Invalid reference to or operation on constraint '%1'

Error constant SQLE_INVALID_CONSTRAINT_REF
ODBC 2 state S0002
ODBC 3 state 42S23
Parameter 1 Name of the constraint that cannot be used for the specified purpose.
Severity 16
SQLCODE -937
SQLSTATE 42U06
Sybase error code 13550
 Probable cause
 More information