Question

我正在尝试提取出发日期超过30天，60天和90天的Folio ID（全部来自同一个文件）。如果其中一个ID也有一个日期少于30天的事件，我不希望该ID被拉出。我还希望仅当该ID的出发日期大于30,60或90天时，为Folio ID提取空白（null？）出发日期。

我尝试了左，内，右和嵌套连接的多种组合（感谢前一个问题提供的答案）。我已经接近了，但由于某种原因，我的查询并没有拉出任何空白的出发日期，即使我知道它们存在。到目前为止，我的查询如下：

 sSQL = "SELECT t1.[Folio Type], t1.[Folio ID],t1.[Departure Date],t1.[Folio Total]"
    sSQL = sSQL & " FROM"
    sSQL = sSQL & "  (SELECT [Folio Type], [Folio ID],[Folio Total],[Departure Date]"
    sSQL = sSQL & "   FROM [Individual Folios$B2:O150000] GROUP BY [Folio Type],[Folio ID],[Folio Total],[Departure Date]"
    sSQL = sSQL & " HAVING [Folio Total] <> 0 and [Departure Date] < " & G30E & ") As t1 "
    sSQL = sSQL & " LEFT JOIN"
    sSQL = sSQL & "  (SELECT [Folio Type],[Folio ID],[Departure Date],[Folio Total]"
    sSQL = sSQL & "   FROM [Individual Folios$B2:O150000]"
    sSQL = sSQL & "   group by [Folio Type],[Folio ID],[Departure Date],[Folio Total]"
    sSQL = sSQL & "   HAVING [Folio Total] <> 0 and ([Departure Date] > " & G30E & " or [Departure Date] is null)) as t2"
    sSQL = sSQL & "   on t1.[Folio ID] = t2.[Folio ID]"
    sSQL = sSQL & "   where t2.[Folio ID] is null"

我也有类似的查询（尝试使用嵌套连接尝试完成与第一个查询相同的操作）。我认为这两个查询应该提取相同的值，但总数是不同的：

 sSQL = "SELECT t1.[Folio Type], t1.[Folio ID],t1.[Departure Date],t1.[Folio Total]"
sSQL = sSQL & " FROM"
sSQL = sSQL & "  ((SELECT [Folio Type], [Folio ID],[Folio Total],[Departure Date]"
sSQL = sSQL & "   FROM [Individual Folios$B2:O150000] GROUP BY [Folio Type],[Folio ID],[Folio Total],[Departure Date]"
sSQL = sSQL & " HAVING [Folio Total] <> 0 and [Departure Date] < " & G30E & ") As t1 "
sSQL = sSQL & " LEFT JOIN"
sSQL = sSQL & "  (SELECT [Folio Type],[Folio ID],[Departure Date],[Folio Total]"
sSQL = sSQL & "   FROM [Individual Folios$B2:O150000]"
sSQL = sSQL & "   group by [Folio Type],[Folio ID],[Departure Date],[Folio Total]"
sSQL = sSQL & "   HAVING [Folio Total] <> 0 and [Departure Date] > " & G30E & ") as t2"
sSQL = sSQL & "   on t1.[Folio ID] = t2.[Folio ID])"
sSQL = sSQL & " LEFT JOIN"
sSQL = sSQL & "  (SELECT [Folio Type],[Folio ID],[Departure Date],[Folio Total]"
sSQL = sSQL & "   FROM [Individual Folios$B2:O150000]"
sSQL = sSQL & "   group by [Folio Type],[Folio ID],[Departure Date],[Folio Total]"
sSQL = sSQL & "   HAVING [Folio Total] <> 0 and [Departure Date] is null) as t3"
sSQL = sSQL & "   on t1.[Folio ID] = t3.[Folio ID]"
sSQL = sSQL & "   where t2.[Folio ID] is null or t3.[Folio ID] is null"

非常感谢任何帮助。

Answer 1

尝试使用一系列UNION查询。每个查询都有其WHERE子句来限制返回的记录。

由于大部分SELECT都是相同的，我使用WITH子句：

WITH A AS(SELECT * FROM [FoliosXXX])

SELECT * FROM A WHERE [Departure DATE] <= 30
UNION
SELECT * FROM A WHERE [Departure DATE] > 30 AND [Departure DATE] <= 60
UNION
SELECT * FROM A WHERE [Departure DATE] >= 60

您可以使SELECT for A成为复杂/加入/等。查询。不确定GROUPing是否需要将其添加到以后的SELECT中。

变体是使用UNIONs并在SELECT中使用NOT IN子句来排除已经处理的记录。

Excel / VBA / ADO - SQL查询未返回正确结果

1 个答案: