开启sqlplus
sqlplus /nolog
系统管理员登录
conn orcl/orcl as sysdba
登录其他用户(如其他数据库)
conn 用户名/密码@ora10g_131;
显示当前用户名
show user;

查看用户的表空间
select * from user_users t

导出
C:\Documents and Settings\Administrator>exp platform/platformtest@ora10g_131 file=d:/daochu.dmp

37. 查看數據庫字符狀況?

    SELECT *  FROM NLS_DATABASE_PARAMETERS;

    SELECT *  FROM V$NLS_PARAMETERS;

38. 查詢表空間信息?

    SELECT *  FROM  DBA_DATA_FILES;


//创建临时表空间
create temporary tablespace test_temp
tempfile 'E:\oracle\product\10.2.0\oradata\testserver\test_temp01.dbf'
size 32m
autoextend on
next 32m maxsize 2048m
extent management local;
//创建数据表空间
create tablespace test_data
logging
datafile 'E:\oracle\product\10.2.0\oradata\testserver\test_data01.dbf'
size 32m
autoextend on
next 32m maxsize 2048m
extent management local;
//创建用户并指定表空间
create user testserver_user identified by testserver_user
default tablespace test_data
temporary tablespace test_temp;
//给用户授予权限
grant connect,resource to testserver_user; (db2：指定所有权限)