ORA-01502: index 'string.string' or partition of such index is in unusable state

ORA-01502: index 'string.string' or partition of such index is in unusable state


Cause:


An attempt has been made to access an index or index partition that has been marked unusable by a direct load or by a DDL operation



Action:


DROP the specified index, or REBUILD the specified index, or REBUILD the unusable index partition