What does Ora 12528 mean in Oracle 10g?
The ORA-12528 is a new error which has begun with Oracle 10g. Restarting the Oracle instance can solve transient ORA-12528 errors. Typically (in Oracle 9i and above), when you “shutdown” an Oracle database, that process “unregisters” the database with the LISTENER. Then when you “startup” the database, it “registers” with the LISTENER.
Why do I get an ora-12528 TNS error?
If the “unregister” did not complete properly, then when you go to “startup” the next time, since the LISTENER did not unregister the instance, you receive the error, “ORA-12528: TNS:listener: all appropriate instances are blocking new connections” since an “appropriate” instance is already running.
Why is my database not mounted in Oracle?
When I try to connect to my Oracle database, I get Listener refused the connection with the following error: ORA-12528, TNS:listener: all appropriate instances are blocking new connections. Also, I’m not sure if this means anything but I checked and my database is not mounted.
Why is my Ora file not connecting to the database?
The way you are connecting to the database (connection type “basic”) isn’t using your tnsnames.ora file at all. It is using a basic JDBC connect string – which is fine. That said, the error indicates that the database “xe” hasn’t registered with the listener, meaning that the database itself probably isn’t running at all.
When do you get this error in Oracle?
Copyright (c) 1982, 2006, Oracle. All Rights Reserved. When do you get this error? You might get this error if you encounter with Connections via the listener to an instance that is in RESTRICTED status or in NO MOUNT status. The lsnrctl services output will show that the service handler for this instance is in state: BLOCKED or RESTRICTED.
How to fix stack overflow in Oracle Database?
One method that should resolve this problem is to restart (bounce) the LISTENER: Make sure all parameters are set. Thanks for contributing an answer to Stack Overflow!