Oracle查看逻辑读、物理读资源占用排行的SQL语句
时间:2015-02-22 22:50 来源:linux.it.net.cn 作者:IT
查看逻辑读前10的SQL：
set linesize 300;
set pagesize 300;
set long 50000;
SELECT *
FROM (
SELECT sql_fulltext AS sql, SQL_ID,buffer_gets / executions AS "Gets/Exec",buffer_gets, executions
FROM V$SQLAREA
WHERE buffer_gets > 10000
ORDER BY "Gets/Exec" DESC
)
WHERE rownum <= 10;
查看物理读前10的SQL：
set linesize 300;
set pagesize 300;
set long 50000;
SELECT *
FROM (
SELECT sql_fulltext AS sql, SQL_ID,disk_reads / executions AS "Reads/Exec",disk_reads, executions
FROM V$SQLAREA
WHERE disk_reads > 1000
ORDER BY "Reads/Exec" DESC
)
WHERE rownum <= 10;
(责任编辑：IT)
查看逻辑读前10的SQL：
set linesize 300; set pagesize 300; set long 50000; SELECT * FROM ( SELECT sql_fulltext AS sql, SQL_ID,buffer_gets / executions AS "Gets/Exec",buffer_gets, executions FROM V$SQLAREA WHERE buffer_gets > 10000 ORDER BY "Gets/Exec" DESC ) WHERE rownum <= 10;
查看物理读前10的SQL：
set linesize 300; set pagesize 300; set long 50000; SELECT * FROM ( SELECT sql_fulltext AS sql, SQL_ID,disk_reads / executions AS "Reads/Exec",disk_reads, executions FROM V$SQLAREA WHERE disk_reads > 1000 ORDER BY "Reads/Exec" DESC ) WHERE rownum <= 10; (责任编辑：IT) |