linux 系統是
1)top 獲得占用cpu比較高的pid
2)通過pid 捕獲它的執行的語句
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
/
3)對捕獲的sql語句進行性能的調優
不知window系統如何獲得？
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