Oracle synonym(同义词)
Oracle 同义词的创建、删除及查看
1).创建同义词：
create public synonym table_name for user.table_name;
2).删除同义词：
drop public synonym table_name;
3).查看所有同义词：
select * from dba_synonyms;
create public synonym table_name for user.table_name;
drop public synonym table_name;
select * from dba_synonyms;