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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, this result means that row has no row-specific columns. Ordinary completion must not be inferred from it until the owning component’s state and outputs agree.
Where the status is encountered
- OLE DB command or rowset processing; log the exact method and object state instead of interpreting the constant outside that contract.
- Provider metadata, binding, or update handling; log the exact method and object state instead of interpreting the constant outside that contract.
- 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 it 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
Verify that the consumer distinguishes ordinary rowset columns from columns that exist only on the requested row object. Only this contract check establishes that it is safe for the caller’s next step.
The return of it can follow observable side effects, so recovery begins with state reconciliation.
Evidence and telemetry
- preserve row URL or identity.
- preserve IColumnsInfo metadata.
- preserve row-specific versus rowset column flags.
- preserve accessor bindings.
- 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 it diagnostics, log metadata and fingerprints instead of confidential source values.
Difference from nearby results
DB_S_COLUMNSCHANGED means the column layout changed, while it means no special columns exist for this row.
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 it only when a documented input or state has changed. Before another call following it, 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 it, assert the relevant outputs and state, then change only the decisive condition and verify the expected neighboring result or ordinary completion.
References
- Microsoft: OLE DB return codes — official Microsoft material used to interpret it.
- Microsoft: OLE DB errors
- Microsoft: HRESULT values
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