--http://www.cnblogs.com/Invokerr/p/7084786.html
SELECT ELAPSED_TIME,LAST_ACTIVE_TIME,EXECUTIONS , DISK_READS, BUFFER_GETS,
ROUND((BUFFER_GETS-DISK_READS)/BUFFER_GETS,2) Hit_radio,
ROUND(DISK_READS/EXECUTIONS,2) Reads_per_run, SQL_TEXT
FROM V$SQLAREA
WHERE EXECUTIONS>0
AND BUFFER_GETS > 0
AND (BUFFER_GETS-DISK_READS)/BUFFER_GETS < 0.8
and SQL_TEXT like '%htjs%'
ORDER BY 5 DESC;
有时候执行的oracle,sql语句要查看下性能情况,可以用这个进行下简单计算和统计
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转载自my.oschina.net/u/1052786/blog/1535984
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