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Dynamics 365 Community / Forums / Microsoft Dynamics AX (Archived) / join tables in X++
Microsoft Dynamics AX (Archived)

join tables in X++

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Posted on by Community Member

Hi , 

i have Table "A" and  i  need to join Table "B" and Table "C" to Table "A"

EX:

while select X from A where A.ID == '5'

Join B where A.BID==B.ID

join C where A.CID==C.ID

any help to make right join between three tables

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  • Suggested answer
    Mahmoud Hakim Profile Picture
    Mahmoud Hakim 17,887 on at

    you can check this link

    community.dynamics.com/.../how-joins-in-x-select-statement-are-translated-into-t-sql

  • Suggested answer
    Chaitanya Golla Profile Picture
    Chaitanya Golla 17,225 on at

    Hi,

    Code whatever you are using seems to be fine, are you looking for sql statement for the same.

    Alternatively you can use this:

    while select X from A  

    Join B where A.BID==B.ID

    join C where A.CID==C.ID

    && A.ID == '5'

    {

    // Your code.

    }

    SQL STATEMENT:

    select A.X

    inner join B on A.BID = B.BID

    inner join C on C.ID = A.CID

    where A.ID = 5

  • Suggested answer
    Vilmos Kintera Profile Picture
    Vilmos Kintera 46,149 on at

    AX does not do a right join. You can put your "right" table as top of the select statement, and do an outer join on the "left" table. This way it will return all rows as a SQL right join would for the right table, and only rows that match based on the relation from the left table.

    Results are identical to what you would expect with a right join.

    So we do make use of the left outer join T-SQL syntax here instead, see what Mahmoud has linked.

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