更正我的SQL查询中的相关名称

问题描述 投票:1回答:1

我有以下SQL查询,我想在其中提取每个项目的计数及其名称,例如我的SQL数据库中的“ FillingOption”。

我不断收到以下错误消息

Msg 1013,第16级,状态1,第13行FROM子句中的对象“ school_to_classroom_teacher”和“ school_to_classroom_teacher”具有相同的公开名称。使用相关名称来区分它们。

查询如下:

SELECT 
    COUNT(*) AS count,   
    Monday_Sandwich_Roll_Filling.FillingOption
FROM  
    #tempCustomer 
    INNER JOIN Monday_Sandwich_Roll_Filling 
        ON #tempCustomer.LunchMon=Monday_Sandwich_Roll_Filling.FillingOption 
    INNER JOIN school_to_classroom_teacher 
        ON #tempCustomer.teacherID= school_to_classroom_teacher.teacherID 
    INNER JOIN [teacherClassroom Table] 
        ON #tempCustomer.teacherID= [teacherClassroom Table].teacherID 
    inner join school_to_classroom_teacher 
        on [teacherClassroom Table].teacherID=school_to_classroom_teacher.teacherID 
    inner join SchoolTable 
        on SchoolTable.SchoolID 
WHERE
    (SchoolTable.mondayOn = 1)  
    AND school_to_classroom_teacher.schoolid = 1 
    AND([teacherClassroom Table].Available = 1)```

为凌乱的查询表示歉意,但不喜欢WHERE子句旁边的“ [SchoolTable.SchoolID”和查询的“ school_to_classroom_teacher”部分。

我尝试声明SchoolTable.SchoolID AS TEST,但这不起作用。

任何人有任何想法。

sql-server
1个回答
0
投票

所以您基本上想这样做(我删除了重复/多余的连接):

SELECT 
    COUNT(*) AS count,   
    Monday_Sandwich_Roll_Filling.FillingOption
FROM  
    #tempCustomer 
    INNER JOIN Monday_Sandwich_Roll_Filling 
        ON #tempCustomer.LunchMon=Monday_Sandwich_Roll_Filling.FillingOption 
    INNER JOIN school_to_classroom_teacher 
        ON #tempCustomer.teacherID= school_to_classroom_teacher.teacherID 
    INNER JOIN [teacherClassroom Table] 
        ON #tempCustomer.teacherID= [teacherClassroom Table].teacherID 
        and [teacherClassroom Table].teacherID=school_to_classroom_teacher.teacherID 
    inner join SchoolTable 
        on SchoolTable.SchoolID 
WHERE
    (SchoolTable.mondayOn = 1)  
    AND school_to_classroom_teacher.schoolid = 1 
    AND([teacherClassroom Table].Available = 1)

但是您在最后一次加入inner join SchoolTable on SchoolTable.SchoolID ........时也缺少加入条件。>

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