Sql Query打印ename和dname请分享我如何在oracle或Mysql中编写查询

Question

员工
开斋节工资 1个查尔斯3000
2 kiran 2000
3 naveen 8000
4 manju 7000

系

deptid dname
101名查尔斯 102 kiran
103 naveen
104 manju

注册

deptid eid

101 1
102 2
103 3
104 4

向print（employee）ename和（department）dname写一个查询。

Answer 1

SELECT a.ename, b.depart, c.eid
FROM  employee a
INNER JOIN department b on a.ename=b.dname
INNER JOIN register c on b.deptid=c.deptid
where a.ename=b.dname and b.deptid=c.deptid;