July 2019 archive

ORA-01173 Opening PDB in Upgrade Mode

I am working on upgrading a Multitenant environment from Oracle 12.1.0.2 to Oracle 19c. I have 40 PDBs supporting all sorts of dev and test environments. We typically upgrade a few dev databases first and then follow with test databases before upgrading production. When production is upgraded, we like to keep a few dev databases …

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