Question

我总是遇到Access SQL问题。语法要求随机添加括号或移动与SQL Server不同的内容。有谁知道这里的语法错误是什么？该错误集中在FROM子句周围。我知道其他条款还可以，但我把它们留给了参考。

更新：简化了更多代码。我主要关注3 FROM条款。

SELECT 

  ...

FROM 

  (((maintable

    INNER JOIN othertable ON (maintable.A = othertable.A) AND (maintable.B = othertable.B))

    INNER JOIN 

        (SELECT

          ...

        FROM

          (thirdtable)
          INNER JOIN fourthtable ON thirdtable.blah = fourthtable.blah

        WHERE

          fourthtable.something <> 1

        GROUP BY

          ...

        )  AS innerselect1 ON (othertable.item = innerselect1.item) AND (othertable.whse = innerselect1.whse)) AS table1)

    JOIN (

            SELECT ...
            FROM (othertable INNER JOIN maintable ON othertable.item = maintable.item)
            GROUP BY ...
            HAVING ...

          ) AS table2 ON table1.item = table2.item

WHERE 

    ... 

GROUP BY 

  ...

HAVING

  ...

UNION ALL

SELECT 

  ...

FROM 

  (((maintable

    INNER JOIN othertable ON (maintable.A = othertable.A) AND (maintable.B = othertable.B))

    INNER JOIN 

        (SELECT

          ...

        FROM

          (thirdtable)
          INNER JOIN fourthtable ON thirdtable.blah = fourthtable.blah

        WHERE

          fourthtable.something <> 1

        GROUP BY

          ...

        )  AS innerselect1 ON (othertable.item = innerselect1.item) AND (othertable.whse = innerselect1.whse)) AS table1)

    LEFT JOIN (

            SELECT ...
            FROM (othertable INNER JOIN maintable ON othertable.item = maintable.item)
            GROUP BY ...
            HAVING ...

          ) AS table2 ON table1.item = table2.item

WHERE 

    table2.item IS NULL 

GROUP BY 

  ...

HAVING

  ...

UNION ALL

SELECT 

  ...

FROM 

  (((maintable

    INNER JOIN othertable ON (maintable.A = othertable.A) AND (maintable.B = othertable.B))

    INNER JOIN 

        (SELECT

          ...

        FROM

          (thirdtable)
          INNER JOIN fourthtable ON thirdtable.blah = fourthtable.blah

        WHERE

          fourthtable.something <> 1

        GROUP BY

          ...

        )  AS innerselect1 ON (othertable.item = innerselect1.item) AND (othertable.whse = innerselect1.whse)) AS table1)

    RIGHT JOIN (

            SELECT ...
            FROM (othertable INNER JOIN maintable ON othertable.item = maintable.item)
            GROUP BY ...
            HAVING ...

          ) AS table2 ON table1.item = table2.item

WHERE 

    table1.item IS NULL  

GROUP BY 

  ...

HAVING

  ...
;

Answer 1

[Access SQL]语法需要随机添加括号

它不是随机的。（我假设你滥用“＃34;随机＆＃34;这个词，就像人们滥用单词＆＃34;字面意思＆＃34;。”

当涉及多个JOIN条件时，Access SQL通常需要括号。也就是说，它倾向于抱怨像这样的结构：

SELECT ...
FROM 
    tbl1 
    INNER JOIN tbl2 ON tbl1.fld = tbl2.fld1
    INNER JOIN tbl3 ON tbl2.fld = tbl3.fld2

相反，它需要围绕其中一个（完整的）INNER JOIN的括号。当我手动编写Access SQL时，我更喜欢使用像这样的缩进

SELECT ...
FROM 
    (
        tbl1 
        INNER JOIN 
        tbl2 
        ON tbl1.fld = tbl2.fld1
    )
    INNER JOIN 
    tbl3 
    ON tbl2.fld = tbl3.fld2

第二个例子：

而不是

SELECT ...
FROM 
    tbl1 
    INNER JOIN tbl2 ON tbl1.fld = tbl2.fld1
    INNER JOIN tbl3 ON tbl2.fld = tbl3.fld2
    INNER JOIN tbl4 ON tbl3.fld = tbl4.fld3

更像是

SELECT ...
FROM 
    (
        (
            tbl1 
            INNER JOIN 
            tbl2 
            ON tbl1.fld = tbl2.fld1
        )
        INNER JOIN 
        tbl3 
        ON tbl2.fld = tbl3.fld2
    )
    INNER JOIN 
    tbl4 
    ON tbl3.fld = tbl4.fld3

Answer 2

Access SQL不支持

FULL OUTER JOIN。

有关解决方法，请参阅例如How do I write a full outer join query in access

或https://stackoverflow.com/search?tab=relevance&q=%5bms-access%5d%20FULL%20OUTER%20JOIN：p

Access SQL视图中的语法错误

2 个答案: