ORA-25190 Error Code Description:

Error	ORA-25190
Description	an index-organized table maintenance operation may not be combined with other operations
Cause	ALTER TABLE statement attempted to combine an index-organized table maintenance operation (e.g. changing physical attributes) with some other operation (e.g. ADD constraint) which is illegal
Action	Ensure that a index-organized table maintenance operation is the sole operation specified in ALTER TABLE statement;