SQL Server：查询联接多个表和分组依据

Question

我想加入以下三个SQL Server表，如图所示。我知道他们必须template.html，但是我认为正是{% if AssocAuthDomains or AssocNotAuthDomains %} <div class="acctDomains"> <h3 class="Titles"><img src="{% static "img/templated/acct/AuthDomainSm.png" %}" width="22" height="22" alt="Authorized Domain(s)" /> Verified Domains</h3> <ul> {% for authdomain in AssocAuthDomains %} <li>{{ authdomain }}<span><a class="scan" href="/Account/PerformScan/?d={{ authdomain }}">Scan now</span></a></li> {% endfor %} </ul> <h3 class="Titles"><img src="{% static "img/templated/acct/UnAuthDomain.png" %}" width="22" height="22" alt="Unverified Domain(s):" /> Unverified Domains</h3> <ul> {% for notauthdomain in AssocNotAuthDomains %} <li>{{ notauthdomain }}<span><a class="scan" href="Verify Now">Verify now</span></a></li> {% endfor %} </ul> </div><!--acctDomains--> 才使我失望。我认为它需要Tld object (1) Tld object (2) 中的websiteabc.com吗？

JOIN

Answer 1

您可以简单地JOIN前两个表，然后将聚合查询转换为子查询，您也可以JOIN：

SELECT 
    ActJobs.ID as JobID, 
    ActJobs.JobName, 
    ActJobs.CustomerID,
    CONCAT(Cus.LastName, ', ', Cus.FirstName) as Customer,
    Est.Price
FROM 
    Job.ActiveJobsTbl AS ActJobs
    INNER JOIN Customer.CustomerTbl AS Cus ON Cus.ID = ActJobs.CustomerID
    INNER JOIN (
        SELECT ID_Job, SUM(ItemAmount + SalesTax) As Price 
        FROM Job.EstimateTbl
        GROUP BY ID_Job
    ) AS Est ON Est.ID_Job = ActJobs.ID

Answer 2

使用标量子查询并加入

// utils.js
module.exports={
    print:function(){console.log('print called')}
}