| V$PROCESS | Contains information about the currently active processes | 
| V$SESSION | Lists session information for each current session | 
| V$SESS_IO | Contains I/O statistics for each user session | 
| V$SESSION_LONGOPS | Displays the status of various operations that run for longer than 6 seconds (in absolute time). These operations currently include many backup and recovery functions, statistics gathering, and query execution. More operations are added for every Oracle Database release. | 
| V$SESSION_WAIT | Displays the current or last wait for each session | 
| V$SESSION_WAIT_HISTORY | Lists the last ten wait events for each active session | 
| V$WAIT_CHAINS | Displays information about blocked sessions | 
| V$SYSSTAT | Contains session statistics | 
| V$RESOURCE_LIMIT | Provides information about current and maximum global resource utilization for some system resources | 
| V$SQLAREA | Contains statistics about shared SQL areas. Contains one row for each SQL string. Provides statistics about SQL statements that are in memory, parsed, and ready for execution |