Question

我使用ADO在excel中运行SQL。

我在Excel工作簿中有7个表：2014,2015,2016,2017,2018,2019,2020

现在，2014年和2015年已经填补了数据.2016已经填补了一半的数据。

2017,2018,2019,2020没有数据，因为今天仍然是2016年。

然后，我使用from ...[$2014] UNION ALL from ...[$2014] UNION ALL from ...[$2015] UNION ALL from ...[$2016]....UNION ALL from ...[$2020]加入所有表格

后来，我发现当我查阅2016年的信息时，统计数据是完全错误的。我调试了很长时间。然后，我发现问题是2017-2020没有数据。我在2017-2020分别添加一个假行，以便解决问题。

但令人讨厌的是，需要在2017 - 2020年添加假行。

因此，任何建议都可以完全解决问题吗？

SQL （包装在VBA字符串中）：

SELECT officer, NULL,
       SUM(IIF( isnumeric(mkt) = true AND Survey='CPI' AND Activity='FI' AND Outcome= 'C',
           Totalmin, 0 )/468),
       SUM(IIF( isnumeric(Non) = true AND Survey='CPI' AND Activity='FI' AND Outcome= 'C',
           Totalmin, 0 )/468),
       NULL, NULL,
       IIF(ISNULL(SUM(mkt)), 0, SUM(mkt)),
       Sum(Non), SUM(ICP), (SUM(mkt) + SUM(Non) + SUM(ICP)),
       NULL, NULL, NULL,
       COUNT(IIF( Survey='CPI' AND Activity='FI',
             Totalmin, NULL)),
       NULL,
       COUNT(IIF(Survey='CPI' AND Activity='FI' AND
                (Outcome ='C' OR Outcome='D'OR Outcome='O'), Totalmin, NULL )),
       NULL,
       SUM(IIF(Survey='CPI' AND Activity='FI',Totalmin, 0 )),
       NULL,
       SUM(IIF(Survey='CPI' AND Activity='FI' AND
           (Outcome ='C' OR Outcome='D'), Totalmin, 0 ))

FROM (SELECT officer, rank, year, month, day, survey, activity, 
             outcome, mkt, non, totalmin, ICP, tabledate FROM [2014$] 
      UNION ALL SELECT officer, rank, year, month, day, survey, activity,
                       outcome, mkt, non, totalmin, ICP, tabledate FROM [2015$]  
      UNION ALL SELECT officer, rank, year, month, day, survey, activity, 
                       outcome, mkt, non, totalmin, ICP, tabledate FROM [2016$]) as table3

WHERE officer IS NOT NULL 
AND officer <> '' AND officer <> ' ' 
AND tabledate >= # " & frommDate &  "# 
AND tabledate < # " & tooDate & " # 
GROUP BY officer

Answer 1

来自cha评论的伪代码。

declare SQLunion as string

for each worksheets
  if worksheet has data then SQLunion = SQLunion + "select x,y,z from " + worksheet + " union "
next

remove the last "union" from SQLunion
SQLstring = "select a, b, c from (" + SQLunion+ ") where conditions"

SQL UNION ALL错误

1 个答案: