MySQL NDB Cluster API Developer Guide / ... / The NDB API / NDB API Errors and Error Handling / NDB Error Codes: by Type / Constraint violation
The following list enumerates allNDB errors of typeCV (Constraint violation).
- NDB error code
255
- MySQL error
HA_ERR_NO_REFERENCED_ROW
- Error message
Foreign key constraint violated: No parent row found
- NDB error code
256
- MySQL error
HA_ERR_ROW_IS_REFERENCED
- Error message
Foreign key constraint violated: Referenced row exists
- NDB error code
630
- MySQL error
HA_ERR_FOUND_DUPP_KEY
- Error message
Tuple already existed when attempting to insert
- NDB error code
839
- MySQL error
DMEC
- Error message
Illegal null attribute
- NDB error code
840
- MySQL error
DMEC
- Error message
Trying to set a NOT NULL attribute to NULL
- NDB error code
893
- MySQL error
HA_ERR_FOUND_DUPP_KEY
- Error message
Constraint violation e.g. duplicate value in unique index