Oracle 多表关联更新

标签：var   value   create   HERE   多表关联   varchar   exist   date   oracl   

create table t1(
　　id number(10),
　　name varchar2(10)
);
create table t2(
　　id number(10),
　　name varchar2(10)
);

insert into t1 values(1,‘06‘);
insert into t1 values(2,‘02‘);
insert into t2 values(3,‘03‘);
insert into t2 values(1,‘01‘);

select * from t1;
select * from t2;

update t1
set t1.name = (select t2.name from t2 where t2.id=t1.id)
where exists (select * from t2 where t2.id=t1.id) ;

Oracle 多表关联更新

标签：var   value   create   HERE   多表关联   varchar   exist   date   oracl   

原文地址：https://www.cnblogs.com/szl6/p/9509537.html