如何将此 T-SQL 查询转换为 Access db 接受？

Question

我正在尝试转换一个查询，以便它可以在 Access DB 上运行。出于某种原因，第二部分中的访问引发了异常

查询表达式中的语法错误'(Select count(p.id) FROM post p..."

在这里您可以看到一切都在 SQL Server 2008 上完美运行：http://www.sqlfiddle.com/#!3/388fc/1

SELECT
   c.id,
   c.CategoryName,
   c.Description,
   (SELECT count(t.id)
    FROM topic t
    WHERE t.categoryId = c.id) AS NumberOfTopics,
   (SELECT count(p.id)
    FROM post p
    JOIN topic t ON p.topicId = t.id
    WHERE t.categoryId = c.id) AS NumberOfPosts,
   (SELECT top 1 max(p.createdOn) 
    FROM post p
    JOIN topic t ON p.topicId = t.id
    WHERE t.categoryId = c.id) AS LastPostDate,
   (SELECT top 1 createdby 
    FROM post p
    JOIN topic t ON p.topicId = t.id
    WHERE t.categoryId = c.id 
    ORDER BY p.createdon DESC) AS byperson
FROM 
   category c;

谢谢

Answer 1

Access 要求您指明连接的类型：inner；剩下;或对。它不会只接受JOIN 作为INNER JOIN 的同义词。

所以让他们都INNER JOIN 看看Access 是否有任何其他投诉。