在不同的列中显示查询结果

Question

我试图避免创建 table 来显示这些结果（如果可能）。我想要做的是基本上让我的查询结果看起来像 table，并且有一个用于 fullitemlist 的列，一个用于 'has been ordered' 的列和一个用于 'has not been ordered' 的列。本质上，我正在尝试从我的查询中返回这样的结果集：

> Zip = 55555
> fullitemlist ----- Has Been Ordered ---- Has Not Been Ordered
> Knife Set              1                      0
> Butcher Block          0                      1
> Dishwasher             0                      1
> Hair Dryer             1                      0

我的 tbl_itemlist 中的所有项目依此类推。这是我尝试处理的 3 个 CTE 查询，但它 returns 一个巨大列表中的所有内容，而不是我想要的:)

Declare @zip varchar(5)
Set @zip = '55555'
;With CTE As
(
  Select fullitemlist from tbl_ItemList
  Where zip = @zip
)
,CTE2 As
(
  Select case when hasbeenordered = 1 then 1 else 0 end as 'Has Been Ordered' from tbl_purchasehistory
  WHERE itemid IN (Select itemid from tbl_ItemList where hasbeenordered = 1   and zip = @zip)
)
,CTE3 As
(
  Select case when hasbeenordered = 0 then 1 else 0 end as as 'Has NEVER Been Ordered' from tbl_purchasehistory
  WHERE itemid IN (Select itemid from tbl_ItemList where hasbeenordered = 0 and zip = @zip)
)

SELECT * from CTE
UNION ALL
SELECT * FROM CTE2
UNION ALL
SELECT * FROM CTE3

Answer 1

-- 你可以根据你的问题这样写你的查询，而不是 CTE ,union all,SubQuery 这是最简单的方法。

SELECT fullitemlist
    ,CASE 
        WHEN tp.hasbeenordered = 1
            AND tI.hasbeenordered = 1
            THEN 1
        ELSE 0
        END AS 'Has Been Ordered'
    ,CASE 
        WHEN tp.hasbeenordered = 0
            AND ti.tp.hasbeenordered = 0
            THEN 1
        ELSE 0
        END AS 'Has NEVER Been Ordered'
FROM tbl_ItemList ti
INNER JOIN tbl_purchasehistory tp ON ti.itemid = tp.ItemId
WHERE zip = @zip

在不同的列中显示查询结果

Have Query Results Display In Different Columns

pivot

sql-server-2008