Question

我正在尝试获取销售人员的数据w.r.t Territory他们的工作。我正在使用Adventureworks数据库表Employee，Contact，SalesPerson，SalesTerritory。这是我的疑问：

Select p.FirstName, p.LastName, h.EmployeeID, t.Name as "Territory Name"
from Person.Contact p  
INNER JOIN HumanResources.Employee h ON p.ContactID = h.ContactID
INNER JOIN Sales.SalesPerson s ON  s.SalesPersonID = h.EmployeeID  
INNER JOIN Sales.SalesTerritory t ON s.TerritoryID = t.TerritoryID

此查询的问题是它只产生一个Territory。但是，有销售人员在多个地区工作......我需要完成所有这些工作。

对此有任何帮助将不胜感激。

Answer 1

您必须意味着您想知道员工在一段时间内的工作方式。据我在AdventureWorks2008和AdventureWorks2008R2中看到，Sales.SalesPerson被分配了一个TerritoryID，然后在Sales.SalesTerritoryHistory中，每个BusinessEntityID可以有多个TerritoryID。对于那些DB，请使用：

select      p.FirstName
            ,p.LastName
            ,e.LoginID -- there is no EmployeeID in this version of AdventureWorks
            ,st.Name                        as [TerritoryName]
from        Sales.SalesPerson               as sp
join        Person.Person                   as p
on          p.BusinessEntityID = sp.BusinessEntityID
join        HumanResources.Employee         as e
on          e.BusinessEntityID = sp.BusinessEntityID
join        Sales.SalesTerritoryHistory     as sth
on          sth.BusinessEntityID = sp.BusinessEntityID
join        Sales.SalesTerritory            as st
on          sth.TerritoryID = st.TerritoryID
-- keep the where clause if you want to find only current TerritoryIDs
-- remove the where clause if you want to know all across time
where       GETDATE() between sth.StartDate and isnull(sth.EndDate,'9999-1-1')

澄清AdventureWorks DB的版本，我可以更正错误（但不要说2012，因为我没有安装SQL Server 2012：）

SQL查询不是将所有数据w.r.t返回到Territory Name

1 个答案: