找出消耗cpu最高的进程对应的sql语句

找出消耗cpu最高的进程对应的sql语句 根据SID找ORACLE的某个进程: SQL> SELECT PRO.SPID FROM V$SESSION SES,V$PROCESS PRO WHERE SES.SID=21 AND SES.PADDR=PRO.ADDR; 监控当前数据库谁在运行什么SQL语句: SQL>SELECT OSUSER, USERNAME, SQL_TEXT FROM V$SESSION A, V$SQLTEXT B WHERE A.SQL_ADDRESS =B.ADDRESS ORDER BY ADDRESS, PIECE; 如何查看数据库中某用户，正在运行什么SQL语句 SQL>SELECT SQL_TEXT FROM V$SQLTEXT T, V$SESSION S WHERE T.ADDRESS=S.SQL_ADDRESS AND T.HASH_VALUE=S.SQL_HASH_VALUE AND S.MACHINE='XXXXX' OR USERNAME='WACOS'; 如何查出前台正在发出的sql语句: SQL> SELECT USER_NAME,SQL_TEXT FROM V$OPEN_CURSOR WHERE SID IN(SELECT SID FROM (SELECT SID,SERIAL# FROM V$SESSION WHERE STATUS='ACTIVE')); 查询当前所执行的SQL语句: SQL> SELECT PROGRAM ,SQL_ADDRESS FROM V$SESSION WHERE PADDR IN (SELECT ADDR FROM V$PROCESS WHERE SPID=3556); PROGRAM SQL_ADDRESS ------------------------------------------------ ---------------- SQLPLUS@CTC20 (TNS V1-V3) 000000038FCB 1A90 SQL> SELECT SQL_TEXT FROM V$SQLAREA WHERE ADDRESS='000000038FCB1A90'; 找出消耗CPU最高的进程对应的SQL语句: SET LINE 240 SET VERIFY OFF COLUMN SID FORMAT 999 COLUMN PID FORMAT 999 COLUMN S_# FORMAT 999 COLUMN USERNAME FORMAT A9 HEADING "ORA USER" COLUMN PROGRAM FORMAT A29 COLUMN SQL FORMAT A60 COLUMN OSNAME FORMAT A9 HEADING "OS USER" SELECT P.PID PID,S.SID SID,P.SPID SPID,S.USERNAME USERNAME,S.OSUSER OSNAME,P.SERIAL# S_#,P.TERMINAL,P.PROGRAM PROGRAM,P.BACKGROUND,S.STATUS,RTRIM(SUBSTR(A.SQL_TEXT, 1, 80)) SQLFROM V$PROCESS P, V$SESSION S,V$SQLAREA A WHERE P.ADDR = S.PADDR AND S.SQL_ADDRESS = A.ADDRESS (+) AND P.SPID LIKE '%&1%'; ENTER VALUE FOR 1: PID?(这里输入占用CPU最高的进程对应的PID) SET TERMOUT OFF SPOOL MAXCPU.TXT SELECT '++'||S.USERNAME USERNAME,RTRIM(REPLACE(A.SQL_TEXT,CHR(10),''))||';'FROM V$PROCESS P, V$SESSION S,V$SQLAREA A WHERE P.ADDR = S.PADDR AND S.SQL_ADDRESS = A.ADDRESS (+) AND P.SPID LIKE '%&&1%'; Enter value for 1: PID(这里输入占用CPU最高的进程对应的PID) spool off(这句放在最后执行) CPU用率最高的2条SQL语句的获取 执行:top，通过top获得CPU占用率最高的进程的pid。 SQL>SELECT SQL_TEXT,SPID,V$SESSION.PROGRAM,PROCESS FROM V$SQLAREA,V$SESSION,V$PROCESS WHERE V$SQLAREA.ADDRESS=V$SESSION.SQL_ADDRESS AND V$SQLAREA.HASH_VALUE=V$SESSION.SQL_HASH_VALUE AND V$SESSION.PADDR=V$PROCESS.ADDR AND V$PROCESS.SPID IN (PID); COL MACHINE FORMAT A30 COL PROGRAM FORMAT A40 SET LINE 200 SQL>SELECT SID,SERIAL# ,USERNAME,OSUSER,MACHINE,PROGRAM,PROCESS,TO_CHAR(LOGON_TIME,'YYYY/MM /DD HH24:MI:SS') FROM V$SESSION WHERE PADDR IN(SELECT ADDR FROM V$PROCESS WHERE SPID IN([$SPID])); SELECT SQL_TEXT FROM V$SQLTEXT_WITH_NEWLINES WHERE HASH_VALUE=(SELECT SQL_HASH_VALUE FROM V$SESSION WHERE SID=&SID) ORDER BY PIECE; 16、查看锁(lock)情况: SQL>SELECT LS.OSUSER OS_USER_NAME, LS.USERNAME USER_NAME, DECODE(LS.TYPE, 'RW','ROW WAIT ENQUEUE LOCK', 'TM','DML ENQUEUE LOCK', 'TX','TRANSACTION ENQUEUE LOCK', 'UL','USER SUPPLIED LOCK') LOCK_TYPE, O.OBJECT_NAME OBJECT, DECODE(LS.LMODE, 1,NULL, 2,'ROW SHARE', 3,'ROW EXCLUSIVE', 4,'SHARE', 5,'SHARE ROW EXCLUSIVE', 6,'EXCLUSIVE', NULL) LOCK_MODE, O.OWNER, LS.SID, LS.SERIAL# SERIAL_NUM, LS.ID1, LS.ID2 FROM SYS.DBA_OBJECTS O, (SELECT S.OSUSER, S.USERNAME, L.TYPE, L.LMODE, S.SID, S.SERIAL#, L.ID1, L.ID2 FROM V$SESSION S, V$LOCK L WHERE S.SID = L.SID) LS WHERE O.OBJECT_ID = LS.ID1 AND O.OWNER <> 'SYS' ORDER BY O.OWNER, O.OBJECT_NAME; SQL>SELECT SYS.V_$SESSION.OSUSER, SYS.V_$SESSION.MACHINE, V$LOCK.SID, SYS.V_$SESSION.SERIAL#, DECODE(V$LOCK.TYPE, 'MR','MEDIA RECOVERY', 'RT','REDO THREAD', 'UN','USER NAME', 'TX','TRANSACTION', 'TM','DML', 'UL','PL/SQL USER LOCK', 'DX','DISTRIBUTED XACTION', 'CF','CONTROL FILE', 'IS','INSTANCE STATE', 'FS','FILE SET', 'IR','INSTANCE RECOVERY', 'ST','DISK SPACE TRANSACTION', 'TS','TEMP SEGMENT', 'IV','LIBRARY CACHE INVALIDA-TION', 'LS','LOG START OR SWITCH', 'RW','ROW WAIT', 'SQ','SEQUENCE NUMBER', 'TE','EXTEND TABLE', 'TT','TEMP TABLE', 'UNKNOWN') LOCKTYPE, RTRIM(OBJECT_TYPE) || ' ' || RTRIM(OWNER) || '.' || OBJECT_NAME OBJECT_NAME, DECODE(LMODE, 0,'NONE', 1,'NULL', 2,'ROW-S', 3,'ROW-X', 4,'SHARE', 5,'S/ROW-X', 6,'EXCLUSIVE', 'UNKNOWN') LOCKMODE, DECODE(REQUEST, 0,'NONE', 1,'NULL', 2,'ROW-S', 3,'ROW-X', 4,'SHARE', 5,'S/ROW-X', 6,'EXCLUSIVE', 'UNKNOWN') REQUESTMODE, CTIME, BLOCK B FROM V$LOCK, ALL_OBJECTS, SYS.V_$SESSION WHERE V$LOCK.SID > 6 AND SYS.V_$SESSION.SID = V$LOCK.SID AND V$LOCK.ID1 = ALL_OBJECTS.OBJECT_ID; 以DBA角色, 查看当前数据库里锁的情况可以用如下SQL语句: COL OWNER FOR A12 COL OBJECT_NAME FOR A16 SELECT B.OWNER,B.OBJECT_NAME,L.SESSION_ID,L.LOCKED_MODE FROM V$LOCKED_OBJECT L, DBA_OBJECTS B WHERE B.OBJECT_ID=L.OBJECT_ID; SQL>SELECT T2.USERNAME,T2.SID,T2.SERIAL#,T2.LOGON_TIME FROM V$LOCKED_OBJECT T1,V$SESSION T2 WHERE T1.SESSION_ID=T2.SID ORDER BY T2.LOGON_TIME; SQL>SELECT SQL_ADDRESS FROM V$SESSION WHERE SID=; SQL>SELECT * FROM V$SQLTEXT WHERE ADDRESS=; SQL>SELECT COMMAND_TYPE,PIECE,SQL_TEXT FROM V$SQLTEXT WHERE ADDRESS=(SELECT SQL_ADDRESS FROM V$SESSION A WHERE SID=18); SQL>SELECT OBJECT_ID FROM V$LOCKED_OBJECT; SQL>SELECT OBJECT_NAME,OBJECT_TYPE FROM DBA_OBJECTS WHERE OBJECT_ID=''; 如果有长期出现的一列，可能是没有释放的锁。我们可以用下面SQL语句杀掉长期没有释放 非正常的锁: SQL>ALTER SYSTEM KILL SESSION 'SID,SERIAL#'; 17、查看等待(wait)情况: SQL>SELECT V$WAITSTAT.CLASS,V$WAITSTAT.COUNT COUNT, SUM(V$SYSSTAT.VALUE) SUM_VALUE FROM V$WAITSTAT,V$SYSSTAT WHERE V$SYSSTAT.NAME IN('DB BLOCK GETS','CONSISTENT GETS') GROUP BY V$WAITSTAT.CLASS,V$WAITSTAT.COUNT; 18、查看sga情况: SQL>SELECT NAME, BYTES FROM SYS.V_$SGASTAT ORDER BY NAME ASC; 19、查看catched object: SQL>SELECT OWNER,NAME,DB_LINK,NAMESPACE,TYPE,SHARABLE_MEM,LOADS, EXECUTIONS,LOCKS,PINS,KEPT FROM V$DB_OBJECT_CACHE; 20、查看V$SQLAREA: SQL>SELECT SQL_TEXT,SHARABLE_MEM,PERSISTENT_MEM,RUNTIME_MEM,SORTS, VERSION_COUNT,LOADED_VERSIONS,OPEN_VERSIONS,USERS_OPENING,EXECUTIONS, USERS_EXECUTING,LOADS,FIRST_LOAD_TIME,INVALIDATIONS,PARSE_CALLS, DISK_READS,BUFFER_GETS,ROWS_PROCESSED FROM V$SQLAREA; 21、查看object分类数量: SELECT DECODE(O.TYPE#,1,'INDEX',2,'TABLE',3,'CLUSTER',4,'VIEW',5,'SYNONYM',6, 'SEQUENCE','OTHER') OBJECT_TYPE , COUNT(*) QUANTITY FROM SYS.OBJ$ O WHERE O.TYPE# > 1 GROUP BY DECODE(O.TYPE#,1,'INDEX',2,'TABLE',3,'CLUSTER' ,4,'VIEW',5,'SYNONYM',6,'SEQUENCE','OTHER') UNION SELECT 'COLUMN', COUNT(*) FROM SYS.COL$ UNION SELECT 'DB LINK' , COUNT(*) FROM ALL_OBJECTS; 22、有关connection的相关信息: 1)查看有哪些用户连接 SELECT S.OSUSER OS_USER_NAME,DECODE(SIGN(48 - COMMAND),1,TO_CHAR(COMMAND), 'ACTION CODE #' || TO_CHAR(COMMAND))ACTION,P.PROGRAM ORACLE_PROCESS, STATUS SESSION_STATUS,S.TERMINAL TERMINAL,S.PROGRAM PROGRAM, S.USERNAME USER_NAME,S.FIXED_TABLE_SEQUENCE ACTIVITY_METER,''QUERY,0 MEMORY,0 MAX_MEMORY,0 CPU_USAGE,S.SID,S.SERIAL# SERIAL_NUM FROM V$SESSION S,V$PROCESS P WHERE S.PADDR=P.ADDR AND S.TYPE = 'USER' ORDER BY S.USERNAME, S.OSUSER; 2)根据v.sid查看对应连接的资源占用等情况 SELECT N.NAME,V.VALUE,N.CLASS,N.STATISTIC# FROM V$STATNAME N,V$SESSTAT V WHERE V.SID=18 AND V.STATISTIC# = N.STATISTIC# ORDER BY N.CLASS, N.STATISTIC#; 3)根据sid查看对应连接正在运行的sql SELECT COMMAND_TYPE,SQL_TEXT,SHARABLE_MEM, PERSISTENT_MEM,RUNTIME_MEM,SORTS,VERSION_COUNT,LOADED_VERSIONS,OPEN_VERSIONS,USERS_OPENING,EXECUTIONS, USERS_EXECUTING,LOADS,FIRST_LOAD_TIME,INVALIDATIONS,PARSE_CALLS,DISK_READS,BUFFER_GETS,ROWS_PROCESSED,SYSDATE START_TIME,SYSDATE FINISH_TIME,'>'|| ADDRESS SQL_ADDRESS, 'N' STATUS FROM V$SQLAREA WHERE ADDRESS = (SELECT SQL_ADDRESS FROM V$SESSION WHERE SID=8); 根据pid查看sql语句: SELECT SQL_TEXT FROM V$SQL WHERE ADDRESS IN (SELECT SQL_ADDRESS FROM V$SESSION WHERE SID IN (SELECT SID FROM V$SESSION WHERE PADDR IN (SELECT ADDR FROM V$PROCESS WHERE SPID=&PID)));