Oracle database synonym creation

        Oracle Databases are distinguished by users , Before when developing a project , Called the electronic signature resource of another project , The problem is , The table of the electronic signature is under another user , After searching, find the processing method , My solution is to create a oracle Synonyms of ,

        This case ： stay vincent Users can access scott Of emp surface

      1. Create user with administrator account vincent：

SQL> conn /as sysdba
Connected to Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 
Connected as [email protected]

SQL> create user vincent identified by root;
User created

SQL> grant create session,connect,resource to vincent;
Grant succeeded

          2. Use the administrator account to give the current account 【vincent】 give CREATE SYNONYM Authority

SQL> grant create synonym to vincent;
Grant succeeded

       3. stay scott Under the user , Do the following ：【 to vincent User assignment query emp Table authority 】

SQL> grant select on emp to vincent;
Grant succeeded

       4. stay vincent Create synonyms under user ：

SQL> create or replace synonym emp2 for scott.emp;

here , stay vincent Under the user , adopt select * from emp2 You can check scott User emp data