How to fix the Oracle error ORA-14554: cannot perform requested operation during database startup?

In this post, you’ll learn more about the Oracle ErrorORA-14554: cannot perform requested operation during database startup with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-14554: cannot perform requested operation during database startup

Reason for the Error ORA-14554: cannot perform requested operation during database startup

Requested operation requires the Cost Based Optimizer(CBO) which is not available during database startup. Features like partitioning, IOTs, grouping sets, and flashback cursor require the CBO.

How to fix the Error ORA-14554: cannot perform requested operation during database startup ?

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

Retry the query after the database is open.