利用SQL语句实现数据库性能监控
om v$latch where name IN ('redo allocation','redo copy');⑻ 监控当前数据库谁在运行什么SQL语句select osuser, username, sql_text from v$session a,v$sqltext b where a.sql_address=b.address order byaddress, piece;⑼ 监控碎片程度select tablespace_name, count (tablespace_name) fromdba_free_space group by tablespace_namen having count(tablespace_name)>10
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