Oracle Rac crsctl and srvctl commands

To find the oracle database redo logs and switches per day

Find the CPU usage by session

To check the Library Cache Lock contention

Oracle 10 Largest Objects in Database

Oracle Database Size

Step by Step Configuring Dataguard on Different Operating Systems (Heterogeneous)

Show the top 10 longest-active user sessions

Currently Oracle Active Sessions

Check Oracle ACTIVE and INACTIVE Sessions