How to fix the Oracle error ORA-39710: only connect AS SYSDBA is allowed when OPEN in UPGRADE mode?

In this post, you’ll learn more about the Oracle ErrorORA-39710: only connect AS SYSDBA is allowed when OPEN in UPGRADE mode with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-39710: only connect AS SYSDBA is allowed when OPEN in UPGRADE mode

Reason for the Error ORA-39710: only connect AS SYSDBA is allowed when OPEN in UPGRADE mode

An attempt was made to connect to a database when the database was OPEN for UPGRADE or DOWNGRADE.

How to fix the Error ORA-39710: only connect AS SYSDBA is allowed when OPEN in UPGRADE mode ?

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

Try to connect again after the database upgrade or downgrade is complete.