Oracle数据库执行慢问题排查详细过程

SELECT UPPER(F.TABLESPACE_NAME) "表空间名",
D.TOT_GROOTTE_MB "表空间大小(M)",
D.TOT_GROOTTE_MB - F.TOTAL_BYTES "已使用空间(M)",
TO_CHAR(ROUND((D.TOT_GROOTTE_MB - F.TOTAL_BYTES) / D.TOT_GROOTTE_MB * 100, 2), '990.99') || '%' "使用比",
F.TOTAL_BYTES "空闲空间(M)",
F.MAX_BYTES "最大块(M)"
FROM (SELECT TABLESPACE_NAME,
        ROUND(SUM(BYTES) / (1024 * 1024), 2) TOTAL_BYTES,
        ROUND(MAX(BYTES) / (1024 * 1024), 2) MAX_BYTES 　　
        FROM SYS.DBA_FREE_SPACE 　　
        GROUP BY TABLESPACE_NAME) F,
(SELECT DD.TABLESPACE_NAME,
           ROUND(SUM(DD.BYTES) / (1024 * 1024), 2) TOT_GROOTTE_MB 　　
           FROM SYS.DBA_DATA_FILES DD 　　
           GROUP BY DD.TABLESPACE_NAME) D
WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME
--and F.TABLESPACE_NAME = '<tablespace>'
ORDER BY 1;

SELECT SESS.SID,
       SESS.SERIAL#,
       LO.ORACLE_USERNAME,
       LO.OS_USER_NAME,
       AO.OBJECT_NAME,
       LO.LOCKED_MODE
  FROM V$LOCKED_OBJECT LO, DBA_OBJECTS AO, V$SESSION SESS
 WHERE AO.OBJECT_ID = LO.OBJECT_ID
   AND LO.SESSION_ID = SESS.SID;

SELECT (SELECT USERNAME FROM V$SESSION WHERE SID = A.SID) BLOCKER,
       A.SID,
       'IS BLOCKING',
       (SELECT USERNAME FROM V$SESSION WHERE SID = B.SID) BLOCKEE,
       B.SID
  FROM V$LOCK A, V$LOCK B
 WHERE A.BLOCK = 1
   AND B.REQUEST > 0
   AND A.ID1 = B.ID1
   AND A.ID2 = B.ID2;

ALTER SYSTEM KILL SESSION 'SID,SERIAL#';

SELECT A.SID,
       SPID,
       STATUS,
       SUBSTR(A.PROGRAM, 1, 40) PROG,
       A.TERMINAL,
       OSUSER,
       VALUE / 60 / 100 VALUE
  FROM V$SESSION A, V$PROCESS B, V$SESSTAT C
 WHERE C.STATISTIC# = 12
   AND C.SID = A.SID
   AND A.PADDR = B.ADDR 
   -- AND STATUS = 'ACTIVE'  
 ORDER BY VALUE DESC;

SELECT OSUSER, USERNAME, SQL_TEXT, ADDRESS, HASH_VALUE
FROM V$SESSION A, V$SQLTEXT B
WHERE A.SQL_ADDRESS = B.ADDRESS
--AND USERNAME = 'I_INFO' 
ORDER BY ADDRESS, PIECE;

SELECT HASH_VALUE,
       BUFFER_GETS,
       DISK_READS,
       EXECUTIONS,
       PARSE_CALLS,
       CPU_TIME
  FROM V$SQLAREA
 WHERE HASH_VALUE = 1977390476
   AND ADDRESS = HEXTORAW('000000018B83E578');

SELECT S.SID, S.USERNAME, SUM(A.WAIT_TIME + A.TIME_WAITED) TOTAL_WAIT_TIME
  FROM V$ACTIVE_SESSION_HISTORY A, V$SESSION S
 WHERE A.SAMPLE_TIME BETWEEN SYSDATE - 30 / 2880 AND SYSDATE
 GROUP BY S.SID, S.USERNAME
 ORDER BY TOTAL_WAIT_TIME DESC;

SELECT A.PROGRAM,
       A.SESSION_ID,
       A.USER_ID,
       D.USERNAME,
       S.SQL_TEXT,
       SUM(A.WAIT_TIME + A.TIME_WAITED) TOTAL_WAIT_TIME
  FROM V$ACTIVE_SESSION_HISTORY A, V$SQLAREA S, DBA_USERS D
 WHERE A.SAMPLE_TIME BETWEEN SYSDATE - 30 / 2880 AND SYSDATE
   AND A.SQL_ID = S.SQL_ID
   AND A.USER_ID = D.USER_ID
 GROUP BY A.PROGRAM, A.SESSION_ID, A.USER_ID, S.SQL_TEXT, D.USERNAME;