加入兩個查詢在Access

Question

我有四個表：

客戶

ID | CLIENT_NUM | Year 

農場

ID | ClientID | FARM_NUM 

場

ID | FarmID | FIELD_NUM | RANK 

SoilSheet

ID | FarmID | FieldID | SAMP_NUM | Year 

我需要從Rank，FIELD_NUM和Year排序的Soilsheet中獲取數據。所以，我試過這個：

SELECT FL.Rank,FL.FIELD_NUM, S.Year, SAMP_NUM 
FROM (((SoilSheet S 
INNER JOIN Farms F ON F.ID = S.FarmID) 
INNER JOIN Clients C ON C.ID = F.ClientID) 
INNER JOIN Fields FL ON FL.ID = S.FieldID) 
WHERE C.CLIENT_NUM = 1 AND F.FARM_NUM = 1 
ORDER BY C.CLIENT_NUM, F.FARM_NUM, FL.Rank, FL.FIELD_NUM, S.Year 

問題是RANK可能會在每年不同，所以它沒有正確排序。例如，我需要按2015年的RANK排序。

通過上述，我得到這樣的結果：

RANK | FIELD_NUM | Year | SAMP_NUM 
    0 |  19-2 | 2015 | 3000 
    2 |  20-1 | 2015 | 3001 
    2 |  20-1 | 2014 | 2002 
    2 |  20-1 | 2015 | 1003 
    20 |  19-2 | 2014 | 2001 

19-2是RANK 0在2015年，但20在2014年因此，我嘗試這樣做：

SELECT FL.Rank,FL.FIELD_NUM, S.Year, SAMP_NUM 
FROM ((Clients C 
INNER JOIN Farms F ON F.ClientID = C.ID) 
INNER JOIN Fields FL ON FL.FarmID = F.ID) 
LEFT JOIN (((SoilSheet S 
INNER JOIN Fields FLS ON FLS.ID = S.FieldID) 
INNER JOIN Farms FS ON FS.ID = S.FarmID) 
INNER JOIN Clients CS ON CS.ID = FS.ClientID) 
ON 
(FLS.FIELD_NUM = FL.FIELD_NUM 
AND FS.FARM_NUM = F.FARM_NUM 
AND CS.CLIENT_NUM = C.CLIENT_NUM) 
WHERE C.CLIENT_NUM = 1 AND F.FARM_NUM = 1 AND C.Year = 2015 
ORDER BY C.CLIENT_NUM, F.FARM_NUM, FL.Rank, FL.FIELD_NUM, S.Year 

這工作正常SQL Server：

RANK | FIELD_NUM | Year | SAMP_NUM 
    0 |  19-2 | 2015 | 3000 
    0 |  19-2 | 2014 | 2001 
    2 |  20-1 | 2015 | 3001 
    2 |  20-1 | 2014 | 2002 
    2 |  20-1 | 2015 | 1003 

在Access中，它給出'Join expression not supported。'。我猜這是因爲Access不喜歡加入INNER連接，但我只是猜測。

任何想法？訂購或另一種方式來加入另一種方式？

Answer 1

您是否試圖將TSQL從SQL Server複製到Access？不幸的是，如果不修改Joins，這將無法正常工作。具體來說，您需要在連接子句的周圍放置括號。

退房此瞭解更多信息：

SQL Inner Joins with multiple tables

Answer 2

我終於得到它的工作

SELECT C1.Year,C1.RANK, C1.FIELD_NUM, C.CLIENT_NUM, F.FARM_NUM FROM 
(SELECT C.Year,FL.RANK, FL.FIELD_NUM, C.CLIENT_NUM, F.FARM_NUM FROM 
((Clients C 
INNER JOIN Farms F ON F.ClientID = C.ID) 
INNER JOIN Fields FL ON FL.FarmID = F.ID)) C1 
LEFT JOIN 
(SELECT S.Year, SAMP_NUM,FLS.FIELD_NUM, FS.FARM_NUM, CS.CLIENT_NUM 
FROM ((SoilSheet S 
INNER JOIN Fields FLS ON FLS.ID = S.FieldID) 
INNER JOIN Farms FS ON FS.ID = S.FarmID) 
INNER JOIN Clients CS ON CS.ID = FS.ClientID) S1 
ON (S1.FIELD_NUM = C1.FIELD_NUM AND S1.FARM_NUM = C1.FARM_NUM 
AND S1.CLIENT_NUM = C1.CLIENT_NUM) 
WHERE C.CLIENT_NUM = 1 AND F.FARM_NUM = 1 AND C.Year = 2015 
ORDER BY FL.Rank, FL.FIELD_NUM