How to fix the Oracle error ORA-39285: Cannot alter index key compression.?

In this post, you’ll learn more about the Oracle ErrorORA-39285: Cannot alter index key compression. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-39285: Cannot alter index key compression.

Reason for the Error ORA-39285: Cannot alter index key compression.

DBMS_METADATA_DIFF was comparing two indexes with different values of key compression. There is no SQL ALTER statement to change index key compression.

How to fix the Error ORA-39285: Cannot alter index key compression. ?

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

The difference cannot be eliminated with an SQL ALTER statement.