用于从两个表中检索数据的SQL查询

Question

下面有两个表格

员工表：empid, empname, deptid

部门表：deptid, deptname

然后将查询写入“列出dept name = computer的所有员工”

Answer 1

这应该非常简单，

SELECT  a.empid, a.empname, b.deptname
FROM    employee a
        INNER JOIN department b
            ON a.deptid = b.deptid
ORDER   BY  b.deptname, a.empname

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Answer 2

SELECT e.empname, deptname
FROM employee e
    INNER JOIN department d
    ON e.deptid = d.deptid
GROUP BY emptname, deptname

Answer 3

SELECT empname, deptname 
from employee, department
where employee.deptid=department.deptid
and department.deptname='computer';

计算机必须根据您表格中的值

区分大小写