同义词创建语法

drop table if exists t1;
create table t1 (col1 int,col2 varchar(10));
insert into t1 values(1,'a');
select * from t1;
create synonym s1 for t1;
insert into s1 values(2,'b');
select * from s1;
update s1 set col2='aaa' where col1=1;
delete from s1 where col1=1;
select * from s1;
drop synonym s1;