046 Oracle执行慢的SQL

 1 -- 执行最慢的sql
 2 SELECT *
 3 FROM (SELECT sa.SQL_TEXT,
 4             sa.SQL_FULLTEXT,
 5             sa.EXECUTIONS as "exeCount",
 6             ROUND(sa.ELAPSED_TIME / 1000000, 2) as "execTimeTotal",
 7             ROUND(sa.ELAPSED_TIME / 1000000 / sa.EXECUTIONS, 2) as "execTimeAvg",
 8             sa.COMMAND_TYPE,
 9             sa.PARSING_USER_ID,
10             u.username,
11             sa.HASH_VALUE
12         FROM v$sqlarea sa
13         LEFT JOIN all_users u
14         ON  sa.PARSING_USER_ID = u.user_id
15         WHERE sa.EXECUTIONS > 0
16         ORDER BY (sa.ELAPSED_TIME / sa.EXECUTIONS) DESC)
17 WHERE rownum <= 50;