sql - sql server 如何将多个结果合并到一行中？

Question

如何在 1 行中显示这 3 个结果？我正在使用 Nortwnd 示例数据库：

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

我尝试了 Union 和 intersect 但无法得到结果。

所以我想要类似的东西：

CompanyName         | LastName | CategoryName
Alfreds Futterkiste | Buchanan | Beverages

Answer 1

我不明白你为什么想要这样的结果，但以下内容会得到你想要的：

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

Answer 2

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)