create table Emp
(
 eid char(20) primary key,
 ename char(20),
 age integer check (age > 0),
 did char(20),
 salary float,
)
create table Dept
(
 did char(20) primary key,
 dname char(20),
 mgr_did char(20), 
)
alter table Emp add constraint fk_emp_did foreign key (did) references Dept(did)
alter table Dept add constraint fk_dept_mgrdid foreign key (mgr_did) references Emp(eid)

题目：写出一条SQL语句，查询工资高于10000，且与他所在部门的经理年龄相同的职工姓名。

select * from Emp a, Dept b, Emp c where a.did = b.did and b.mgr_did = c.eid and a.salary > 10000 and a.age = c.age;