How to fix the error ORA-00106: cannot startup/shutdown database when connected to a dispatcher?

In this post, you’ll learn more about the Oracle ErrorORA-00106: cannot startup/shutdown database when connected to a dispatcher with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-00106: cannot startup/shutdown database when connected to a dispatcher

Reason for the Error ORA-00106: cannot startup/shutdown database when connected to a dispatcher

An attempt was made to startup/shutdown database when connected to a shared server via a dispatcher.

How to fix the Error ORA-00106: cannot startup/shutdown database when connected to a dispatcher ?

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

Re-connect as user INTERNAL without going through the dispatcher. For most cases, this can be done by connect to INTERNAL without specifying a network connect string.