ORA-01034, -27101 remote connection error after upgrading database from 11g to 12c [message #677550] |
Wed, 25 September 2019 10:16 |
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rcct
Messages: 36 Registered: May 2013 Location: Ottawa, ON
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After I upgrade my database from 11.2.0.4 to 12.2.0.1, I am able to connect normally to the database on my server. However, when I try to connect remotely from Toad or SQL developer, I get the two errors. My Toad is using 12c client for connectivity. I was able to connect before I started the upgrade. Database starts up normally, no errors in alert log. Kindly advise, thanks.
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