查询表达式中的语法错误（缺少运算符）

Question

我用SQL编写了一个查询，并想在Microsoft Access 2010中使用它。我做了大多数必要的翻译，但是好像错过了一个。 但是，我找不到错误所在。 谁能找到错误？

SELECT dbo_job.item, sub2.item AS NewCheck
FROM dbo_job 
LEFT JOIN (
    SELECT dbo_job.item
    FROM dbo_job 
    WHERE dbo_job.job_date<=#7/13/2015# AND dbo_job.job_date>=#6/22/2015#
    GROUP BY dbo_job.item) 
AS sub ON sub.item=dbo_job.item
LEFT JOIN (
    SELECT dbo_job.item
    FROM dbo_job
    WHERE dbo_job.job_date<#7/13/2015#
    GROUP BY dbo_job.item)
AS sub2 ON sub2.item=dbo_job.item
WHERE dbo_job.job_date=#7/20/2015# AND sub.item IS NULL
GROUP BY dbo_job.item, sub2.item

Answer 1

MS Access在连接周围需要附加括号，因此这可能起作用：

SELECT dbo_job.item, sub2.item AS NewCheck
FROM (dbo_job LEFT JOIN
      (SELECT dbo_job.item
       FROM dbo_job 
       WHERE dbo_job.job_date<=#7/13/2015# AND dbo_job.job_date>=#6/22/2015#
       GROUP BY dbo_job.item
      ) AS sub
      ON sub.item = dbo_job.item
     ) LEFT JOIN
     (SELECT dbo_job.item
      FROM dbo_job
      WHERE dbo_job.job_date<#7/13/2015#
      GROUP BY dbo_job.item
     ) AS sub2
     ON sub2.item = dbo_job.item
WHERE dbo_job.job_date = #7/20/2015# AND sub.item IS NULL
GROUP BY dbo_job.item, sub2.item;