Question about opatching online
I have a RAC installation with 2 nodes.
This setup has 2 Oracle DB installations. 11.2.0.4 and 12.1.0.2.
Now I need to install patch 17974457 for 12.1.0.2. installation. I want to try the online installation. There are 3 DBs in 12.1.0.2 installation.
Documentation says I have to issue the following:
opatch apply online -connectString <SID_Node1>:<Username_Node1>:<Password_Node1>:<Node1_Name>,<SID_Node2>:<Username_Node2>:<Password_Node2>:<Node2_Name>,<SID_NodeN>:<Username_NodeN>:<Password_NodeN>:<NodeN_Name>
My question is why do I need to specify DB credentials and SID? There is only 1 OH. If I apply the patch offline I do not need credentials and SID.