Question

我需要两个表来查询数据，如下所示：

EMPLOYEE (FNAME,MINIT,LNAME,SSN(PK),ADDRESS,DEPARTMENTNUM(FK-DEPARTMENT))
DEPARTMENT (DNAME,DEPARTMENTNUM(PK))

我需要使用DEPARTMENT TABLE中的DNAME查找FNAME，MINIT，LNAME。

另外，我想知道如何将三者（FNAME，MINIT，LNAME）合并为简单的NAME。

谢谢

Answer 1

试试这个：

SELECT D.DNAME,E.FNAME+' '+E.MINIT+' '+E.LNAME as NAME
FROM EMPLOYEE E INNER JOIN
DEPARTMENT D ON E.DEPARTMENTNUM=D.DEPARTMENTNUM

Answer 2

使用CONCAT（）函数

select CONCAT(FNAME, " ", MINIT, ".", " ", LNAME) as NAME
FROM EMPLOYEE E INNER JOIN DEPARTMENT D
ON
E.DEPARTMENTNUM = D.DEPARTMENTNUM
AND DNAME = <your-dept>

检索在部门工作的员工的姓名和地址

2 个答案: