Question

我如何才能完全加入这两个表？这两个查询都返回相同的列。

预期的<MyComponent item-id="{{$item->id}}"/>字段为JOIN。

已经尝试了很少的选项，但始终会出现语法错误。

查询1：

MyOrder

查询2：

SELECT MIN(b.TimeFrame) Nazwa, MIN(b.MyOrder) MyOrder, SUM(b.Remaining) SumaFaktury
FROM (
    SELECT
    CASE
        WHEN a.DaysLate BETWEEN 1 AND 14 THEN '1 to 14'
        WHEN a.DaysLate BETWEEN 15 AND 30 THEN '15 to 30'
        ELSE 'over 30'
    END AS TimeFrame,
    CASE
        WHEN a.DaysLate BETWEEN 1 AND 14 THEN 1
        WHEN a.DaysLate BETWEEN 15 AND 30 THEN 2
        ELSE 3
    END AS MyOrder,
    Remaining, DaysLate
    FROM (
        SELECT DATEDIFF(dd, TZ, GETDATE()) DaysLate, (WN - MA) Remaining
        FROM dbo.TableA
        WHERE DATEDIFF(dd, TZ, GETDATE()) > 0
        ) a
    ) b
GROUP BY b.MyOrder
ORDER BY b.MyOrder ASC

Answer 1

只需将每个查询用作表表达式来执行FULL OUTER JOIN，并用不同的名称命名每个查询。 ORDER BY仅需提取一次，最后只包含一次。

例如：

select
  a.Nazwa as a_Nazwa, -- selected columns here
  b.Nazwa as b_Nazwa,
  coalesce(a.MyOrder, b.MyOrder) as MyOrder,
  a.SumaFaktury as a_SumaFaktury,
  b.SumaFaktury as b_SumaFaktury
from ( -- query 1
  SELECT
    MIN(b.TimeFrame) Nazwa, MIN(b.MyOrder) MyOrder,
    SUM(b.Remaining) SumaFaktury
  FROM (
      SELECT
      CASE
          WHEN a.DaysLate BETWEEN 1 AND 14 THEN '1 to 14'
          WHEN a.DaysLate BETWEEN 15 AND 30 THEN '15 to 30'
          ELSE 'over 30'
      END AS TimeFrame,
      CASE
          WHEN a.DaysLate BETWEEN 1 AND 14 THEN 1
          WHEN a.DaysLate BETWEEN 15 AND 30 THEN 2
          ELSE 3
      END AS MyOrder,
      Remaining, DaysLate
      FROM (
          SELECT DATEDIFF(dd, TZ, GETDATE()) DaysLate, (WN - MA) Remaining
          FROM dbo.TableA
          WHERE DATEDIFF(dd, TZ, GETDATE()) > 0
          ) a
      ) b
  GROUP BY b.MyOrder
) a
full outer join ( -- query 2
  SELECT
    MIN(b.TimeFrame) Nazwa, MIN(b.MyOrder) MyOrder, 
    SUM(b.Remaining) SumaFaktury
  FROM (
      SELECT
      CASE
          WHEN a.DaysLate BETWEEN 1 AND 14 THEN '1 to 14'
          WHEN a.DaysLate BETWEEN 15 AND 30 THEN '15 to 30'
          ELSE 'over 30'
      END AS TimeFrame,
      CASE
          WHEN a.DaysLate BETWEEN 1 AND 14 THEN 1
          WHEN a.DaysLate BETWEEN 15 AND 30 THEN 2
          ELSE 3
      END AS MyOrder,
      Remaining, DaysLate
      FROM (
          SELECT DATEDIFF(dd, TERMIN_ZAP, GETDATE()) DaysLate, (SALDO_WN) Remaining
          FROM dbo.TableB
          WHERE DATEDIFF(dd, TERMIN_ZAP, GETDATE()) > 0
          ) a
      ) b
  GROUP BY b.MyOrder
) b on a.MyOrder = b.MyOrder -- the join condition
order by coalesce(a.MyOrder, b.MyOrder) ASC -- the ordering

在主要选择中，您可能不希望使用COALESCE()，这取决于您要如何处理列。

连接两个包含分组和子查询的查询

1 个答案: