How to fix the Oracle error ORA-29895: duplicate base datatype specified?

In this post, you’ll learn more about the Oracle ErrorORA-29895: duplicate base datatype specified with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-29895: duplicate base datatype specified

Reason for the Error ORA-29895: duplicate base datatype specified

User attempted to add a base datatype to an indextype with ARRAY DML which is already supported by the indextype

How to fix the Error ORA-29895: duplicate base datatype specified ?

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

Remove the duplicate base datatype and retry the command