Question

我正在试图弄清楚如何将T-SQL查询转换为MSAccess将执行的格式。我对MSAccess很新，所以这就是我的周末。我试图获得这个查询，将我想要的信息提取到MSAccess中：

    SELECT p.person_id, mem.profile_id, nick_name, last_name,  p.postal_code,p.birth_date,p.gender, grade.selected_value
    FROM  dbo.core_profile_member AS mem 
    INNER JOIN dbo.core_person AS p ON mem.person_id = p.person_id  
    LEFT JOIN dbo.evnt_registrant_field AS grade ON mem.person_id = grade.person_id  AND mem.profile_id = grade.profile_id AND grade.custom_field_id=@gradeID
    WHERE mem.status_luid <> 316 AND mem.profile_id IN (@profiles)

我一直在与此作斗争，并阅读各种帖子，试图弄清楚如何让它发挥作用。这是我到目前为止所提出的，但是当代码执行查询时会抛出语法错误。以下是我到目前为止无效的内容：

    strSQL1 = 
    "SELECT p.person_id, mem.profile_id, nick_name, last_name, " & _
    " p.postal_code, p.birth_date, p.gender FROM (" & _
    " dbo_core_profile_member AS mem INNER JOIN dbo_core_person AS p ON mem.person_id = p.person_id " & _
    " LEFT JOIN (SELECT person_id, profile_id, selected_value FROM dbo_evnt_registrant_field " & _
    " WHERE custom_field_id = " & strGradeID & ") AS grade ON mem.person_id = grade.person_id " & _
    " AND mem.profile_id = grade.profile_id) " & _
    " WHERE mem.status_luid <> 316 AND mem.profile_id IN (" & strProfileIDs & ");"

我知道变量工作正常。如果我调试，并在创建该字符串后检查立即窗口，我实际上可以在MSSQL管理工作室中运行它，它工作正常。我确定我错过了SQL生成器不喜欢的一些微妙的MSAccess细微差别。

任何人都有关于我需要修复的内容的输入？使用上面的代码，我在查询表达式中得到“语法错误（缺少运算符）...”错误。

Answer 1

Access需要FROM子句中的括号，其中包含多个连接，并且db引擎对其位置非常挑剔。

我猜这个FROM条款可以起作用。我为 strGradeID 替换了静态值27。

FROM
    (dbo_core_profile_member AS mem
    INNER JOIN dbo_core_person AS p
    ON mem.person_id = p.person_id)
    LEFT JOIN
        (
            SELECT person_id, profile_id, selected_value
            FROM dbo_evnt_registrant_field
            WHERE custom_field_id = 27
        ) AS grade
    ON
            mem.person_id = grade.person_id
        AND mem.profile_id = grade.profile_id

无论我是否正确，您应该尝试使用Access查询设计器在新查询中设置联接。设计者知道在哪里放置括号以保持数据库引擎满意。

在设计器中有一个工作查询，使用 strGradeID 的静态值和 strProfileIDs 的静态值列表，修改您的VBA代码以生成相同的SQL。

Answer 2

strSQL1 = 
    "SELECT p.person_id, mem.profile_id, nick_name, last_name, " & _
    " p.postal_code, p.birth_date, p.gender FROM " & _
    " dbo_core_profile_member AS mem INNER JOIN dbo_core_person AS p ON mem.person_id = p.person_id " & _
    " LEFT JOIN (SELECT person_id, profile_id, selected_value FROM dbo_evnt_registrant_field " & _
    " WHERE custom_field_id = " & strGradeID & ") AS grade ON mem.person_id = grade.person_id " & _
    " AND mem.profile_id = grade.profile_id " & _
    " WHERE mem.status_luid <> 316 AND mem.profile_id IN (" & strProfileIDs & ");"

无法构建MS Access SQL查询

2 个答案: