Check the Patch Applied to the Oracle Database

You can use Oracle OPatch utility to check all the Oracle Patches applied in Oracle database. opatch utility is located under $ORACLE_HOME/OPatch directory. Run the opatch lsinventory command to get the list of interim patches applied. 1. Listing Applied Patches 2. Using opatch lsinventory 3. To get information on particular patch ID/ Check patch is … Read more

Oracle Clusterware Startup Sequence

What is Oracle Clusterware – RAC ? Oracle Clusterware enables servers to communicate with each other, so that they appear to function as a collective unit. This combination of servers is commonly known as a “cluster”. Oracle Real Application Clusters known as Oracle RAC uses Oracle Clusterware as the infrastructure that binds multiple nodes that … Read more