsed into plain S_OK.

In the OLE DB provider and consumer contract, DB_S_NOROWSPECIFICCOLUMNS means that row has no row-specific columns. Ordinary completion must not be inferred from DB_S_NOROWSPECIFICCOLUMNS until the owning component’s state and outputs agree.

Diagnostic sequence

• Capture the raw value 0x00040EDD before wrappers, signed-decimal formatting, exceptions, or generic success handling replace DB_S_NOROWSPECIFICCOLUMNS.
• Identify the operation that returned DB_S_NOROWSPECIFICCOLUMNS, including interface or callback, component build, thread, process, and the state-machine phase.
• For DB_S_NOROWSPECIFICCOLUMNS, prove the decisive condition: the consumer distinguishes ordinary rowset columns from columns that exist only on the requested row object.
• Inspect every output, count, status array, buffer, callback, task state, media timestamp, transaction vote, or security token that remains part of the DB_S_NOROWSPECIFICCOLUMNS contract.
• Compare state immediately before and after DB_S_NOROWSPECIFICCOLUMNS; success severity does not guarantee that optional work or the caller’s intended high-level action completed.
• Reproduce DB_S_NOROWSPECIFICCOLUMNS with the smallest input that retains the same condition, then alter only the recorded cause before repeating the operation.

Where the status is encountered

• DB_S_NOROWSPECIFICCOLUMNS can be returned during OLE DB command or rowset processing; log the exact method and object state instead of interpreting the constant outside that contract.
• DB_S_NOROWSPECIFICCOLUMNS can be returned during provider metadata, binding, or update handling; log the exact method and object state instead of interpreting the constant outside that contract.
• DB_S_NOROWSPECIFICCOLUMNS can be returned during data-access wrappers that reduce HRESULT to a Boolean; log the exact method and object state instead of interpreting the constant outside that contract.

Because DB_S_NOROWSPECIFICCOLUMNS is informational, a language binding may expose it as success and hide the symbolic distinction. Keep the original HRESULT available until the code-specific branch has run.

What must be true before accepting it

For DB_S_NOROWSPECIFICCOLUMNS, verify that the consumer distinguishes ordinary rowset columns from columns that exist only on the requested row object. Only this contract check establishes that DB_S_NOROWSPECIFICCOLUMNS is safe for the caller’s next step.

The return of DB_S_NOROWSPECIFICCOLUMNS can follow observable side effects, so recovery begins with state reconciliation.

Evidence and telemetry

• For DB_S_NOROWSPECIFICCOLUMNS, preserve row URL or identity.
• For DB_S_NOROWSPECIFICCOLUMNS, preserve IColumnsInfo metadata.
• For DB_S_NOROWSPECIFICCOLUMNS, preserve row-specific versus rowset column flags.
• For DB_S_NOROWSPECIFICCOLUMNS, preserve accessor bindings.
• For DB_S_NOROWSPECIFICCOLUMNS, preserve provider and schema version.

Also record db_s_norowspecificcolumns_operation, db_s_norowspecificcolumns_state_before, db_s_norowspecificcolumns_state_after, UTC time, process and thread identifiers, component version, and a correlation ID. For privacy-safe DB_S_NOROWSPECIFICCOLUMNS diagnostics, log metadata and fingerprints instead of confidential source values.

Difference from nearby results

DB_S_COLUMNSCHANGED means the column layout changed, while DB_S_NOROWSPECIFICCOLUMNS means no special columns exist for this row.

For DB_S_NOROWSPECIFICCOLUMNS, a nearby HRESULT can change object ownership, output validity, or the permitted next method.

Correct handling and recovery

Use the rowset schema and common columns that remain available. Do not fail merely because the provider has no row-specific extension columns; do not dereference accessors that were created only for those absent columns.

Retry DB_S_NOROWSPECIFICCOLUMNS only when a documented input or state has changed. Before another call following DB_S_NOROWSPECIFICCOLUMNS, confirm that completed side effects are idempotent or reconciled.

Practical scenario

A hierarchical provider returns a row object for a leaf item. The client finds no row-specific columns, reads the shared rowset fields, and hides the extension-property panel without treating the row as corrupt.

A regression test should reproduce DB_S_NOROWSPECIFICCOLUMNS, assert the relevant outputs and state, then change only the decisive condition and verify the expected neighboring result or ordinary completion.

Developer and administrator guidance

Code should branch on DB_S_NOROWSPECIFICCOLUMNS before a generic SUCCEEDED(hr) path whenever outputs, continuation, cancellation, or recovery differ. Telemetry should retain DB_S_NOROWSPECIFICCOLUMNS, 0x00040EDD, the producing method, and a correlation ID.

For DB_S_NOROWSPECIFICCOLUMNS, document ownership of retry, cancellation, cleanup, and user messaging. Use the producing subsystem’s tools for DB_S_NOROWSPECIFICCOLUMNS rather than generic cleanup that cannot address its contract.

References

• Microsoft: OLE DB return codes — official Microsoft material used to interpret DB_S_NOROWSPECIFICCOLUMNS.
• Microsoft: OLE DB errors — official Microsoft material used to interpret DB_S_NOROWSPECIFICCOLUMNS.
• Microsoft: HRESULT values — official Microsoft material used to interpret DB_S_NOROWSPECIFICCOLUMNS.

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