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目 录
1.捕捉运行很久的SQL
2.求DISK READ较多的SQL
3.求DISK SORT严重的SQL
4.计算data buffer 命中率
5.监控索引是否使用
6.求数据文件的I/O分布
7求某个隐藏参数的值
8求系统中较大的latch
9求归档日志的切换频率(生产系统可能时间会很长)
10.求回滚段正在处理的事务
11.求出无效的对象
12.求process/session的状态
13.求当前session的状态
14.求表的索引信息
15.显示表的外键信息
16.显示表的分区及子分区(user_tab_subpartitions)
17.使用dbms_xplan生成一个执行计划
18.求某个事务的重做信息(bytes)
19.求cache中缓存超过其5%的对象
20.求谁阻塞了某个session(10g)
21.求session的OS进程ID
22.查会话的阻塞
23.求等待的事件及会话信息/求会话的等待及会话信息
24.求会话等待的file_id/block_id
25求会话等待的对象
26求buffer cache中的块信息
27求日志文件的空间使用
28求等待中的对象
29求当前事务的重做尺寸
30唤醒smon去清除临时段
31求回退率
32求DISK READ较多的SQL
33求DISK SORT严重的SQL
34求对象的创建代码
35求表的索引
36求索引中行数较多的
37求当前会话的SID，SERIAL#
38求表空间的未用空间
39求表中定义的触发器
40求未定义索引的表
41执行常用的过程
42求free memory
43查看用户的回滚段的信息
44生成执行计划
45查看执行计划
46查看内存中存的使用
47查看表空间状态
48查看系统请求情况
49计算data buffer命中率
50查看内存使用情况
51查看用户使用内存情况
52查看对象的缓存情况
53查看库缓存命中率
54查看某些用户的hash
55查看字典命中率
56查看undo段的使用情况
57无效的对象
58求出某个进程，并对它进行跟踪
59求出锁定的对象
60求当前session的跟踪文件
61求对象所在的文件及块号
62求对象发生事务时回退段及块号
63.9i的在线重定义表
64常用的logmnr脚本(cybercafe)
65与权限相关的字典
66如何用dbms_stats分析表及模式？
67查看数据库的名字和归档状态
68查看数据库的instance名字和状态
69查看表空间名称、状态和管理方式
70查看控制文件的位置和名字
71 查看日志文件的组名、成员数量、状态和大小
72查看日志文件的位置
73查看数据文件的位置和大小
74查看用户拥有的对象和类型
75查看临时文件的信息
76查看归档日志信息
捕捉运行很久的SQL
column username format a12
column opname format a16
column progress format a8
SELECT Username, Sid, Opname,
Round(Sofar * 100 / Totalwork, 0) || '%' AS Progress, Time_Remaining,
Sql_Text
FROM V$session_Longops, V$sql
WHERE Time_Remaining <> 0
AND Sql_Address = Address
AND Sql_Hash_Value = Hash_Value;
求DISK READ较多的SQL
SELECT St.Sql_Text
FROM V$sql s, V$sqltext St
WHERE s.Address = St.Address
AND s.Hash_Value = St.Hash_Value
AND s.Disk_Reads > 300;
求DISK SORT严重的SQL
SELECT Sess.Username, SQL.Sql_Text, Sort1.Blocks
FROM V$session Sess, V$sqlarea SQL, V$sort_Usage Sort1
WHERE Sess.Serial# = Sort1.Session_Num
AND Sort1.Sqladdr = SQL.Address
AND Sort1.Sqlhash = SQL.Hash_Value
AND Sort1.Blocks > 200;
计算data buffer 命中率
SELECT a.VALUE + b.VALUE "logical_reads", c.VALUE "phys_reads",
Round(100 * ((a.VALUE + b.VALUE) - c.VALUE) / (a.VALUE + b.VALUE)) "BUFFER HIT RATIO"
FROM V$sysstat a, V$sysstat b, V$sysstat c
WHERE a.Statistic# = 40
AND b.Statistic# = 41
AND c.Statistic# = 42;
SELECT NAME,
(1 - (Physical_Reads / (Db_Block_Gets + Consistent_Gets))) * 100 h_Ratio
FROM V$buffer_Pool_Statistics;
--监控索引是否使用
alter index &index_name monitoring usage;
alter index &index_name nomonitoring usage;
select * from v$object_usage where index_name = &index_name;
--求数据文件的I/O分布
select df.name,phyrds,phywrts,phyblkrd,phyblkwrt,singleblkrds,readtim,writetim
from v$filestat fs,v$dbfile df
where fs.file#=df.file# order by df.name;
--求某个隐藏参数的值
col ksppinm format a54
col ksppstvl format a54
select ksppinm, ksppstvl
from x$ksppi pi, x$ksppcv cv
where cv.indx=pi.indx and pi.ksppinm like '\_%' escape '\' and pi.ksppinm like '%meer%';
--求系统中较大的latch
select name,sum(gets),sum(misses),sum(sleeps),sum(wait_time)
from v$latch_children
group by name having sum(gets) > 50 order by 2;
--求归档日志的切换频率(生产系统可能时间会很长)
select start_recid,start_time,end_recid,end_time,minutes from (select test.*, rownum as rn
from (select b.recid start_recid,to_char(b.first_time,'yyyy-mm-dd hh24:mi:ss') start_time,
a.recid end_recid,to_char(a.first_time,'yyyy-mm-dd hh24:mi:ss') end_time,round(((a.first_time-b.first_time)*24)*60,2) minutes
from v$log_history a,v$log_history b where a.recid=b.recid+1 and b.first_time > sysdate - 1
order by a.first_time desc) test) y where y.rn < 30
--求回滚段正在处理的事务
select a.name,b.xacts,c.sid,c.serial#,d.sql_text
from v$rollname a,v$rollstat b,v$session c,v$sqltext d,v$transaction e
where a.usn=b.usn and b.usn=e.xidusn and c.taddr=e.addr
and c.sql_address=d.address and c.sql_hash_value=d.hash_value order by a.name,c.sid,d.piece;
--求出无效的对象
select 'alter procedure '||object_name||' compile;'
from dba_objects
where status='INVALID' and wner='&' and object_type in ('PACKAGE','PACKAGE BODY');
/
select owner,object_name,object_type,status from dba_objects where status='INVALID';
--求process/session的状态
select p.pid,p.spid,s.program,s.sid,s.serial#
from v$process p,v$session s where s.paddr=p.addr;
--求当前session的状态
select sn.name,ms.value
from v$mystat ms,v$statname sn
where ms.statistic#=sn.statistic# and ms.value > 0;
--求表的索引信息
select ui.table_name,ui.index_name
from user_indexes ui,user_ind_columns uic
where ui.table_name=uic.table_name and ui.index_name=uic.index_name
and ui.table_name like '&table_name%' and uic.column_name='&column_name';
--显示表的外键信息
col search_condition format a54
select table_name,constraint_name
from user_constraints
where c and constraint_name in (select constraint_name from user_cons_columns where column_name='&1');
select rpad(child.table_name,25,' ') child_tablename,
rpad(cp.column_name,17,' ') referring_column,rpad(parent.table_name,25,' ') parent_tablename,
rpad(pc.column_name,15,' ') referred_column,rpad(child.constraint_name,25,' ') constraint_name
from user_constraints child,user_constraints parent,
user_cons_columns cp,user_cons_columns pc
where child.c and child.r_constraint_name = parent.constraint_name and
child.constraint_name = cp.constraint_name and parent.constraint_name = pc.constraint_name and
cp.position = pc.position and child.table_name ='&table_name'
order by child.owner,child.table_name,child.constraint_name,cp.position;
--显示表的分区及子分区(user_tab_subpartitions)
col table_name format a16
col partition_name format a16
col high_value format a81
select table_name,partition_name,HIGH_VALUE from user_tab_partitions where table_name='&table_name'
--使用dbms_xplan生成一个执行计划
explain plan set statement_id = '&sql_id' for &sql;
select * from table(dbms_xplan.display);
--求某个事务的重做信息(bytes)
select s.name,m.value
from v$mystat m,v$statname s
where m.statistic#=s.statistic# and s.name like '%redo size%';
--求cache中缓存超过其5%的对象
select o.owner,o.object_type,o.object_name,count(b.objd)
from v$bh b,dba_objects o
where b.objd = o.object_id
group by o.owner,o.object_type,o.object_name
having count(b.objd) > (select to_number(value)*0.05 from v$parameter where name = 'db_block_buffers');
--求谁阻塞了某个session(10g)
select sid, username, event, blocking_session,
seconds_in_wait, wait_time
from v$session where state in ('WAITING') and wait_class != 'Idle';
--求session的OS进程ID
col program format a54
select p.spid "OS Thread", b.name "Name-User", s.program
from v$process p, v$session s, v$bgprocess b
where p.addr = s.paddr and p.addr = b.paddr
UNION ALL
select p.spid "OS Thread", s.username "Name-User", s.program
from v$process p, v$session s where p.addr = s.paddr and s.username is not null;
--查会话的阻塞
col user_name format a32
select /*+ rule */ lpad(' ',decode(l.xidusn ,0,3,0))||l.oracle_username user_name, o.owner,o.object_name,s.sid,s.serial#
from v$locked_object l,dba_objects o,v$session s
where l.object_id=o.object_id and l.session_id=s.sid order by o.object_id,xidusn desc ;
col username format a15
col lock_level format a8
col owner format a18
col object_name format a32
select /*+ rule */ s.username, decode(l.type,'tm','table lock', 'tx','row lock', null) lock_level, o.owner,o.object_name,s.sid,s.serial#
from v$session s,v$lock l,dba_objects o
where l.sid = s.sid and l.id1 = o.object_id(+) and s.username is not null ;
--求等待的事件及会话信息/求会话的等待及会话信息
select se.sid,s.username,se.event,se.total_waits,se.time_waited,se.average_wait
from v$session s,v$session_event se
where s.username is not null and se.sid=s.sid and s.status='ACTIVE' and se.event not like '%SQL*Net%' order by s.username;
select s.sid,s.username,sw.event,sw.wait_time,sw.state,sw.seconds_in_wait
from v$session s,v$session_wait sw
where s.username is not null and sw.sid=s.sid and sw.event not like '%SQL*Net%' order by s.username;
--求会话等待的file_id/block_id
col event format a24
col p1text format a12
col p2text format a12
col p3text format a12
select sid,event,p1text, p1, p2text, p2, p3text, p3
from v$session_wait
where event not like '%SQL%' and event not like '%rdbms%' and event not like '%mon%' order by event;
select name,wait_time from v$latch l where exists (select 1 from (select sid,event,p1text, p1, p2text, p2, p3text, p3
from v$session_wait
where event not like '%SQL%' and event not like '%rdbms%' and event not like '%mon%'
) x where x.p1= l.latch#);
--求会话等待的对象
col owner format a18
col segment_name format a32
col segment_type format a32
select owner,segment_name,segment_type
from dba_extents
where file_id = &file_id and &block_id between block_id and block_id + blocks - 1;
--求buffer cache中的块信息
select o.OBJECT_TYPE, substr(o.OBJECT_NAME,1,10) objname , b.objd , b.status, count(b.objd)
from v$bh b, dba_objects o
where b.objd = o.data_object_id and o.owner = '&1' group by o.object_type, o.object_name,b.objd, b.status ;
--求日志文件的空间使用
select le.leseq current_log_sequence#, 100*cp.cpodr_bno/le.lesiz percentage_full
from x$kcccp cp,x$kccle le
where le.leseq =cp.cpodr_seq;
--求等待中的对象
select /*+rule */ s.sid, s.username, w.event, o.owner, o.segment_name, o.segment_type,
o.partition_name, w.seconds_in_wait seconds, w.state
from v$session_wait w, v$session s, dba_extents o
where w.event in (select name from v$event_name where parameter1 = 'file#'
and parameter2 = 'block#' and name not like 'control%')
and o.owner <> 'sys' and w.sid = s.sid and w.p1 = o.file_id and w.p2 >= o.block_id and w.p2 < o.block_id + o.blocks
--求当前事务的重做尺寸
select value
from v$mystat, v$statname
where v$mystat.statistic# = v$statname.statistic# and v$statname.name = 'redo size';
--唤醒smon去清除临时段
column pid new_value Smon
set termout off
select p.pid from sys.v_$bgprocess b,sys.v_$process p where b.name = 'SMON' and p.addr = b.paddr
/
set termout on
oradebug wakeup &Smon
undefine Smon
--求回退率
select b.value/(a.value + b.value),a.value,b.value from v$sysstat a,v$sysstat b
where a.statistic#=4 and b.statistic#=5;
--求DISK READ较多的SQL
select st.sql_text from v$sql s,v$sqltext st
where s.address=st.address and s.hash_value=st.hash_value and s.disk_reads > 300;
--求DISK SORT严重的SQL
select sess.username, sql.sql_text, sort1.blocks
from v$session sess, v$sqlarea sql, v$sort_usage sort1
where sess.serial# = sort1.session_num
and sort1.sqladdr = sql.address
and sort1.sqlhash = sql.hash_value and sort1.blocks > 200;
--求对象的创建代码
column column_name format a36
column sql_text format a99
select dbms_metadata.get_ddl('TABLE','&1') from dual;
select dbms_metadata.get_ddl('INDEX','&1') from dual;
--求表的索引
set linesize 131
select a.index_name,a.column_name,b.status, b.index_type
from user_ind_columns a,user_indexes b
where a.index_name=b.index_name and a.table_name='&1';
求索引中行数较多的
select index_name,blevel,num_rows,CLUSTERING_FACTOR,status from user_indexes where num_rows > 10000 and blevel > 0
select table_name,index_name,blevel,num_rows,CLUSTERING_FACTOR,status from user_indexes where status <> 'VALID'
--求当前会话的SID，SERIAL#
select sid, serial# from v$session where audsid = SYS_CONTEXT('USERENV','SESSIONID');
--求表空间的未用空间
col mbytes format 9999.9999
select tablespace_name,sum(bytes)/1024/1024 mbytes from dba_free_space group by tablespace_name;
--求表中定义的触发器
select table_name,index_type,index_name,uniqueness from user_indexes where table_name='&1';
select trigger_name from user_triggers where table_name='&1';
--求未定义索引的表
select table_name from user_tables where table_name not in (select table_name from user_ind_columns);
--执行常用的过程
exec print_sql('select count(*) from tab');
exec show_space2('table_name');
--求free memory
select * from v$sgastat where name='free memory';
select a.name,sum(b.value) from v$statname a,v$sesstat b where a.statistic# = b.statistic# group by a.name;
查看一下谁在使用那个可以得回滚段，或者查看一下某个可以得用户在使用回滚段，找出领回滚段不断增长的事务，再看看如何处理它，是否可以将它commit，再不行就看能否kill它,查看当前正在使用的回滚段的用户信息和回滚段信息:
set linesize 121
SELECT r.name "ROLLBACK SEGMENT NAME ",l.sid "ORACLE PID",p.spid "SYSTEM PID ",s.username "ORACLE USERNAME"
FROM v$lock l, v$process p, v$rollname r, v$session s
WHERE l.sid = p.pid(+) AND s.sid=l.sid AND TRUNC(l.id1(+)/65536) = r.usn AND l.type(+) = 'TX' AND l.lmode(+) = 6 ORDER BY r.name;
--查看用户的回滚段的信息
select s.username, rn.name from v$session s, v$transaction t, v$rollstat r, v$rollname rn
where s.saddr = t.ses_addr and t.xidusn = r.usn and r.usn = rn.usn
--生成执行计划
explain plan set statement_id='a1' for &1;
--查看执行计划
select lpad(' ',2*(level-1))||operation operation,options,OBJECT_NAME,position from plan_table
start with id=0 and statement_id='a1' connect by prior id=parent_id and statement_id='a1'
--查看内存中存的使用
select decode(greatest(class,10),10,decode(class,1,'Data',2,'Sort',4,'Header',to_char(class)),'Rollback') "Class",
sum(decode(bitand(flag,1),1,0,1)) "Not Dirty",sum(decode(bitand(flag,1),1,1,0)) "Dirty",
sum(dirty_queue) "On Dirty",count(*) "Total"
from x$bh group by decode(greatest(class,10),10,decode(class,1,'Data',2,'Sort',4,'Header',to_char(class)),'Rollback');
--查看表空间状态
select tablespace_name,extent_management,segment_space_management from dba_tablespaces;
select table_name,freelists,freelist_groups from user_tables;
--查看系统请求情况
SELECT DECODE (name, 'summed dirty write queue length', value)/
DECODE (name, 'write requests', value) "Write Request Length"
FROM v$sysstat WHERE name IN ( 'summed dirty queue length', 'write requests') and value>0;
--计算data buffer命中率
select a.value + b.value "logical_reads", c.value "phys_reads",
round(100 * ((a.value+b.value)-c.value) / (a.value+b.value)) "BUFFER HIT RATIO"
from v$sysstat a, v$sysstat b, v$sysstat c
where a.statistic# = 40 and b.statistic# = 41 and c.statistic# = 42;
SELECT name, (1-(physical_reads/(db_block_gets+consistent_gets)))*100 H_RATIO FROM v$buffer_pool_statistics;
--查看内存使用情况
select least(max(b.value)/(1024*1024),sum(a.bytes)/(1024*1024)) shared_pool_used,
max(b.value)/(1024*1024) shared_pool_size,greatest(max(b.value)/(1024*1024),sum(a.bytes)/(1024*1024))-(sum(a.bytes)/(1024*1024)) shared_pool_avail,((sum(a.bytes)/(1024*1024))/(max(b.value)/(1024*1024)))*100 avail_pool_pct
from v$sgastat a, v$parameter b where (a.pool='shared pool' and a.name not in ('free memory')) and b.name='shared_pool_size';
--查看用户使用内存情况
select username, sum(sharable_mem), sum(persistent_mem), sum(runtime_mem)
from sys.v_$sqlarea a, dba_users b
where a.parsing_user_id = b.user_id group by username;
--查看对象的缓存情况
select OWNER,NAMESPACE,TYPE,NAME,SHARABLE_MEM,LOADS,EXECUTIONS,LOCKS,PINS,KEPT
from v$db_object_cache where type not in ('NOT LOADED','NON-EXISTENT','VIEW','TABLE','SEQUENCE')
and executions>0 and loads>1 and kept='NO' order by owner,namespace,type,executions desc;
select type,count(*) from v$db_object_cache group by type;
--查看库缓存命中率
select namespace,gets, gethitratio*100 gethitratio,pins,pinhitratio*100 pinhitratio,RELOADS,INVALIDATIONS from v$librarycache
--查看某些用户的hash
select a.username, count(b.hash_value) total_hash,count(b.hash_value)-count(unique(b.hash_value)) same_hash,
(count(unique(b.hash_value))/count(b.hash_value))*100 u_hash_ratio
from dba_users a, v$sqlarea b where a.user_id=b.parsing_user_id group by a.username;
--查看字典命中率
select (sum(getmisses)/sum(gets)) ratio from v$rowcache;
--查看undo段的使用情况
SELECT d.segment_name,extents,optsize,shrinks,aveshrink,aveactive,d.status
FROM v$rollname n,v$rollstat s,dba_rollback_segs d
WHERE d.segment_id=n.usn(+) and d.segment_id=s.usn(+);
--无效的对象
select owner,object_type,object_name from dba_objects where status='INVALID';
select constraint_name,table_name from dba_constraints where status='INVALID';
--求出某个进程，并对它进行跟踪
select s.sid,s.serial# from v$session s,v$process p where s.paddr=p.addr and p.spid=&1;
exec dbms_system.SET_SQL_TRACE_IN_SESSION(&1,&2,true);
exec dbms_system.SET_SQL_TRACE_IN_SESSION(&1,&2,false);
--求出锁定的对象
select do.object_name,session_id,process,locked_mode
from v$locked_object lo, dba_objects do where lo.object_id=do.object_id;
--求当前session的跟踪文件
SELECT p1.value || '/' || p2.value || '_ora_' || p.spid || '.ora' filename
FROM v$process p, v$session s, v$parameter p1, v$parameter p2
WHERE p1.name = 'user_dump_dest' AND p2.name = 'instance_name'
AND p.addr = s.paddr AND s.audsid = USERENV('SESSIONID') AND p.background is null AND instr(p.program,'CJQ') = 0;
--求对象所在的文件及块号
select segment_name,header_file,header_block
from dba_segments where segment_name like '&1';
--求对象发生事务时回退段及块号
select a.segment_name,a.header_file,a.header_block
from dba_segments a,dba_rollback_segs b
where a.segment_name=b.segment_name and b.segment_id='&1'
--9i的在线重定义表
/*如果在线重定义的表没有主键需要创建主键*/
exec dbms_redefinition.can_redef_table('cybercafe','announcement');
create table anno2 as select * from announcement
exec dbms_redefinition.start_redef_table('cybercafe','announcement','anno2');
exec dbms_redefinition.sync_interim_table('cybercafe','announcement','anno2');
exec dbms_redefinition.finish_redef_table('cybercafe','announcement','anno2');
drop table anno2
exec dbms_redefinition.abort_redef_table('cybercafe','announcement','anno2');
--常用的logmnr脚本(cybercafe)
exec sys.dbms_logmnr_d.build(dictionary_filename =>'esal',dictionary_location =>'/home/oracle/logmnr');
exec sys.dbms_logmnr.add_logfile(logfilename=>'/home/oracle/oradata/esal/archive/1_24050.dbf', ptions=>sys.dbms_logmnr.new);
exec sys.dbms_logmnr.add_logfile(logfilename=>'/home/oracle/oradata/esal/archive/1_22912.dbf', ptions=>sys.dbms_logmnr.addfile);
exec sys.dbms_logmnr.add_logfile(logfilename=>'/home/oracle/oradata/esal/archive/1_22913.dbf', ptions=>sys.dbms_logmnr.addfile);
exec sys.dbms_logmnr.add_logfile(logfilename=>'/home/oracle/oradata/esal/archive/1_22914.dbf', ptions=>sys.dbms_logmnr.addfile);
exec sys.dbms_logmnr.start_logmnr(dictfilename=>'/home/oracle/logmnr/esal.ora');
create table logmnr2 as select * from v$logmnr_contents;
--与权限相关的字典
ALL_COL_PRIVS表示列上的授权，用户和PUBLIC是被授予者
ALL_COL_PRIVS_MADE表示列上的授权，用户是属主和被授予者
ALL_COL_RECD表示列上的授权，用户和PUBLIC是被授予者
ALL_TAB_PRIVS表示对象上的授权，用户是PUBLIC或被授予者或用户是属主
ALL_TAB_PRIVS_MADE表示对象上的权限，用户是属主或授予者
ALL_TAB_PRIVS_RECD表示对象上的权限,用户是PUBLIC或被授予者
DBA_COL_PRIVS数据库列上的所有授权
DBA_ROLE_PRIVS显示已授予用户或其他角色的角色
DBA_SYS_PRIVS已授予用户或角色的系统权限
DBA_TAB_PRIVS数据库对象上的所有权限
ROLE_ROLE_PRIVS显示已授予用户的角色
ROLE_SYS_PRIVS显示通过角色授予用户的系统权限
ROLE_TAB_PRIVS显示通过角色授予用户的对象权限
SESSION_PRIVS显示用户现在可利用的所有系统权限
USER_COL_PRIVS显示列上的权限，用户是属主、授予者或被授予者
USER_COL_PRIVS_MADE显示列上已授予的权限，用户是属主或授予者
USER_COL_PRIVS_RECD显示列上已授予的权限，用户是属主或被授予者
USER_ROLE_PRIVS显示已授予给用户的所有角色
USER_SYS_PRIVS显示已授予给用户的所有系统权限
USER_TAB_PRIVS显示已授予给用户的所有对象权限
USER_TAB_PRIVS_MADE显示已授予给其他用户的对象权限，用户是属主
USER_TAB_PRIVS_RECD显示已授予给其他用户的对象权限，用户是被授予者
--如何用dbms_stats分析表及模式？
exec dbms_stats.gather_schema_stats(ownname=>'&USER_NAME',estimate_percent=>dbms_stats.auto_sample_size,
method_opt => 'for all columns size auto',degree=> DBMS_STATS.DEFAULT_DEGREE);
exec dbms_stats.gather_schema_stats(ownname=>'&USER_NAME',estimate_percent=>dbms_stats.auto_sample_size,cascade=>true);
/*
FOR ALL [INDEXED | HIDDEN] COLUMNS [size_clause]
FOR COLUMNS [size clause] column|attribute [size_clause] [,column|attribute [size_clause]...],
where size_clause is defined as size_clause := SIZE {integer | REPEAT | AUTO | SKEWONLY}
integer--Number of histogram buckets. Must be in the range [1,254].
REPEAT--Collects histograms only on the columns that already have histograms.
AUTO--Oracle determines the columns to collect histograms based on data distribution and the workload of the columns.
SKEWONLY--Oracle determines the columns to collect histograms based on the data distribution of the columns
*/
查看oracle 10g 视图
2008-09-28 10:46
|
查看数据库的名字和归档状态
SQL> select name,log_mode from v$database;
NAME LOG_MODE
--------- ------------
HB130000 ARCHIVELOG
查看数据库的instance名字和状态
SQL> select instance_name,status from v$instance;
INSTANCE_NAME STATUS
hb130000 OPEN
查看表空间名称、状态和管理方式
SQL> select tablespace_name,status,extent_management from dba_tablespaces;
TABLESPACE_NAME STATUS EXTENT_MAN
SYSTEM ONLINE LOCAL
UNDOTBS1 ONLINE LOCAL
SYSAUX ONLINE LOCAL
TEMP ONLINE LOCAL
USERS ONLINE LOCAL
GFB ONLINE LOCAL
YSZX130000002004 ONLINE LOCAL
RMAN ONLINE LOCAL
8 rows selected.
查看控制文件的位置和名字
SQL> select name from v$controlfile;
NAME
/oracle/app/oracle/OraHome/dbs/hb130000/control01.ctl
/oradata/hb130000/control02.ctl
/oradata/hb130000/control03.ctl
查看日志文件的组名、成员数量、状态和大小
SQL> select group#,members,bytes,status from v$log;
GROUP# MEMBERS BYTES STATUS
1 2 52428800 INACTIVE
2 2 52428800 INACTIVE
3 2 52428800 CURRENT
查看日志文件的位置
SQL> select group#,member from v$logfile;
GROUP# MEMBER
3/oradata/hb130000/redo03.log
3/oracle/app/oracle/OraHome/dbs/hb130000/redo03.rdo
2/oradata/hb130000/redo02.log
GROUP# MEMBER
2
/oracle/app/oracle/OraHome/dbs/hb130000/redo02.rdo
1
/oradata/hb130000/redo01.log
1
/oracle/app/oracle/OraHome/dbs/hb130000/redo01.rdo
6 rows selected.
查看数据文件的位置和大小
SQL> select name,bytes from v$datafile;
NAME
BYTES
/oradata/hb130000/system01.dbf
492830720
/oradata/hb130000/undotbs01.dbf
41943040
/oradata/hb130000/sysaux01.dbf
346030080
NAME
BYTES
/oradata/hb130000/users01.dbf
5242880
/oradata/hb130000/GFB.DBF
20971520
/oradata/hb130000/YSZX130000002004.DBF
176160768
NAME
BYTES
/oradata/hb130000/rman.dbf
104857600
7 rows selected.
查看用户拥有的对象和类型
SQL> select object_name,object_type from dba_objects where owner='SCOTT';
OBJECT_NAME
OBJECT_TYPE
DEPT
TABLE
PK_DEPT
INDEX
EMP
TABLE
PK_EMP
INDEX
BONUS
TABLE
SALGRADE
TABLE
6 rows selected.
查看临时文件的信息
SQL> select name,bytes from v$tempfile;
NAME
BYTES
/oradata/hb130000/temp01.dbf
20971520
查看归档日志信息
SQL> select name, FIRST_CHANGE#,next_change# from v$archived_log;
NAME
FIRST_CHANGE# NEXT_CHANGE#
/oracle/app/oracle/OraHome/dbs/archive/hb130000_1_53_532853380.dbf
1669178 1707392
/oracle/app/oracle/OraHome/dbs/archive/hb130000_1_54_532853380.dbf
1707392 1734524
/oracle/app/oracle/OraHome/dbs/archive/hb130000_1_55_532853380.dbf
1734524 1772848
NAME
FIRST_CHANGE# NEXT_CHANGE#
/oracle/app/oracle/OraHome/dbs/archive/hb130000_1_56_532853380.dbf
1772848 1798092
/oracle/app/oracle/OraHome/dbs/archive/hb130000_1_57_532853380.dbf
1798092 1831478
/oracle/app/oracle/OraHome/dbs/archive/hb130000_1_58_532853380.dbf
1831478 1865033
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发表于 2012-9-18 11:51:54
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发表于 2012-9-18 18:58:20