Tag Archives: nodes

How To Downgrade Oracle 19c Grid To 12c Grid


In the pervious article we have explained the Upgrade Grid Infrastructure 12c To 19c Oracle Now We will explain the steps for downgrade oracle 19c 2 node GRID to oracle GRID.

2 NODES – localhost1 and localhost2
Grid owner – oracle
19C ORACLE_HOME(current) – > /sharearea/crs/grid19c
12C ORACLE_HOME (old) -> /crs/app/oracle/product/grid12c

1. Check the current grid version:( check on both the nodes)

oracle@localhost1:/$ crsctl query crs softwareversion
Oracle Clusterware version on node [dbhost1] is []
oracle@localhost1:$ crsctl 
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