查詢執行最慢的sql

select *

from (select sa.SQL_TEXT,

sa.SQL_FULLTEXT,

sa.EXECUTIONS "執行次數",

round(sa.ELAPSED_TIME / 1000000, 2) "總執行時間",

round(sa.ELAPSED_TIME / 1000000 / sa.EXECUTIONS, 2) "平均執行時間",

sa.COMMAND_TYPE,

sa.PARSING_USER_ID "使用者ID",

u.username "使用者名稱",

sa.HASH_VALUE

from v$sqlarea sa

left join all_users u

on sa.PARSING_USER_ID = u.user_id

where sa.EXECUTIONS > 0

order by (sa.ELAPSED_TIME / sa.EXECUTIONS) desc)

where rownum <= 50;

查詢次數最多的 sql

select *

from (select s.SQL_TEXT,

s.EXECUTIONS "執行次數",

s.PARSING_USER_ID "使用者名稱",

rank() over(order by EXECUTIONS desc) EXEC_RANK

from v$sql s

left join all_users u

on u.USER_ID = s.PARSING_USER_ID) t

where exec_rank <= 100;