SQL> select distinct wait_class#,wait_class from v$event_name order by wait_clas
s#;
WAIT_CLASS# WAIT_CLASS
----------- ----------------------------------------------------------------
0 Other
1 Application
2 Configuration
3 Administrative
4 Concurrency
5 Commit
6 Idle
7 Network
8 User I/O
9 System I/O
10 Scheduler
WAIT_CLASS# WAIT_CLASS
----------- ----------------------------------------------------------------
11 Cluster
已选择12行。
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