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DB_E_BADBINDINFO
Exact value and interpretation
DB_E_BADBINDINFO has the unsigned 32-bit value 2147749384 (0x80040E08) and the signed representation -2147217912. AllStat defines the result as “Binding information is invalid”. In the concrete failure represented here, IAccessor::CreateAccessor or a data-transfer method receives invalid binding information.
The high bit is set for it, so it is a failure HRESULT rather than a success or informational status. Its facility field is 4 (FACILITY_ITF) and its low code is 3592 (0x0E08). Those bit fields place this result in an interface-defined family, but they do not reveal the provider, object identity, method, rowset generation or command state that produced it.
OLE DB contract boundary
This result must be interpreted against this contract: OLE DB accessors describe how columns or parameters map to a consumer buffer; an HACCESSOR is object-scoped, reference-counted and inseparable from its DBBINDING layout, bound parts, data types, offsets and ownership rules.
Start with the command or rowset that created the accessor and the consumer buffer passed to the failing method when investigating this result. Preserve it before ADO, ATL,.NET, a database abstraction layer or an application exception replaces it with a generic message; the exact interface and method matter because one OLE DB object can expose several contracts with different preconditions.
Diagnostic sequence
- Capture this result immediately at the native OLE DB return and obtain the current OLE DB error object before another COM call replaces thread error information.
- Identify the exact stage for it: IAccessor::CreateAccessor or a data-transfer method receives invalid binding information.
- compare the live command, rowset, accessor or schema state with the metadata and properties actually granted by the provider.
- inspect per-binding, per-property, per-row or per-record statuses whenever the method supplies them; the aggregate result may not identify the rejected element.
- reproduce the issue with the smallest command, rowset or definition operation that preserves the same contract boundary.
- apply one evidence-backed correction, then verify that the operation succeeds and does not merely change into a nearby HRESULT.
Specific conditions that produce it
- Cause 1 for it: a DBBINDING ordinal does not exist for the command or rowset.
- Cause 2 for it: offsets, lengths or bound parts do not fit the consumer buffer layout.
- Cause 3 for it: the requested type, memory ownership or object binding conflicts with the provider contract.
Evidence to collect before changing the system
A useful it record includes provider CLSID and version, process architecture, interface and method, COM apartment and thread, object correlation ID, transaction state, and the first preceding HRESULT. When it involves parameter values, row contents, connection-specific identifiers and long-data buffers, record types, lengths, hashes or redacted identifiers instead of secrets or full business data.
- Evidence 1 for it: the complete DBBINDING array and row-buffer size.
- Evidence 2 for it: column or parameter metadata used to construct each binding.
- Evidence 3 for it: per-binding DBBINDSTATUS values returned by CreateAccessor.
Corrective actions
- Action 1 for it: rebuild bindings from current metadata rather than cached ordinals.
- Action 2 for it: validate offsets, alignment, parts and maximum lengths before CreateAccessor.
- Action 3 for it: handle partial binding failures by inspecting every DBBINDSTATUS entry.
Retry and recovery policy
Retry rule for it: retry after correcting the binding description and creating a new accessor. A safe it retry must use a changed input, object generation, provider capability or state transition. If the call returning it could have created, updated, deleted or copied data, determine partial completion before replaying it.
Use bounded retries and preserve cancellation. Configuration and contract failures should normally fail fast; concurrency, resource or transient state failures may justify retry only after their stated precondition changes.
Difference from related HRESULT values
DB_E_BADACCESSORHANDLE rejects an invalid accessor handle, while it rejects the binding definition used to create or apply an accessor. Keep these outcomes separate in telemetry and user-facing remediation because it requires a different next action.
Practical incident
A schema change reorders columns but a consumer reuses hard-coded ordinals and offsets; regenerating DBBINDING entries removes it. The diagnostic value comes from retaining it together with the failing interface and object state, not from reducing every provider result to “database error”.
Implementation guidance
Code handling it should release OLE DB resources in ownership order, preserve every provider error record, and log granted properties rather than only requested properties. When handling it, handles such as HACCESSOR, HROW, HCHAPTER and provider-specific region tokens must never be treated as portable integers across object lifetimes.
When it crosses an abstraction boundary, attach a stable correlation ID and structured fields for the native HRESULT, provider source, interface IID, method, object generation and operation phase. Do not log passwords, access tokens, complete SQL text or unrestricted row values merely to make the event easier to search.
Official Microsoft references
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