一、進入oracle下
# su - oracle
as4101> lsnrctl start
as4101> svrmgrl
svrmgrl> connect internal;
svrmgrl> shutdown immediate;
svrmgrl> startup
二、查看有哪些表空間
svrmgrl> SELECT * FROM DBA_TABLESPACES;
SYSTEM RBS TEMP TOOLS USERS
三、將USERS表空間DROP
svrmgrl> ALTER TABLESPACE USERS OFFLINE;
svrmgrl> DROP TABLESPACE USERS;
四、查看錶空間的空餘大小
svrmgrl> SELECT TABLESPACE_NAME,SUM(BYTES)/1024/1024 MB
FROM DBA_FREE_SPACE GROUP BY TABLESPACE_NAME;
TABLESPACE_NAME MB
------------------------------ ---------
DD_DATA 1136.3672
DD_IDX 787.18164
JX_DATA 827.94531
JX_IDX 503.16016
RBS 371.9668
SYSTEM 457.81445
TEMP 1499.9961
TOOLS 36.462891
五、查看數據文件放置的路徑
svrmgrl> SELECT TABLESPACE_NAME,BYTES/1024/1024 MB,FILE_NAME
FROM DBA_DATA_FILES;
TABLESPACE_NAME MB FILE_NAME
------------------------------ --------- ---------------
SYSTEM 500 /dev/rdrd/drd4
RBS 500 /dev/rdrd/drd14
RBS 1000 /dev/rdrd/drd15
RBS 500 /dev/rdrd/drd32
TOOLS 50 /dev/rdrd/drd5
TEMP 1000 /dev/rdrd/drd22
TEMP 500 /dev/rdrd/drd23
JX_DATA 500 /dev/rdrd/drd33
六、對應SYSTEM表空間有一個回退段，為SYSTEM，另有一些回退段是屬於RBS的，
先將RBS下的回退段都OFFLINE，並DROP，然後將RBS表空間DROP並重新創建，
最後，創建回退段。回退段4個，每個大小為RBS/4，這個值可以當作OPTIMAL值，
即等於INITIAL+NEXT*MAXEXTENTS
svrmgrl> ALTER ROLLBACK SEGMENT R01 OFFLINE;
svrmgrl> DROP ROLLBACK SEGMENT R01;
svrmgrl> alter tablespace rbs offline;
svrmgrl> drop tablespace rbs;
svrmgrl> Create TABLESPACE "RBS" DATAFILE
'/dev/rdrd/rbs01.ora' SIZE 500M,
'/dev/rdrd/rbs02.ora' SIZE 500M;
svrmgrl> CREATE ROLLBACK SEGMENT "R01" TABLESPACE "RBS"
STORAGE ( INITIAL 200M NEXT 2M OPTIMAL 250M
MINEXTENTS 2 MAXEXTENTS 25);
七、查看回退段及表空間的狀態,若為ONLINE，即結束，為OFFLINE，要ONLINE
svrmgrl> select SEGMENT_NAME,TABLESPACE_NAME,status from DBA_ROLLBACK_SEGS;
svrmgrl> ALTER ROLLBACK SEGMENT R01 ONLINE;
八、臨時表空間TEMP，先DROP，再重建。
svrmgrl> alter tablespace temp offline;
svrmgrl> drop tablespace temp;
svrmgrl> CREATE TABLESPACE temp DATAFILE
'/dev/rdrd/drd22' SIZE 1000M storage (initial 300m next 20m
minextens 2 maxextents 35 pctincrease 0);
九、工具表空間TOOLS大小為50M足夠用，系統表空間SYSTEM為100M足夠用。
十、創建數據表空間：
DD_DATA、DD_IDX、JX_DATA、JX_IDX、SF_DATA、SF_IDX、JF_DATA、JF_IDX
svrmgrl> CREATE TABLESPACE dd_data DATAFILE
'/dev/rdrd/drd9' SIZE 1000M,
'/dev/rdrd/drd10' SIZE 1000M,
'/dev/rdrd/drd26' SIZE 1000M,
'/dev/rdrd/drd35' SIZE 1000M,
'/dev/rdrd/drd42' SIZE 500M;
十一、創建用戶
svrmgrl> CREATE USER ddbh IDENTIFIED BY ddbh
DEFAULT TABLESPACE dd_data
TEMPORARY TABLESPACE temp
QUOTA UNLIMITED ON dd_data
QUOTA UNLIMITED ON dd_idx
QUOTA UNLIMITED ON rbs
QUOTA UNLIMITED ON temp;
十二、用戶許可權
svrmgrl> grant connect,resources,imp_full_database,exp_full_database,
create public synonym,drop public synonym to ddbh;
若要查看V$SESSION，KILL SESSION, DROP USER,CREATE USER等,則
svrmgrl> grant select on v_$session to public;
svrmgrl> grant alter system,drop user,create user to "*******";
