【Vegas原创】DBA Daily Manage(Oracle)持续更新中...

--1、文件IO统计

select TS.Name,

DF.Name File_Name,

FS.Phyblkrd Blocks_Read,

FS.Phyblkwrt Blocks_Written,

FS.Phyblkrd+FS.Phyblkwrt Total_IOs

from V$FILESTAT FS, V$DATAFILE DF,v$tablespace TS

where DF.File#=FS.File#

AND DF.ts#=TS.TS#

order by FS.Phyblkrd+FS.Phyblkwrt desc;

--2、表空间统计

SELECT upper(f.tablespace_name) "表空间名",

d.Tot_grootte_Mb "表空间大小(M)",

d.Tot_grootte_Mb - f.total_bytes "已使用空间(M)",

to_char(round((d.Tot_grootte_Mb - f.total_bytes) / d.Tot_grootte_Mb * 100,2),'990.99') "使用比",

f.total_bytes "空闲空间(M)",

f.max_bytes "最大块(M)"

FROM

(SELECT tablespace_name,

round(SUM(bytes)/(1024*1024),2) total_bytes,

round(MAX(bytes)/(1024*1024),2) max_bytes

FROM sys.dba_free_space

GROUP BY tablespace_name) f,

(SELECT dd.tablespace_name, round(SUM(dd.bytes)/(1024*1024),2) Tot_grootte_Mb

FROM sys.dba_data_files dd

GROUP BY dd.tablespace_name) d

WHERE d.tablespace_name = f.tablespace_name

ORDER BY 4 DESC

--3、查看回滚段状态

SELECT a.segment_name,b.status

FROM Dba_Rollback_Segs a,

v$rollstat b

WHERE a.segment_id=b.usn

ORDER BY 2

--4、查看哪些session正在使用哪些回滚段

/*col 回滚段名 format a10

col SID format 9990

col 用户名 format a10

col 操作程序 format a80

col status format a6 trunc*/

SELECT r.name 回滚段名,

s.sid,

s.serial#,

s.username 用户名,

s.status,

s.SQL_ADDRESS,

t.cr_get,

t.phy_io,

t.used_ublk,

t.noundo,

substr(s.program, 1, 78) 操作程序

FROM sys.v_$session s,sys.v_$transaction t,sys.v_$rollname r

WHERE t.addr = s.taddr and t.xidusn = r.usn

-- AND r.NAME IN ('ZHYZ_RBS')

ORDER BY t.cr_get,t.phy_io

--5、查看无法扩展的段

SELECT segment_name,

segment_type,

owner,

a.tablespace_name "tablespacename",

initial_extent/1024 "inital_extent(K)",

next_extent/1024 "next_extent(K)",

pct_increase,

b.bytes/1024 "tablespace max free space(K)",

b.sum_bytes/1024 "tablespace total free space(K)"

FROM dba_segments a,

(SELECT tablespace_name,MAX(bytes) bytes,SUM(bytes) sum_bytes FROM dba_free_space GROUP BY tablespace_name) b

WHERE a.tablespace_name=b.tablespace_name

AND next_extent>b.bytes

ORDER BY 4,3,1

--6、查看系统锁

SELECT A.OWNER,

A.OBJECT_NAME,

B.XIDUSN,

B.XIDSLOT,

B.XIDSQN,

B.SESSION_ID,

B.ORACLE_USERNAME,

B.OS_USER_NAME,

B.PROCESS,

B.LOCKED_MODE,

C.MACHINE,

C.STATUS,

C.SERVER,

C.SID,

C.SERIAL#,

C.PROGRAM

FROM ALL_OBJECTS A,

V$LOCKED_OBJECT B,

SYS.GV_$SESSION C

WHERE ( A.OBJECT_ID = B.OBJECT_ID )

AND (B.PROCESS = C.PROCESS )

-- AND

ORDER BY 1,2 ;

--7、查看Io较大正在运行的session

SELECT se.sid,se.serial#,pr.SPID,se.username,se.status,se.terminal,se.program,

se.MODULE,se.sql_address,st.event,st.p1text,st.p1,st.p2,st.p3,st.STATE,st.SECONDS_IN_WAIT,

si.physical_reads,si.block_changes

FROM v$session se,v$session_wait st,v$sess_io si,v$process pr

WHERE st.sid=se.sid

AND st.sid=si.sid

AND se.PADDR=pr.ADDR

AND se.sid>6

AND st.wait_time=0

AND st.event NOT LIKE '%SQL%'

ORDER BY physical_reads DESC

--8、查看正在使用临时段的session

SELECT se.username,

sid,

serial#,

sql_address,

machine,

program,

tablespace,

segtype,

contents

FROM v$session se,

v$sort_usage su

WHERE se.saddr=su.session_addr

--9、查看某一个操作系统进程的SQL

select * from v$process;

SELECT a.username,

a.machine,

a.program,

a.sid,

a.serial#,

a.status,

c.piece,

c.sql_text

FROM v$session a,

v$process b,

v$sqltext c

WHERE b.spid=1695

AND b.addr=a.paddr

AND a.sql_address=c.address(+)

ORDER BY c.piece

--10、查看enqueue锁状态

SELECT DECODE(request,0,'Holder: ','Waiter: ')||sid

sess, id1, id2, lmode, request,

type FROM

V$LOCK WHERE (id1, id2, type)

IN (SELECT id1, id2, type FROM V$LOCK WHERE request>0)

ORDER BY id1, request;

--11、找出enqueue等待的holder进程

SELECT DECODE(request,0,'Holder: ','Waiter: ')||sid

sess, id1, id2, lmode, request,

type FROM

V$LOCK WHERE (id1, id2, type)

IN (SELECT id1, id2, type FROM V$LOCK WHERE request>0)

ORDER BY id1, request;

--12、查看当前所有对象

select * from tab;

--13、查看数据文件放置的路径

col file_name format a50

select tablespace_name,file_id,bytes/1024/1024,file_name from dba_data_files order by file_id;

--14.查DG Archived log appled状态

select * from v$archived_log

where first_time > to_date('2008-11-10 12:00:00','YYYY-MM-DD HH24:Mi:SS') order by first_time

--15.查RMAN进度

select sid,serial#,context,sofar,totalwork,round(sofar/totalwork*100,2)"%_COMPLETE",last_update_time

from v$session_longops

where opname like 'RMAN%' and opname not like '%aggregate%' and totalwork!=0 and sofar<>totalwork

order by last_update_time desc

--16、记载同时存在主键和外键的关系。

select distinct c.owner,

c.table_name,

c.constraint_name,

t.column_name,

t.position,

c.constraint_type,

c.r_owner,

c.r_constraint_name,

p.table_name,

p.column_name,

p.position

from dba_constraints c, dba_cons_columns t, dba_cons_columns p

where c.owner = t.owner

and c.constraint_name = t.constraint_name -- 外键

and c.r_constraint_name = p.constraint_name --主键

and c.r_owner = p.owner

and t.position = p.position

and c.owner in ('TEST')

AND C.constraint_type = 'R'

order by c.owner,

c.table_name,

c.constraint_name,

t.column_name,

t.position,

c.constraint_type,

c.r_owner,

c.r_constraint_name,

p.table_name,

p.column_name,

p.position

--17、top ten sql

SELECT *

FROM (SELECT b.username username,

a.disk_reads

/ DECODE (a.executions, 0, 1, a.executions) rds_exec_ratio,

a.sql_text STATEMENT

FROM v$sqlarea a, dba_users b

WHERE a.parsing_user_id = b.user_id

ORDER BY rds_exec_ratio DESC)

WHERE ROWNUM < 11

ORDER BY rds_exec_ratio DESC