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DB_S_UNWANTEDPHASE
OLE DB consumer declines notifications for a phase
DB_S_UNWANTEDPHASE is HRESULT 265934 (0x00040ECE) from Microsoft OLE DB. AllStat describes DB_S_UNWANTEDPHASE as “Consumer does not want to receive further notification calls for this phase.” The high-order severity bit is clear, so this is a success result, but it carries more information than plain S_OK.
The notification sink requests that the provider stop sending callbacks for the current phase of an operation.
Evidence and telemetry to preserve
- For
DB_S_UNWANTEDPHASE, preserve operation, reason, and phase values. - For
DB_S_UNWANTEDPHASE, preserve sink identity. - For
DB_S_UNWANTEDPHASE, preserve callbacks before and after the return. - For
DB_S_UNWANTEDPHASE, preserve provider interpretation. - For
DB_S_UNWANTEDPHASE, preserve application state that motivated suppression.
Also record db_s_unwantedphase_operation, db_s_unwantedphase_object, db_s_unwantedphase_state_before, db_s_unwantedphase_state_after, UTC time, process and thread identifiers, and a correlation ID. For DB_S_UNWANTEDPHASE, keep secrets out of logs while retaining GUIDs, CLSIDs, media subtypes, property IDs, row identities, and hashes needed to distinguish objects.
Where this result is encountered
DB_S_UNWANTEDPHASEcan appear in IRowsetNotify-style multi-phase callbacks; record the producing interface and method rather than inferring behavior from the symbolic name alone.DB_S_UNWANTEDPHASEcan appear in consumers interested in after-event but not pre-event notifications; record the producing interface and method rather than inferring behavior from the symbolic name alone.DB_S_UNWANTEDPHASEcan appear in notification optimization in high-volume rowsets; record the producing interface and method rather than inferring behavior from the symbolic name alone.
For DB_S_UNWANTEDPHASE, the same numeric success value can be mishandled when a wrapper exposes only a Boolean. For DB_S_UNWANTEDPHASE, keep the original HRESULT until the code-specific outputs and state transition have been evaluated.
State boundary that must be proved
The central question for DB_S_UNWANTEDPHASE is whether the suppressed phase is precisely identified and skipping it does not remove validation or veto behavior the consumer relies on. For DB_S_UNWANTEDPHASE, the HRESULT alone confirms neither unrelated work nor the quality of optional outputs.
A reliable interpretation of DB_S_UNWANTEDPHASE names the exact method contract, the object generation, and the outputs that remain valid. For DB_S_UNWANTEDPHASE, this prevents a success-with-information result from being promoted to full success or demoted to a generic error.
Diagnostic sequence
- For
DB_S_UNWANTEDPHASE, capture the raw HRESULT0x00040ECEimmediately after the returning method and record whether the caller usedSUCCEEDED,FAILED, equality testing, or exception translation. - Identify the exact owner of
DB_S_UNWANTEDPHASE: interface, method, object instance, provider or filter version, thread or apartment, and operation phase. - Validate the decisive contract boundary for
DB_S_UNWANTEDPHASE: the suppressed phase is precisely identified and skipping it does not remove validation or veto behavior the consumer relies on. - For
DB_S_UNWANTEDPHASE, inspect every output parameter, count, status array, returned interface, or side effect that the method documentation associates with this success-with-information result. - Compare the observed state before and after
DB_S_UNWANTEDPHASE; do not assume that a success severity bit means every optional sub-operation completed. - For
DB_S_UNWANTEDPHASE, reproduce the smallest request with the same object state and then change only the condition identified by the evidence before repeating the operation.
Difference from nearby HRESULT values
DB_S_UNWANTEDOPERATION suppresses the operation; DB_S_UNWANTEDPHASE narrows suppression to a phase.
For DB_S_UNWANTEDPHASE, this distinction determines whether the caller should consume partial outputs, stop iteration, wait, reconfigure, notify the user, or perform no error recovery at all.
Correct handling, retry, and recovery
Honor the phase-level opt-out while keeping other phases active. Document whether the provider applies the choice to one event or the remaining lifetime of the rowset.
Retry DB_S_UNWANTEDPHASE only when the recorded state can change the documented outcome. For DB_S_UNWANTEDPHASE, repeating the same call is inappropriate for a stable end marker, cancellation, unsupported format, adjusted property, or partial result whose completed side effects have not been reconciled.
Practical validation scenario
A logging sink needs only completion notifications and opts out of intermediate progress phases. The provider reduces callback traffic while final audit events remain enabled.
The negative test should preserve the condition that produces DB_S_UNWANTEDPHASE; the recovery test should alter only that condition and verify the final state as well as the HRESULT.
Developer and administrator guidance
Code handling DB_S_UNWANTEDPHASE should test the exact documented value before a generic SUCCEEDED(hr) branch when outputs or control flow differ. Operational remediation for DB_S_UNWANTEDPHASE should target the owning COM, media, Tablet PC, or OLE DB component instead of resetting unrelated services.
A support report for DB_S_UNWANTEDPHASE should include decimal 265934, hexadecimal 0x00040ECE, the AllStat meaning, the owning API, and the first detailed status or output that explains why the method did not return ordinary S_OK.
References
- Microsoft: OLE DB return codes — official documentation relevant to
DB_S_UNWANTEDPHASE. - Microsoft: OLE DB Driver return codes — official documentation relevant to
DB_S_UNWANTEDPHASE. - Microsoft: OLE DB error records — official documentation relevant to
DB_S_UNWANTEDPHASE.
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