How to fix the Oracle error ORA-39309: Cannot alter tablespace between bigfile and smallfile.?

In this post, you’ll learn more about the Oracle ErrorORA-39309: Cannot alter tablespace between bigfile and smallfile. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-39309: Cannot alter tablespace between bigfile and smallfile.

Reason for the Error ORA-39309: Cannot alter tablespace between bigfile and smallfile.

DBMS_METADATA_DIFF was comparing two tablespaces, one bigfile, one smallfile. There is no SQL ALTER statement to change a tablespace from smallfile to bigfile or vice versa.

How to fix the Error ORA-39309: Cannot alter tablespace between bigfile and smallfile. ?

You can fix this error in Oracle by following the below steps

The difference cannot be eliminated with an SQL ALTER statement.