Question

我有三个表：Employee，BillingRates和WorkHours。

Employees
------------------------------
EmpID | name | titleID | level  

BillingRates
----------------------
titleID | level | rate

WorkHours
-------------------
EmpID | HoursWorked

此查询为我提供了每位员工的姓名和费率：

select 
    firstname, lastname, rate
from employees 
left join billingrates
    on employees.TitleID = BillingRates.TitleID
    and employees.Level = BillingRates.Level

这给了我EmpID和该员工的总工作时间：

select 
    employees.EmpID, sum(workhours.hoursworked) as TotalHours
from employees 
inner join workhours
    on employees.empid = WorkHours.EmpID
where 
    WH_Month = 4
group by 
    LastName, firstname, employees.EmpID

我需要将费率输出乘以该员工的总工作小时数有人能够协助编写生成该输出的查询吗？

Answer 1

您可以在SQL server

中执行类似的操作

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    LinearLayout linearLayout = (LinearLayout) findViewById(R.id.parent);
    linearLayout.getLayoutTransition().enableTransitionType(LayoutTransition.CHANGING);

    final View listView = findViewById(R.id.list_view);
    View titleRow = findViewById(R.id.titleRow);

    titleRow.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            ViewGroup.LayoutParams params = listView.getLayoutParams();
            params.height = params.height == 0 ? ViewGroup.LayoutParams.WRAP_CONTENT : 0;
            listView.setLayoutParams(params);
        }
    });
}

如何将两个不同查询的结果相乘

1 个答案: