系统权限与对象权限
一、系统权限
1、创建用户
sql> create user dog identified by wangwang;
User created
sql> create user pig identified by hengheng;
User created
sql> create user fox identified by youyou;
User created
sql> create user cat identified by miaomiao;
User created
2、给cat赋权
sql> grant create session,select any table,create table,create view to cat;
Grant succeeded
3、cat给dog赋权
sql> conn cat/miaomiao;
Connected to Oracle Database 11g Enterprise Edition Release 11.2.0.1.0
Connected as cat
sql> grant create session,create view to dog;
grant create session,create view to dog
ORA-01031: 权限不足
给cat赋权时没有再赋权的权力，需加
:WITH ADMIN OPTION
4、收回权限 revoke
sql> revoke create session,create view from cat;
Revoke succeeded
5、权限查看
sql> select * from dba_sys_privs where grantee='CAT';
GRANTEE PRIVILEGE ADMIN_OPTION
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二、对象权限8个 execute,alter,select,insert,update,delete,index,references 1、授权emp表给所有用户 sql> grant select on emp to public; Grant succeeded 查看 sql> select * from user_tab_privs_made; GRANTEE TABLE_NAME GRANTOR PRIVILEGE GRANTABLE HIERARCHY ------------------------------ ------------------------------ ------------------------------ -------------------- --------- --------- PUBLIC EMP SCott SELECT NO NO 2、授权表中某列给用户 sql> grant update(sal) on emp to cat; Grant succeeded sql> grant update(job) on emp to cat; Grant succeeded 查看 sql> select * from user_col_privs_made; GRANTEE TABLE_NAME COLUMN_NAME GRANTOR PRIVILEGE GRANTABLE ------------------------------ ------------------------------ ------------------------------ ------------------------------ -------------------- --------- CAT EMP SAL SCott UPDATE NO CAT EMP JOB SCott UPDATE NO
