来源:网海拾贝
设置装备安插:
Windows NT 4.0 中文版
5块10.2GB SCSI硬盘
分:C:盘、D:盘、E:盘、F:盘、G:盘
Oracle 8.0.4 for Windows NT
NT安插在C:WINNT,Oracle安插在C:ORANT
目标:
因细碎的回滚段太小,现狡计生成新的回滚段,
设立树立大的、新的表空间(数据表空间、索引表空间、回滚表空间、临时表空间、)
建两个数据表空间、两个索引表空间,多么建的目标是根据实际运用,
如:现有10个运用用户,每个用户是一个自力子细碎(如:商业进销存MIS细碎中的财政、收款、库存、人事、总经理等)
尤其大型商场中收款机众多,同时造访历程很多,常常到达50-100个历程同时造访,
多么,经过设立树立多个用户表空间、索引表空间,把各个用户鉴识建在分歧的表空间里(多个用户表空间放在分歧的物理磁盘上),
增添了用户之间的I/O竞争、读写数据与写读索引的竞争(用户表空间、索引表空间也鉴识放在分歧的物理磁盘上)
狡计:
C:盘、NT细碎,Oracle细碎
D:盘、数据表空间1(3GB、主动扩展)、回滚表空间1(1GB、主动扩展)
E:盘、数据表空间2(3GB、主动扩展)、回滚表空间2(1GB、主动扩展)
F:盘、索引表空间1(2GB、主动扩展)、临时表空间1(0.5GB、不主动扩展)
G:盘、索引表空间2(2GB、主动扩展)、临时表空间2(0.5GB、不主动扩展)
注:这只是一个简单的狡计,实际狡计要依细碎需求来定,虽然即便增添I/O竞争
完成:
1、首先查抄细碎有哪些回滚段及其形态。
SQL> col owner format a20
SQL> col status format a10
SQL> col segment_name format a20
SQL> col tablespace_name format a20
SQL> SELECT OWNER,SEGMENT_NAME,TABLESPACE_NAME,SUM(BYTES)/1024/1024 M
2 FROM DBA_SEGMENTS
3 WHERE SEGMENT_TYPE='ROLLBACK'
4 GROUP BY OWNER,SEGMENT_NAME,TABLESPACE_NAME
5 /
OWNER SEGMENT_NAME TABLESPACE_NAME M
-------------------- -------------------- -------------------- ---------
SYS RB1 ROLLBACK_DATA .09765625
SYS RB10 ROLLBACK_DATA .09765625
SYS RB11 ROLLBACK_DATA .09765625
SYS RB12 ROLLBACK_DATA .09765625
SYS RB13 ROLLBACK_DATA .09765625
SYS RB14 ROLLBACK_DATA .09765625
SYS RB15 ROLLBACK_DATA .09765625
SYS RB16 ROLLBACK_DATA .09765625
SYS RB2 ROLLBACK_DATA .09765625
SYS RB3 ROLLBACK_DATA .09765625
SYS RB4 ROLLBACK_DATA .09765625
SYS RB5 ROLLBACK_DATA .09765625
SYS RB6 ROLLBACK_DATA .09765625
SYS RB7 ROLLBACK_DATA .09765625
SYS RB8 ROLLBACK_DATA .09765625
SYS RB9 ROLLBACK_DATA .09765625
SYS RB_TEMP SYSTEM .24414063
SYS SYSTEM SYSTEM .1953125
查询到18记录.
SQL> SELECT SEGMENT_NAME,OWNER,
2 TABLESPACE_NAME,SEGMENT_ID,FILE_ID,STATUS
3 FROM DBA_ROLLBACK_SEGS
4 /
SEGMENT_NAME OWNER TABLESPACE_NAME SEGMENT_ID FILE_ID STATUS
-------------------- -------------------- -------------------- ---------- --------- ----------
SYSTEM SYS SYSTEM 0 1 ONLINE
RB_TEMP SYS SYSTEM 1 1 OFFLINE
RB1 PUBLIC ROLLBACK_DATA 2 3 ONLINE
RB2 PUBLIC ROLLBACK_DATA 3 3 ONLINE
RB3 PUBLIC ROLLBACK_DATA 4 3 ONLINE
RB4 PUBLIC ROLLBACK_DATA 5 3 ONLINE
RB5 PUBLIC ROLLBACK_DATA 6 3 ONLINE
RB6 PUBLIC ROLLBACK_DATA 7 3 OFFLINE
RB7 PUBLIC ROLLBACK_DATA 8 3 OFFLINE
RB8 PUBLIC ROLLBACK_DATA 9 3 OFFLINE
RB9 PUBLIC ROLLBACK_DATA 10 3 OFFLINE
RB10 PUBLIC ROLLBACK_DATA 11 3 OFFLINE
RB11 PUBLIC ROLLBACK_DATA 12 3 OFFLINE
RB12 PUBLIC ROLLBACK_DATA 13 3 OFFLINE
RB13 PUBLIC ROLLBACK_DATA 14 3 OFFLINE
RB14 PUBLIC ROLLBACK_DATA 15 3 OFFLINE
RB15 PUBLIC ROLLBACK_DATA 16 3 OFFLINE
RB16 PUBLIC ROLLBACK_DATA 17 3 OFFLINE
查询到18记录.
2、批改代码如下,可把以下代码存入一.sql文件,如cg_sys.sql,然后以SQL> @cg_sys.sql调用实行。
--详细:各个硬盘上要事前建好oradata目次
--批改现有回滚段,使之失效,下线
alter rollback segment rb1 offline;
alter rollback segment rb2 offline;
alter rollback segment rb3 offline;
alter rollback segment rb4 offline;
alter rollback segment rb5 offline;
alter rollback segment rb6 offline;
alter rollback segment rb7 offline;
alter rollback segment rb8 offline;
alter rollback segment rb9 offline;
alter rollback segment rb10 offline;
alter rollback segment rb11 offline;
alter rollback segment rb12 offline;
alter rollback segment rb13 offline;
alter rollback segment rb14 offline;
alter rollback segment rb15 offline;
alter rollback segment rb16 offline;
--删除原有回滚段
drop rollback segment rb1;
drop rollback segment rb2;
drop rollback segment rb3;
drop rollback segment rb4;
drop rollback segment rb5;
drop rollback segment rb6;
drop rollback segment rb7;
drop rollback segment rb8;
drop rollback segment rb9;
drop rollback segment rb10;
drop rollback segment rb11;
drop rollback segment rb12;
drop rollback segment rb13;
drop rollback segment rb14;
drop rollback segment rb15;
drop rollback segment rb16;
--建数据表空间1
--收款、库存、订货、远程通信
create tablespace USER_DATA1 datafile
'd:oradatauser1_1.ora' size 512M,
'd:oradatauser1_2.ora' size 512M,
'd:oradatauser1_3.ora' size 512M,
'd:oradatauser1_4.ora' size 512M,
'd:oradatauser1_5.ora' size 512M,
'd:oradatauser1_6.ora' size 512M
AUTOEXTEND ON NEXT 5M MAXSIZE UNLIMITED
default storage (initial 128K next 2M pctincrease 0);
--initial 128K,因为,用户建在表空间上,而表建在用户里,为用户所拥有,
--用户秉承数据表空间的存储参数,表秉承用户的存储参数
--假定initial设的过大,如:5M,则每建一个空表就要占用5M的空间,即便一条记录也没有
--AUTOEXTEND ON NEXT 5M MAXSIZE UNLIMITED,设置数据文件主动扩展,每一次扩展添加5M,最大空间不受限
--建数据表空间2
--物价、人事、结算、财政、总经理、公约、统计
create tablespace USER_DATA2 datafile
'e:oradatauser2_1.ora' size 512M,
'e:oradatauser2_2.ora' size 512M,
'e:oradatauser2_3.ora' size 512M,
'e:oradatauser2_4.ora' size 512M,
'e:oradatauser2_5.ora' size 512M,
'e:oradatauser2_6.ora' size 512M
AUTOEXTEND ON NEXT 5M MAXSIZE UNLIMITED
default storage (initial 128K next 2M pctincrease 0);
--建索引表空间1
create tablespace INDEX_DATA1 datafile
'f:oradataindex1_1.ora' size 512M,
'f:oradataindex1_2.ora' size 512M,
'f:oradataindex1_3.ora' size 512M,
'f:oradataindex1_4.ora' size 512M
AUTOEXTEND ON NEXT 5M MAXSIZE UNLIMITED
default storage (initial 128K next 2M pctincrease 0);
--建索引表空间2
create tablespace INDEX_DATA2 datafile
'g:oradataindex2_1.ora' size 512M,
'g:oradataindex2_2.ora' size 512M,
'g:oradataindex2_3.ora' size 512M,
'g:oradataindex2_4.ora' size 512M
AUTOEXTEND ON NEXT 5M MAXSIZE UNLIMITED
default storage (initial 128K next 2M pctincrease 0);
--建回滚表空间1
--设置初始值40M(initial 40M),则每在这个表空间中建一个回滚段,
--此回滚段主动秉承此回滚表空间的存储参数,也即默许文件为40M
create tablespace ROLLBACK_DATA1 datafile
'd:oradataroll1_1.ora' size 512M,
'd:oradataroll1_2.ora' size 512M
AUTOEXTEND ON NEXT 5M MAXSIZE UNLIMITED
default storage (initial 40M next 5M pctincrease 0);
--建回滚表空间2
create tablespace ROLLBACK_DATA2 datafile
'e:oradataroll2_1.ora' size 512M,
'e:oradataroll2_2.ora' size 512M
AUTOEXTEND ON NEXT 5M MAXSIZE UNLIMITED
default storage (initial 40M next 5M pctincrease 0);
--建临时表空间1
create tablespace TEMPORARY_DATA1 datafile
'f:oradatatemp1_1.ora' size 512M
default storage (initial 10M next 3M pctincrease 0);
--建临时表空间2
create tablespace TEMPORARY_DATA2 datafile
'g:oradatatemp2_1.ora' size 512M
default storage (initial 10M next 3M pctincrease 0);
--使其真正成为临时的
alter tablespace TEMPORARY_DATA1 temporary;
alter tablespace TEMPORARY_DATA2 temporary;
--设立树立新的回滚段,每个都一样大,分歧大小的回滚段没有什么意义,细碎是随机选择的。
--建几何个,根据并发造访用户的几何,
--假定你们公司每天有50-100个人员运用Oracle细碎开辟的办理软件,应该20个以上
create public rollback segment rb01 tablespace rollback_data1;
create public rollback segment rb02 tablespace rollback_data1;
create public rollback segment rb03 tablespace rollback_data1;
create public rollback segment rb04 tablespace rollback_data1;
create public rollback segment rb05 tablespace rollback_data1;
create public rollback segment rb06 tablespace rollback_data1;
create public rollback segment rb07 tablespace rollback_data1;
create public rollback segment rb08 tablespace rollback_data1;
create public rollback segment rb09 tablespace rollback_data2;
create public rollback segment rb10 tablespace rollback_data2;
--前8个建在回滚表空间1中,后8个在回滚表空间2
create public rollback segment rb11 tablespace rollback_data2;
create public rollback segment rb12 tablespace rollback_data2;
create public rollback segment rb13 tablespace rollback_data2;
create public rollback segment rb14 tablespace rollback_data2;
create public rollback segment rb15 tablespace rollback_data2;
create public rollback segment rb16 tablespace rollback_data2;
create public rollback segment rb17 tablespace rollback_data2;
create public rollback segment rb18 tablespace rollback_data2;
create public rollback segment rb19 tablespace rollback_data2;
create public rollback segment rb20 tablespace rollback_data2;
--使回滚段online,即有用
alter rollback segment rb01 online;
alter rollback segment rb02 online;
alter rollback segment rb03 online;
alter rollback segment rb04 online;
alter rollback segment rb05 online;
alter rollback segment rb06 online;
alter rollback segment rb07 online;
alter rollback segment rb08 online;
alter rollback segment rb09 online;
alter rollback segment rb10 online;
alter rollback segment rb11 online;
alter rollback segment rb12 online;
alter rollback segment rb13 online;
alter rollback segment rb14 online;
alter rollback segment rb15 online;
alter rollback segment rb16 online;
alter rollback segment rb17 online;
alter rollback segment rb18 online;
alter rollback segment rb19 online;
alter rollback segment rb20 online;
--查抄现有回滚段及其形态
col segment format a30
SELECT SEGMENT_NAME,OWNER,TABLESPACE_NAME,SEGMENT_ID,FILE_ID,STATUS FROM DBA_ROLLBACK_SEGS;
--查抄数据文件及其地点表空间、大小、形态
col file_name format a40
col tablespace_name format a20
select file_name,file_id,tablespace_name,bytes,status from dba_data_files;
至此,表空间从新狡计终了,这里讲的比力简易,尚有很多几何参数值得设置,可以大概把Oracle设置到最优的境地,
表空间设置完了,下面,就该好好的整顿一下Oracle的内存区了,
Oracle很居心思,内存越大,效果越光鲜明显,所以有需求好好调停一下SGA区,也就是首要设置装备安插ininorcl.ora参数文件。
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