如何查看oracle指定表都有哪些人可以访问?

郑全

这个问题,经常遇到有人问,我的表被人修改了,那么哪些人可以访问这个表呢,能否进行查询,答案是肯定的,我们可以使用数据字典来进行查询:

比如,我们想查看哪些人有权访问departments表:

1.创建用户

sql>conn / as sysdba;

sql> create user zq identified by zq;

sql> grant connect to zq;

sql> create user sztech identified by sztech;
sql> grant connect to sztech;
2.授权给zq带grant option

sql>conn hr/hr;

sql>grant select on departments to zq with grant option;

 

3.zq授权给sztech

sql>conn zq/zq

sql> grant select on departments to sztech;

 

4.检查departments表哪些用户可以访问

sql>conn hr/hr;

sql>

select lpad(grantee,length(grantee)+2*(level-1),'_')  as grantee
from user_tab_privs_made
where table_name='DEPARTMENTS'
start with grantor='HR'
CONNECT BY PRIOR grantee=grantor;

 

以上语句,我们使用了分层查询语句,把传递授权都可以直观的显示出来.

 

GRANTEE
--------------------------------------------------------------------------------
OE
R_AUTH
ZQ
__SZTECH

 

monkeybird

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