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DB_E_BADCONSTRAINTID
Meaning
Windows documents DB_E_BADCONSTRAINTID as “Constraint ID is invalid”. In this case, a constraint operation receives a DBID invalid for the provider constraint namespace.
Relevant contract
OLE DB DDL interfaces identify indexes, commands and constraints with provider-scoped DBIDs. Constraint descriptors also carry type, column arrays, match behavior, deferrability and update/delete rules that must agree as one structure.
Investigation of this result should start with the session performing DDL, target table metadata and the exact DBID or DBCONSTRAINTDESC supplied.
Diagnostic sequence
- Identify the exact failing stage: a constraint operation receives a DBID invalid for the provider constraint namespace.
Conditions that specifically lead to it
- Cause 1: the DBID kind is unsupported.
- Cause 2: the constraint name violates identifier rules.
- Cause 3: an ID from another table or catalog is reused.
Evidence to collect
A useful diagnostic event 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 catalog names, schema names, object identifiers and deployment definitions, use types, lengths, hashes or redacted identifiers rather than secrets or complete business data.
- Evidence 1: complete DBID and target table.
- Evidence 2: provider identifier rules.
- Evidence 3: current TABLE_CONSTRAINTS metadata.
Corrective actions
- Action 1: construct constraint IDs using provider-supported forms.
- Action 2: resolve IDs from current schema metadata.
- Action 3: scope cached IDs by catalog, schema and table.
Retry and recovery
Retry rule: retry after supplying a syntactically valid constraint DBID.
Difference from nearby HRESULT values
DB_E_NOCONSTRAINT means a valid ID is absent, while DB_E_BADCONSTRAINTID means the identifier is invalid.
Practical scenario
A migration reuses a constraint ID from another schema without qualification; resolving the target-scoped ID prevents it. Keeping it with the method and object state makes this scenario diagnosable instead of reducing it to “database error”.
Official Microsoft references
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