oracle造成系統CPU過高的檢查sql

1、 根據占用CPU高的進程號來查詢這個進程執行的SQL語句：

CPU過高的進程號：

#首先找到CPU過高的進程號
# top -bn1 是靜態找到占用最高的進程
[root@localhost ~]# top -bn1 | awk '{print $1}' | grep -A2 PID

 

SQL語句：

SELECT sql_text
FROM V$sqltext a
WHERE (a.hash_value, a.address)
IN (SELECT DECODE(sql_hash_value, 0 , prev_hash_value, sql_hash_value),
DECODE(sql_hash_value, 0 ,prev_sql_addr, sql_address)
FROM v$session b
WHERE b.paddr = (SELECT addr FROM v$process c WHERE c.spid = '&pid'))
ORDER BY piece ASC;

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ex:
SELECT sql_text 
FROM v$sqltext a 
WHERE (a.hash_value, a.address) 
IN (SELECT DECODE(sql_hash_value, 0, prev_hash_value, sql_hash_value), 
DECODE(sql_hash_value, 0, prev_sql_addr, sql_address) 
FROM v$session b 
WHERE b.paddr = (SELECT addr FROM v$process c WHERE c.spid = '31968')) 
ORDER BY piece ASC;