Question

这是我的问题：我有两个查询，返回的数据如下：

Name    Quantity    Test
-------------------------
X        10          L
X        13          M
X        17          S

Name    Total
-------------
X       87

我需要一个返回如下结果的查询：

Name   Quantity   Test   Total
--------------------------------
X       10          L    87
X       13          M    NULL
X       17          S    NULL

查询：

SELECT ag.vendnm
    ,bo3.u_nome
    ,bi.ETTDEB
    ,v.total2019
FROM bo(NOLOCK)
INNER JOIN bi(NOLOCK) ON (bi.bostamp = bo.bostamp)
INNER JOIN bi2(NOLOCK) ON (bi2.bi2stamp = bi.bistamp)
INNER JOIN bo2(NOLOCK) ON (bo2.bo2stamp = bo.bostamp)
INNER JOIN bo3(NOLOCK) ON (bo3.bo3stamp = bo.bostamp)
INNER JOIN ag(NOLOCK) ON (ag.nome = bo3.u_nome)
INNER JOIN (
    SELECT cliente
        ,sum(valor) AS total2019
    FROM u_vendas2019
    WHERE month(data) <= month(getdate())
    GROUP BY cliente
    ) AS v ON (v.cliente = bo3.u_nome)
WHERE bo.ndos = 1
    AND year(bo.dataopen) = '2020'
    AND bo3.u_nome = 'Caroll'
    AND bo2.anulado = 0
GROUP BY ag.vendnm
    ,bo3.u_nome
    ,v.total2019
    ,bi.ETTDEB

我尝试使用左联接，但是没有用。不知道该怎么做。

Answer 1

    select a.NAME,
           a.QUANTITY,
           a.TEST,
           b.TOTAL
      from TABLE_A a 
 left join TABLE_B b on a.NAME = b.NAME

Answer 2

尝试类似的方法：据我了解，您只希望在每个不同名称的第4栏中输入

select  table1.name,table1.quantity,table1.test,
    case when k.row = 1 then table2.total
         else null
    end
    from table1 inner join
    (
    select
        name,row_number() over(order by name asc) row
    from table1
    ) k on table1.name = k.name
    inner join table2 on table1.name = table2.name

SQL Server：包括空值的联接表

2 个答案: