一共3个step；
step1:在sql执行时，增加hint： /*+gather_plan_statistics*/
step2：查出sql的sql id: select * from v$sql s where s.SQL_TEXT like 'SELECT /*+monitor*/TT.*%'
step3:执行下面sql查看真实执行计划；
SELECT
sp.last_starts AS "starts",
sp.last_output_rows AS "rows",
round(sp.last_elapsed_time / 1000000, 2) AS TIME,
sp.last_cr_buffer_gets bf,
sp.depth d,
rtrim(lpad(' ', 2 * (depth - 1)) || operation ||
decode(options, NULL, '', ' ' || options)) "Explain plan",
decode(id,
0,
'------------- ',
substr(decode(substr(object_name, 1, 7),
'SYS_LE_',
NULL,
object_name) || ' ',
1,
30)) AS "object",
免责声明：本站发布的内容（图片、视频和文字）以原创、转载和分享为主，文章观点不代表本网站立场，如果涉及侵权请联系站长邮箱：is@yisu.com进行举报，并提供相关证据，一经查实，将立刻删除涉嫌侵权内容。
