• Oracle查看执⾏过的SQL


    Oracle查看执⾏过的SQL
    ORACLE中可以通过v$session表查看当前有效的session信息,并且可以通过v$session的sql_id或sql_address通过关联查询v$sql查看当前正在执⾏的sql语句;
    如果想查看session近期执⾏的sql语句,可以通过v$active_session_history表中的sql_id查看近期历史执⾏的sql语句,要求数据库的liberary没有被fresh。

    1. SELECT b.sql_text, --content of SQL
    2. a.machine, --which machine run this code
    3. a.username, a.module, -- the method to run this SQL
    4. c.sofar / totalwork * 100, --conplete percent
    5. c.elapsed_seconds, --run time
    6. c.time_remaining --remain to run time
    7. FROM v$session a, v$sqlarea b, v$session_longops c
    8. WHERE a.sql_hash_value = b.hash_value(+) AND a.SID = c.SID(+)
    9. AND a.serial# = c.serial#(+)
    10. --AND a.sid=139
      Oracle 最近执⾏过的sql语句:
    11. SELECT sql_text, last_load_time
    12. FROM v$sql
    13. WHERE last_load_time IS NOT NULL
    14. ORDER BY last_load_time DESC
      其它,
      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;
      监控concurrent 正在执⾏的sql
    15. SELECT a.sid, a.serial#, b.sql_text
    16. FROM v$session a, v$sqltext b
    17. WHERE a.sql_address = b.address
    18. --AND a.sid = <...>
    19. ORDER BY b.piece
      正在执⾏的
    20. SELECT a.username, a.sid,b.SQL_TEXT, b.SQL_FULLTEXT
    21. FROM v$session a, v$sqlarea b
    22. where a.sql_address = b.address
      执⾏过的
    23. SELECT b.SQL_TEXT,b.FIRST_LOAD_TIME,b.SQL_FULLTEXT
    24. FROM v$sqlarea b
    25. WHERE b.FIRST_LOAD_TIME between '2009-10-15/09:24:47' and
    26. '2009-10-15/09:24:47' order by b.FIRST_LOAD_TIME
      (此⽅法好处可以查看某⼀时间段执⾏过的sql,并且 SQL_FULLTEXT 包含了完整的 sql 语句)
      其他
    27. SELECT OSUSER,PROGRAM,USERNAME,SCHEMANAME,B.Cpu_Time,STATUS,B.SQL_TEXT
    28. FROM V$SESSION A LEFT JOIN V$SQL B ON A.SQL_ADDRESS=B.ADDRESS AND A.SQL_HASH_VALUE=B.HASH_VALUE ORDER BY b.cpu_time desc
    29. SELECT address, sql_text, piece
    30. FROM v$session, v$sqltext
    31. WHERE address = sql_address
    32. -- and machine = < you machine name >
    33. ORDER BY address, piece
      查找前⼗条性能差的sql
    34. SELECT * FROM (SELECT PARSING_USER_ID,EXECUTIONS,SORTS,
    35. COMMAND_TYPE,DISK_READS,sql_text FROM v$sqlarea
    36. ORDER BY disk_reads DESC )WHERE ROWNUM<10 ;
      查看占io较⼤的正在运⾏的session
    37. SELECT se.sid,se.serial#,pr.SPID,se.username,se.status,
    38. se.terminal,se.program,se.MODULE,se.sql_address,st.event,st.
    39. p1text,si.physical_reads,
    40. si.block_changes FROM v$session se,v$session_wait st,
    41. v$sess_io si,v$process pr WHERE st.sid=se.sid AND st.
    42. sid=si.sid AND se.PADDR=pr.ADDR AND se.sid>6 AND st.
    43. wait_time=0 AND st.event NOT LIKE '%SQL%' ORDER BY physical_reads DESC 以sysdba登录
      sqlplus / as sysdba;
      执⾏如下sql查看最近3天执⾏的delete和truncate操作
      SELECT c.username,
      a.program,
      b.sql_text,
      b.command_type,
      a.sample_time
      FROM dba_hist_active_sess_history a
      JOIN dba_hist_sqltext b
      ON a.sql_id = b.sql_id
      JOIN dba_users c
      ON a.user_id = c.user_id
      WHERE a.sample_time BETWEEN SYSDATE - 3 AND SYSDATE
      AND b.command_type IN (7, 85)
      ORDER BY a.sample_time DESC;
      搜出结果还算有⽤,虽然都是业务删除,记录下
      --查询Oracle正在执⾏的sql语句及执⾏该语句的⽤户
      SELECT b.sid oracleID,
      b.username 登录Oracle⽤户名,
      b.serial#,
      spid 操作系统ID,
      paddr,
      sql_text 正在执⾏的SQL,
      b.machine 计算机名
      FROM v$process a, v$session b, v$sqlarea c
      WHERE a.addr = b.paddr
      AND b.sql_hash_value = c.hash_value
      --查看正在执⾏sql的发起者的发放程序
      SELECT OSUSER 电脑登录⾝份,
      PROGRAM 发起请求的程序,
      USERNAME 登录系统的⽤户名,
      SCHEMANAME,
      B.Cpu_Time 花费cpu的时间,
      STATUS,
      B.SQL_TEXT 执⾏的sql
      FROM V$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
      --查出oracle当前的被锁对象
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  • 原文地址:https://www.cnblogs.com/yclizq/p/16578527.html
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