oracle top 10 sql
Top 10 by Buffer Gets:
set linesize 100
set pagesize 100
SELECT * FROM
(SELECT substr(sql_text,1,40) sql,
buffer_gets, executions, buffer_gets/executions "Gets/Exec",
hash_value,address
FROM V$SQLAREA
WHERE buffer_gets > 10000
ORDER BY buffer_gets DESC)
WHERE rownum <= 10
Top 10 by Physical Reads:
set linesize 100
set pagesize 100
SELECT * FROM
(SELECT substr(sql_text,1,40) sql,
disk_reads, executions, disk_reads/executions "Reads/Exec",
hash_value,address
FROM V$SQLAREA
WHERE disk_reads > 1000
ORDER BY disk_reads DESC)
WHERE rownum <= 10;
Top 10 by Executions:
set linesize 100
set pagesize 100
SELECT * FROM
(SELECT substr(sql_text,1,40) sql,
executions, rows_processed, rows_processed/executions "Rows/Exec",
hash_value,address
FROM V$SQLAREA
WHERE executions > 100
ORDER BY executions DESC)
WHERE rownum <= 10
Top 10 by Parse Calls:
set linesize 100
set pagesize 100
SELECT * FROM
(SELECT substr(sql_text,1,40) sql,
parse_calls, executions, hash_value,address
FROM V$SQLAREA
WHERE parse_calls > 1000
ORDER BY parse_calls DESC)
WHERE rownum <= 10
Top 10 by Sharable Memory:
set linesize 100
set pagesize 100
SELECT * FROM
(SELECT substr(sql_text,1,40) sql,
sharable_mem, executions, hash_value,address
FROM V$SQLAREA
WHERE sharable_mem > 1048576
ORDER BY sharable_mem DESC)
WHERE rownum <= 10;
Top 10 by Version Count:
set linesize 100
set pagesize 100
SELECT * FROM
(SELECT substr(sql_text,1,40) sql,
version_count, executions, hash_value,address
FROM V$SQLAREA
WHERE version_count > 20
ORDER BY version_count DESC)
WHERE rownum <= 10
Top 10 by CPU usage:
select * from
(select sql_text,
round(cpu_time/1000000) cpu_time,
round(elapsed_time/1000000) elapsed_time,
disk_reads,
buffer_gets,
rows_processed
from v$sqlarea
order by cpu_time desc, disk_reads desc )
where rownum < 10;
Top 10 for Running Time:
select * from
(select t.sql_fulltext,
(t.last_active_time-to_date(t.first_load_time,'yyyy-mm-dd hh24:mi:ss'))*24*60
,disk_reads,buffer_gets,rows_processed,
t.last_active_time,t.last_load_time,t.first_load_time
from v$sqlarea t order by t.first_load_time desc)
where rownum < 10;