1.缺省的Oracle命名
当使用ASM + OMF管理时，Oracle会自动分配文件名称，创建相应的文件。
我们创建表空间的工作可以简化为:
create tablespace tablespace_name;
|
一个命令。
以下是Oracle的缺省命名示例:
$ sqlplus "/ as sysdba"
SQL*Plus: Release 10.1.0.3.0 - Production on Thu Jun 16 09:26:22 2005
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.1.0.3.0 - 64bit Production
With the Partitioning and Data Mining options
SQL> select name from v$datafile;
NAME
--------------------------------------------------------------------------------
+DATADG/mmsdb/datafile/system.259.3
+DATADG/mmsdb/datafile/undotbs1.258.3
+DATADG/mmsdb/datafile/sysaux.257.3
+DATADG/mmsdb/datafile/users.256.3
+DATADG/mmsdb/datafile/platform.278.1
+DATADG/mmsdb/datafile/gateway.279.1
6 rows selected.
|
2.自定义名称和文件大小创建
如果我们想自定义文件大小及名称，可以使用如下方法创建:
SQL> create tablespace cumail datafile '+DATADG/mmsdb/datafile/cumail'size 100m;
Tablespace created.
SQL> select name from v$datafile;
NAME
--------------------------------------------------------------------------------
+DATADG/mmsdb/datafile/system.259.3
+DATADG/mmsdb/datafile/undotbs1.258.3
+DATADG/mmsdb/datafile/sysaux.257.3
+DATADG/mmsdb/datafile/users.256.3
+DATADG/mmsdb/datafile/platform.278.1
+DATADG/mmsdb/datafile/gateway.279.1
+DATADG/mmsdb/datafile/cumail
7 rows selected.
SQL> drop tablespace cumail including contents and datafiles;
Tablespace dropped.
|
