oracle 查找執行過的sql

---正在執行的

select a.username, a.sid,b.SQL_TEXT, b.SQL_FULLTEXT

from v$session a, v$sqlarea b

where a.sql_address = b.address

---類似的sql文本

select b.SQL_TEXT,b.FIRST_LOAD_TIME,b.SQL_FULLTEXT

from v$sqlarea b

where b.sql_text like 'create%' order by b.FIRST_LOAD_TIME

---執行過的在某一個時間範圍内的

where b.FIRST_LOAD_TIME between '2009-10-15/09:24:47' and

'2009-10-15/09:24:47' order by b.FIRST_LOAD_TIME

（此方法好處可以檢視某一時間段執行過的sql，并且 SQL_FULLTEXT 包含了完整的 sql 語句）

其他

select OSUSER,PROGRAM,USERNAME,SCHEMANAME,B.Cpu_Time,STATUS,B.SQL_TEXT

from V$SESSION A LEFT JOIN V$SQL B ON A.SQL_ADDRESS=B.ADDRESS AND A.SQL_HASH_VALUE=B.HASH_VALUE order by b.cpu_time desc

select address, sql_text, piece

from v$session, v$sqltext

where address = sql_address

-- and machine = < you machine name >

order by address, piece

查找前十條性能差的sql.

SELECT * FROM (select PARSING_USER_ID,EXECUTIONS,SORTS,

COMMAND_TYPE,DISK_READS,sql_text FROM v$sqlarea

order BY disk_reads DESC )where ROWNUM<10 ;

檢視占io較大的正在運作的session

SELECT se.sid,se.serial#,pr.SPID,se.username,se.status,

se.terminal,se.program,se.MODULE,、se.sql_address,st.event,st.

p1text,si.physical_reads,

si.block_changes FROM v$session se,v$session_wait st,

v$sess_io si,v$process pr WHERE st.sid=se.sid AND st.

sid=si.sid AND se.PADDR=pr.ADDR AND se.sid>6 AND st.

wait_time=0 AND st.event NOT LIKE '%SQL%' ORDER BY physical_reads DESC