玩樂生活部落格

正在執行的
SQL> select a.username, a.sid,b.SQL_TEXT, b.SQL_FULLTEXT from v$session a, v$sqlarea b where a.sql_address = b.address;

查看某一時段執行過的SQL

select b.SQL_TEXT,b.FIRST_LOAD_TIME,b.SQL_FULLTEXT from v$sqlarea b where b.FIRST_LOAD_TIME between '2022-11-03/10:24:47' and '2022-11-03/12:24:47' order by b.FIRST_LOAD_TIME;

查找前十條性能差的SQL

SELECT * FROM (select PARSING_USER_ID,EXECUTIONS,SORTS, COMMAND_TYPE,DISK_READS,sql_text FROM v$sqlarea order BY disk_reads DESC )where ROWNUM<10;