表空间管理

1.       create tablespaces

sql> create tablespace tablespace_name datafile 'c:\oracle\oradata\file1.dbf' size 100m,

sql> 'c:\oracle\oradata\file2.dbf' size 100m minimum extent 550k [logging/nologging]

sql> default storage (initial 500k next 500k maxextents 500 pctinccease 0)

sql> [online/offline] [permanent/temporary] [extent_management_clause]

 

2.       locally managed tablespace

sql> create tablespace user_data datafile 'c:\oracle\oradata\user_data01.dbf'

sql> size 500m extent management local uniform size 10m;

 

3.temporary tablespace

sql> create temporary tablespace temp tempfile 'c:\oracle\oradata\temp01.dbf'

sql> size 500m extent management local uniform size 10m;

 

4.change the storage setting

sql> alter tablespace app_data minimum extent 2m;

sql> alter tablespace app_data default storage(initial 2m next 2m maxextents 999);

 

5.taking tablespace offline or online

sql> alter tablespace app_data offline;

sql> alter tablespace app_data online;

 

6.read_only tablespace

sql> alter tablespace app_data read only|write;

 

7.droping tablespace

sql> drop tablespace app_data including contents;

 

8.enableing automatic extension of data files

sql> alter tablespace app_data add datafile 'c:\oracle\oradata\app_data01.dbf' size 200m

sql> autoextend on next 10m maxsize 500m;

 

9.change the size fo data files manually

sql> alter database datafile 'c:\oracle\oradata\app_data.dbf' resize 200m;

 

10.Moving data files: alter tablespace

sql> alter tablespace app_data rename datafile 'c:\oracle\oradata\app_data.dbf'

sql> to 'c:\oracle\app_data.dbf';

 

11.moving data files:alter database

sql> alter database rename file 'c:\oracle\oradata\app_data.dbf'

sql> to 'c:\oracle\app_data.dbf';