查询Oracle正在执行和执行过的SQL语句

查询Oracle正在执行和执行过的SQL语句

select sql_text,last_load_time from v$sql order by last_load_time desc;

SELECT sql_text, last_load_time FROM v$sql WHERE last_load_time IS NOT NULL and sql_text like 'select%' ORDER BY last_load_time DESC;

SELECT sql_text, last_load_time FROM v$sql WHERE last_load_time IS NOT NULL and sql_text like 'update%' ORDER BY last_load_time DESC;

SELECT sql_text, last_load_time FROM v$sql WHERE last_load_time IS NOT NULL and last_load_time like' 14-06-09%' ORDER BY last_load_time DESC;

---正在执行的

select a.username, a.sid,b.SQL_TEXT, b.SQL_FULLTEXT
from v$session a, v$sqlarea b
where a.sql_address = b.address

---执行过的

select b.SQL_TEXT,b.FIRST_LOAD_TIME,b.SQL_FULLTEXT
from v$sqlarea b
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

（此方法好处可以查看某一时间段执行过的sql，并且 SQL_FULLTEXT 包含了完整的 sql 语句）

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

查找前十条性能差的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 ;

查看占io较大的正在运行的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

编辑注：LAST_ACTIVE_TIME 最后一次执行时间，同样的预编译SQL语句只有一条记录，每次更新会变更该时间，可以最为一个关键检索条件

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