oracle 對象許可權

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drop user test cascade;
create user test identified by test;
grant create session to test;
grant create any table to test;
conn test/test;
create table scott.test (id number);
conn scott/tiger;
insert into test values(888);
select * from test;
conn test/test;
select * from scott.test;
conn scott/tiger;
grant select on test to test;
conn test/test;
select * from scott.test;
conn scott/tiger;
alter table test add(name varchar(10));
select * from test;
// 授予更新許可權時可以更加細緻地加到某一列上
grant update(name) on test to test;
conn test/test;
update scott.test set name = ‘李四‘;
update scott.test set id = ‘999‘;

conn sys as sysdba;

create user test1 identified by test1;
create user test2 identified by test2;
grant create session to test1, test2;
// 後面的選項表示可以級聯授權
grant select on scott.emp to test1 with grant option;
conn test1/test1;
grant select on scott.emp to test2;
conn test2/test2;
select * from scott.emp;
conn sys as sysdba;
revoke select on scott.emp from test1;
conn test2/test2;
select * from scott.emp; //查不到了

 

oracle 對象許可權