The following is the ORA-22340 error message, you can learn the cause and solution of the Oracle database error.

ORA-22340 cannot string type “string“.”string“. Dependent tables must be upgraded to latest version

Cause: An attempt was made to reset the version, drop or alter a type when the data in dependent table has not been upgraded to the latest version.

Solution: Use the ALTER TABLE UPGRADE INCLUDING DATA statement to upgrade the data in the dependent tables then resubmit the statement.


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