如何查找引起高CPU的SQL

1.top命令查看

2.找出存在问题的进程信息

ps -ef | grep $PID

3.根据PID查找问题SQL

SELECT /*+ ORDERED */

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

/