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1.创建用户
su - oracle
sqlplus /nolog
SQL> conn / as sysdba;
SQL>create user zhangsan identified by zhangsan
SQL> grant dba to zhangsan ;
SQL> conn zhangsan /zhangsan
SQL> select * from user_sys_privs;
也可以CREATE USER 用户 IDENTIFIED BY 用户密码 DEFAULT TABLESPACE NOTIFYDB;
2.创建表空间
create temporary tablespace zhangsan_temp tempfile '/data/oracle/oradata/test/sysdate_temp01.dbf' --//Linux下的文件系统
size 64m autoextend on next 64m maxsize 2048m extent management local;
3.赋予权限
grant connect,resource,dba to 用户;给dba权限
grant connect,resource to 用户;
grant unlimited tablespace to 用户;
grant create database link to 用户;
grant select any sequence,create materialized view to 用户;
grant unlimited tablespace to 用户;//授予不限制的表空间
grant select any table to 用户;//授予查询任何表
grant是关键字，select any table是权限,to后面是用户账号
4.管理用户
create user zhangsan;//在管理员帐户下，创建用户zhangsan
alert user scott identified by tiger;//修改密码
5.查看都有哪些用户
select username from dba_users ;
6.连接成功
SQL> conn 用户/密码;
Connected.
7.查看各表空间分配情况。
select tablespace_name, sum(bytes) / 1024 / 1024 from dba_data_files group by tablespace_name;
8.查看各表空间空闲情况。
select tablespace_name, sum(bytes) / 1024 / 1024 from dba_free_space group by tablespace_name;
9.更改数据表大小(10G)
alter database datafile '/ora/oradata/radius/undo.dbf' resize 10240m；
10。查看表空间是否自动增长
SELECT FILE_NAME,TABLESPACE_NAME,AUTOEXTENSIBLE FROM dba_data_files;
11.设置表空间自动增长
ALTER DATABASE DATAFILE 'c:\SmartDB01.ora' AUTOEXTEND ON;//打开自动增长
ALTER DATABASE DATAFILE 'c:\SmartDB01.ora' AUTOEXTEND ON NEXT 200M ;//每次自动增长200m
ALTER DATABASE DATAFILE 'c:\SmartDB01.ora' AUTOEXTEND ON NEXT 200M MAXSIZE 1024M;//每次自动增长200m，数据表最大不超过1G | 
转播
