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DB_E_RESOURCELOCKED
Meaning
Windows documents DB_E_RESOURCELOCKED as “OLE DB object represented by this URL is locked by one or more other processes”. In this case, the object represented by the URL is locked by another process or incompatible owner.
Evidence to collect
A useful diagnostic event for this result records provider CLSID and version, process architecture, interface IID and method, object correlation ID, transaction state and the immediately preceding HRESULT. When recording diagnostic data involving URLs containing credentials, tenant paths and remote object names, use types, lengths, hashes or redacted identifiers rather than secrets or complete business data.
- Evidence 1: normalized URL and requested access mode.
- Evidence 2: lock owner or lease metadata when available.
- Evidence 3: open handles and process lifetime around the resource.
Relevant contract
Investigation of this result should start with the binder or session, normalized URL, requested GUID/object type and DBBINDURLSTATUS result.
Conditions that specifically lead to it
- Cause 1: another writer holds an exclusive resource lock.
- Cause 2: a stale process still owns an open row or stream.
- Cause 3: the provider maps a server-side lease or checkout to the URL.
Diagnostic sequence
- Identify the exact failing stage: the object represented by the URL is locked by another process or incompatible owner.
Corrective actions
- Action 1: release local objects before assuming an external conflict.
- Action 2: coordinate through provider locking or checkout APIs.
- Action 3: use bounded backoff only when lock ownership is transient.
Practical scenario
An editor crashes while holding a provider lease; lease expiry and state refresh allow a later write to proceed.
Retry and recovery
Retry rule: retry after the conflicting lock has been released and the resource generation revalidated.
Difference from nearby HRESULT values
DB_E_READONLY means the object cannot be written by contract, while DB_E_RESOURCELOCKED means current lock state prevents access.
Official Microsoft references
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