数据库表，3个字段，姓名，薪水，部门，用一条sql语句求每个部门薪水最高的人姓名

select t1.姓名 from 表 t1,

(select max(薪水) 薪水,部门 from 表 group by 部门) t2

where t1.部门=t2.部门 and t1.薪水 = t2.薪水



create table t1

(

NAME VARCHAR2(10),

salary VARCHAR2(10),

dept VARCHAR2(10)

);

insert into t1(name,salary,dept) values('name1','100','d1');

insert into t1(name,salary,dept) values('name2','200','d1');

insert into t1(name,salary,dept) values('name3','100','d1');

insert into t1(name,salary,dept) values('name4','200','d1');

insert into t1(name,salary,dept) values('name5','100','d3');

insert into t1(name,salary,dept) values('name6','200','d3');



select t1.name

from t1, (select max(salary) salary, dept from t1 group by dept) t2

where t1.dept = t2.dept

and t1.salary = t2.salary