Oracle Error ORA-25186: INCLUDING clause specified for index-organized table without OVERFLOW

Oracle Error Message

ORA-25186: INCLUDING clause specified for index-organized table without OVERFLOW

Reason for the Error

INCLUDING clause of a CREATE TABLE is an valid option only for index-organized tables with OVERFLOW clause (at creation time) or if an OVERFLOW segment already exists (at ALTER time).

Solution

Specify OVERFLOW clause for the index-organized table : For ALTER, perform ADD OVERFLOW first.