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Power Platform Community / Forums / Power Apps / How do you join 3 tables
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How do you join 3 tables

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Posted on by lscoffield

How do you join 3 tables? here is the simple SQL

 

    SELECT studentClassMap.StudentId, studentClassMap.ClassId, [user].*, class.*

        FROM StudentClassMap as studentClassMap

        LEFT JOIN Class as class on class.ClassId = studentClassMap.ClassId
        Left JOIN [User] as [user] on [user].UserId = studentClassMap.StudentId

Categories:
Building Power Apps
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  • Verified answer
    RandyHayes Profile Picture
    RandyHayes 76,299 Super User 2024 Season 1 on at

    @lscoffield 

    I assume you mean how to do this in PowerApps...

    If so then consider the following formula (in this case putting into a collection):

     

    ClearCollect(colStudentClassMap, 
 AddColumns(
 StudentClassMap,
 "Class", Filter(Class, ClassId=StudentClassMap[@ClassId]),
 "User", Filter(User, UserId=StudentId)
 )
)

    I hope that is what you are looking for.

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