创建表空间、用户、扩容、移动数据文件

1、创建新的表空间；

SQL> create tablespace test_data
  2  logging
  3  datafile '/opt/oracle/oradata/bisal/test_data_01.dbf'
  4  size 10M
  5  autoextend on
  6  next 10m maxsize 2000m
  7  extent management local;
Tablespace created.


[oracle@liu bisal]$ ls -rlht
total 1.5G
-rw-r----- 1 oracle oinstall  11M Sep 27 22:56 test_data_01.dbf



2、创建用户；

SQL> create user test_data identified by test_data
  2  default tablespace test_data
  3  temporary tablespace tempts1;
User created.



SQL> select username from dba_users;
USERNAME
------------------------------
TEST_DATA



3、通过修改文件大小与增加文件的方式扩容表空间；

SQL> alter database datafile '/opt/oracle/oradata/bisal/test_data_01.dbf' resize 25m;
Database altered.



[oracle@liu bisal]$ ls -rlht
total 1.5G
-rw-r----- 1 oracle oinstall  26M Sep 27 23:01 test_data_01.dbf



SQL> alter tablespace test_data add datafile '/opt/oracle/oradata/bisal/test_data_02.dbf' size 3m;
Tablespace altered.


[oracle@liu bisal]$ ls -rlht
total 1.5G
-rw-r----- 1 oracle oinstall  26M Sep 27 23:01 test_data_01.dbf
-rw-r----- 1 oracle oinstall 3.1M Sep 27 23:03 test_data_02.dbf


4、人为移动数据文件，检验创建表的效果；

mv test_data_01.dbf ../.

mv test_data_02.dbf ../.

用该用户登录之前需要赋予相关权限：

CREATE SESSION权限：

[oracle@liu Desktop]$ sqlplus test_data/test_data
SQL*Plus: Release 10.2.0.1.0 - Production on Fri Sep 27 23:40:23 2013
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
ERROR:
ORA-01045: user TEST_DATA lacks CREATE SESSION privilege; logon denied
Enter user-name: 
ERROR:
ORA-01017: invalid username/password; logon denied
Enter user-name: ERROR:
ORA-01017: invalid username/password; logon denied

SP2-0157: unable to CONNECT to ORACLE after 3 attempts, exiting SQL*Plus



CREATE TABLE权限：

SQL> create table test (x int);
create table test (x int)
*
ERROR at line 1:
ORA-01031: insufficient privileges



SQL> grant create table to test_data;
Grant succeeded.



增加用户在表空间的使用量限制：

SQL> create table test (x int);
create table test (x int)
*
ERROR at line 1:
ORA-01950: no privileges on tablespace 'TEST_DATA'



创建时错误：

SQL> create table test(x int);
create table test(x int)
*
ERROR at line 1:
ORA-01116: error in opening database file 7
ORA-01110: data file 7: '/opt/oracle/oradata/bisal/test_data_02.dbf'
ORA-27041: unable to open file
Linux Error: 2: No such file or directory
Additional information: 3


SQL> create table test(x int);
Table created.