ORACLE应用经验(5)-表空间

一、进入oracle下# su - oracleas4101> lsnrctl startas4101> svrmgrlsvrmgrl> connect internal;svrmgrl> shutdown immediate;svrmgrl> startup二、查看有哪些表空间svrmgrl> SELECT * FROM DBA_TABLESPACES;         SYSTEM   RBS     TEMP     TOOLS    USERS三、将USERS表空间DROPsvrmgrl> ALTER TABLESPACE USERS OFFLINE;svrmgrl> DROP TABLESPACE USERS;四、查看表空间的空余大小svrmgrl> SELECT TABLESPACE_NAME,SUM(BYTES)/1024/1024 MB            FROM DBA_FREE_SPACE GROUP BY TABLESPACE_NAME;TABLESPACE_NAME                       MB------------------------------ ---------DD_DATA                        1136.3672DD_IDX                         787.18164JX_DATA                        827.94531JX_IDX                         503.16016RBS                             371.9668SYSTEM                         457.81445TEMP                           1499.9961TOOLS                          36.462891五、查看数据文件放置的路径svrmgrl> SELECT TABLESPACE_NAME,BYTES/1024/1024 MB,FILE_NAME          FROM DBA_DATA_FILES;TABLESPACE_NAME                       MB FILE_NAME------------------------------ --------- ---------------SYSTEM                               500 /dev/rdrd/drd4RBS                                  500 /dev/rdrd/drd14RBS                                 1000 /dev/rdrd/drd15RBS                                  500 /dev/rdrd/drd32TOOLS                                 50 /dev/rdrd/drd5TEMP                                1000 /dev/rdrd/drd22TEMP                                 500 /dev/rdrd/drd23JX_DATA                              500 /dev/rdrd/drd33六、对应SYSTEM表空间有一个回退段，为SYSTEM，另有一些回退段是属于RBS的，    先将RBS下的回退段都OFFLINE，并DROP，然后将RBS表空间DROP并重新创建，    最后，创建回退段。回退段4个，每个大小为RBS/4，这个值可以当作OPTIMAL值，    即等于INITIAL+NEXT*MAXEXTENTSsvrmgrl> 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、查看回退段及表空间的状态,若为ONLINE，即结束，为OFFLINE，要ONLINEsvrmgrl> select SEGMENT_NAME,TABLESPACE_NAME,status from DBA_ROLLBACK_SEGS;svrmgrl> ALTER ROLLBACK SEGMENT R01 ONLINE;八、临时表空间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、工具表空间TOOLS大小为50M足够用，系统表空间SYSTEM为100M足够用。十、创建数据表空间：    DD_DATA、DD_IDX、JX_DATA、JX_IDX、SF_DATA、SF_IDX、JF_DATA、JF_IDXsvrmgrl> 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、创建用户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、用户权限svrmgrl> grant connect,resources,imp_full_database,exp_full_database,         create public synonym,drop public synonym to ddbh;     若要查看V$SESSION，KILL SESSION, DROP USER,CREATE USER等,则svrmgrl> grant select on v_$session to public;svrmgrl> grant alter system,drop user,create user to "*******";