sql server如何将多个结果合并成一行？

Question

如何在1行中显示这3个结果？我正在使用Nortwnd样本分贝：

select top 1 CompanyName from dbo.Customers 
select top 1 LastName from employees 
select top 1 categoryname from dbo.Categories 

我试过联盟，但不能得到结果。

所以我想是这样的：

CompanyName   | LastName | CategoryName 
Alfreds Futterkiste | Buchanan | Beverages 

Answer 1

试试这个：

select 
CompanyName = (select top 1 CompanyName from dbo.Customers), 
LastName = (select top 1 LastName from employees), 
CategoryName = (select top 1 categoryname from dbo.Categories) 

Answer 2

我不明白你为什么会想这样的结果，但下面会得到你想要的东西：

SELECT TOP 1 CompanyName, 
(
    SELECT TOP 1 LastName FROM dbo.employees 
) AS TopLastName, 
(
    SELECT TOP 1 categoryname FROM dbo.Categories 
) AS TopCategory 
FROM dbo.Customers