Orcle11G创建表空间,创建用户,授权等操作

--创建表空间
CREATE   TABLESPACE caiyl
DATAFILE ‘D:\Oracle\app\caiyl\oradata\orcl\caiyl_space.dbf‘ size 500m
AUTOEXTEND ON 
NEXT 200M MAXSIZE 20480M 
EXTENT MANAGEMENT LOCAL;


--创建临时表空间

CREATE TEMPORARY TABLESPACE caiyl_temp

TEMPFILE ‘D:\Oracle\app\caiyl\oradata\orcl\caiyl_temp.dbf‘ 

SIZE 200M

AUTOEXTEND ON

NEXT 50M MAXSIZE 20480M

EXTENT MANAGEMENT LOCAL;

--创建用户并指定表空间

CREATE USER caiyl IDENTIFIED BY 123456 DEFAULT TABLESPACE caiyl_space;

--创建用户并指定表空间和临时表空间
CREATE USER caiyl IDENTIFIED BY 123456

DEFAULT TABLESPACE caiyl_space

TEMPORARY TABLESPACE caiyl_temp;

--授权用户
GRANT CREATE USER,DROP USER,ALTER USER ,CREATE ANY VIEW ,

     DROP ANY VIEW,EXP_FULL_DATABASE,IMP_FULL_DATABASE,

     DBA,CONNECT,RESOURCE,CREATE SESSION TO  caiyl;

--授权标准权限(开发权限)
GRANT   CONNECT,RESOURCE   TO  caiy1

--查看临时表空间
SELECT TABLESPACE_NAME FROM DBA_TABLESPACES;

--增加表空间大小
ALTER TABLESPACE caiyl_space ADD DATAFILE ‘D:\Oracle\app\caiyl\oradata\orcl\caiyl_space.dbf‘ size 4096M;

--增加临时表空间大小
ALTER DATABASE TEMPFILE ‘D:\Oracle\app\caiyl\oradata\orcl\caiyl_temp.dbf‘ RESIZE 8192M;
--删除用户
DROP USER caiyl CASCADE    

--删除表空间
DROP TABLESPACE caiyl_space INCLUDING CONTENTS AND DATAFILES;

--查询用户信息
select * from dba_users  order  by   created desc

--查看你能管理的所有用户:
select * from all_users;  

--查看当前用户信息 :
select * from user_users; 

--查看用户权限 
--查看所有用户
SELECT * FROM DBA_USERS;
SELECT * FROM ALL_USERS;
SELECT * FROM USER_USERS; 
--查看用户系统权限
SELECT * FROM DBA_SYS_PRIVS;
SELECT * FROM USER_SYS_PRIVS; 
--查看用户对象或角色权限
SELECT * FROM DBA_TAB_PRIVS;
SELECT * FROM ALL_TAB_PRIVS;
SELECT * FROM USER_TAB_PRIVS; 
--查看所有角色
SELECT * FROM DBA_ROLES; 
--查看用户或角色所拥有的角色
SELECT * FROM DBA_ROLE_PRIVS;
SELECT * FROM USER_ROLE_PRIVS;

oracle(11g) 数据库设置ID自增功能(一共两个步骤):

1.给要实现ID自增的数据表创建一个序列

SQL> CREATE SEQUENCE "序列名称"

increment by 1    ----- 每次递增:1  

start with 1       ----- 从哪开始:1 

nomaxvalue      ----- 递增最大值:没有 

minvalue 1       ----- 递增最小值:1  

NOCYCLE;      ----- 不循环  

2.给要实现ID自增的数据表创建一个触发器

SQL> CREATE OR REPLACE TRIGGER "触发器名称"

BEFORE INSERT ON "要实现ID自增的数据表名称"

FOR EACH ROW  

BEGIN  

SELECT "之前创建的序列名称".nextval INTO :new."要实现ID自增数据表中的ID字段名"  FROM dual;  

END;  

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