通过两个针对两个不同表中不同列数的选择查询将数据添加到一个表中

Question

我有两个选择查询，每个查询在不同的条件条件下具有不同的列数。我想将从两个选择查询中收集的数据添加到一个表中。 我已经看过做“ UNION”的方法，但是在那种情况下，两个查询中的列数必须相同，如何将两个查询中的数据添加到单个表中。 我的查询如下：

Select 
Village_ID,
Village_Name,
RSP_ID,
Other_Loan_Source,
Informal_Money_Lender_Loans
from(
Select DISTINCT SETTLEMENT_ID as Village_ID,
SETTLEMENT_NAME as Village_Name,
RSP_ID,
(SELECT COUNT(*) FROM PscData where SETTLEMENT_ID  = T.SETTLEMENT_ID 
AND TAKEN_LOAN = 6 )as Other_Loan_Source,
(SELECT COUNT(*) FROM PscData where SETTLEMENT_ID  = T.SETTLEMENT_ID 
AND TAKEN_LOAN = 5 )as Informal_Money_Lender_Loans

FROM PscData as T

)tmp

第二个查询是这样的：

SELECT
        SUM(CASE WHEN  t2.SEX = 1
        THEN 1 ELSE 0 END) AS Total_Males,

        SUM(CASE WHEN  t2.SEX = 2
        THEN 1 ELSE 0 END) AS Total_Females,

        SUM(CASE WHEN   t2.MARITAL_STATUS = 1
        THEN 1 ELSE 0 END) AS Total_Married,
        t1.SETTLEMENT_ID 
FROM PScData t1 
INNER JOIN PscMemberData t2
    ON t2._PARENT_AURI = t1.URI
GROUP BY
    t1.SETTLEMENT_ID
HAVING COUNT(*) > 1;

我如何将这些结果合并到一张表中。

Answer 1

您可以首先使用联合创建表格，并且仅使用两个表格中都存在的字段。 然后，将此表与原始表连接以添加其余字段。

with cte as (
select Village_ID as village_settlement_id
  from #tmp_1
 union 
select SETTLEMENT_ID as village_settlement_id
  from #tmp_2
)
select * 
     , #tmp_1.Village_ID
     , #tmp_1.Village_Name
     , #tmp_1.RSP_ID
     , #tmp_1.Other_Loan_Source
     , #tmp_1.Informal_Money_Lender_Loans
     , #tmp_2.Total_Males
     , #tmp_2.Total_Females
     , #tmp_2.Total_Married
  from cte 
  left join #tmp_1 on cte.village_settlement_id = #tmp_1.Village_ID  
  left join #tmp_2 on cte.village_settlement_id = #tmp_1.SETTLEMENT_ID

Answer 2

您为什么不只向第二个表中添加一个虚拟列？

SELECT
        SUM(CASE WHEN  t2.SEX = 1
        THEN 1 ELSE 0 END) AS Total_Males,

        SUM(CASE WHEN  t2.SEX = 2
        THEN 1 ELSE 0 END) AS Total_Females,

        SUM(CASE WHEN   t2.MARITAL_STATUS = 1
        THEN 1 ELSE 0 END) AS Total_Married,
        t1.SETTLEMENT_ID ,
        '' Informal_Money_Lender_Loans
FROM PScData t1