Question

我有查询，它会针对上周的每个地址返回地址和已完成的订单。我需要在结果集中插入三个虚拟值。

select  ADDRESS
    ,SUM(Case When  OrderDate >= dateadd(dd,(datediff(dd,-53690,getdate()-1)/7)*7,-53690)
              Then 1
            Else 0 
            End) as Completed
from orders 
GROUP BY ADDRESS
order by ADDRESS

结果

地址--------------完成

地址1 ---------------- 3

1地址---------------- 3

2地址---------------- 3

地址4 ---------------- 3

所有这些值都来自数据库，但我想插入三行硬编码值

预期结果

地址--------------完成

地址1 ---------------- 3

1地址---------------- 3

2地址---------------- 3

地址4 ---------------- 3

dummy1 ------------------ 0

dummy2 ------------------ 0

dummy3 ------------------ 0

尝试失败

select  ADDRESS
    ,SUM(Case When  OrderDate >= dateadd(dd,(datediff(dd,-53690,getdate()-1)/7)*7,-53690)
              Then 1
            Else 0 
            End) as Completed
from orders 

union all 
select
    'dummy1', 0
GROUP BY ADDRESS
order by ADDRESS

Answer 1

尝试 -

select  ADDRESS
,SUM(Case When  OrderDate >= dateadd(dd,(datediff(dd,-53690,getdate()-1)/7)*7,-53690)
          Then 1
        Else 0 
        End) as Completed
from orders 
union all 
select
  'dummy1' AS Address, SUM(0) AS Completed 
GROUP BY ADDRESS
order by ADDRESS

Answer 2

检查这个 - 它可以帮助你：

Adding a static value to the results of an SQL query

联盟之后 - 做

选择'dummy1'作为地址，选择1作为已完成

Answer 3

select ADDRESS
      ,SUM(Case When  OrderDate >= dateadd(dd,(datediff(dd,-53690,getdate()-1)/7)*7,-53690)
              Then 1
              Else 0 
              End) as Completed
from orders 
GROUP BY ADDRESS
UNION
select 'dummy1', 0
UNION
select 'dummy2', 0
UNION
select 'dummy3', 0
order by ADDRESS

Answer 4

您可以创建一个虚拟表变量，然后像这样插入所选记录

DECLARE @ordertable (Address varchar(100), Completed int);

//Add your data
INSERT INTO @ordertable (Address, Completed) (
    select  ADDRESS
           ,SUM(Case When  OrderDate >= dateadd(dd,(datediff(dd,-53690,getdate()-1)/7)*7,-53690)
                Then 1
                Else 0 
                End) as Completed
    from orders 
    GROUP BY ADDRESS
    order by ADDRESS)

//Insert dummy data
INSERT INTO @ordertable (Address, Completed) VALUES(dummy1, 0)
INSERT INTO @ordertable (Address, Completed) VALUES(dummy2, 0)
INSERT INTO @ordertable (Address, Completed) VALUES(dummy3, 0)

然后只是SELECT * from @ordertable，你很高兴去！

在select的末尾插入虚拟值

4 个答案: