ORA-14134:

indexes cannot use both DESC and REVERSE

Cause :

An attempt was made to make a reverse index with some index columns marked DESC.

Action :

Do not use DESC in reverse indexes. The rule-based optimizer can scan indexes backwards, which allows a normal reverse index to simulate a reverse index with columns marked DESC.

Some of the common Oracle error codes

Oracle Database Error Messages

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- Tips to resolve Oracle Datbase Errors.