Forum Discussion

Anonymous's avatar
Anonymous
Not applicable
8 years ago
Solved

after union two table, data go to wrong column

when I union two same table, most data go to wrong column,  who know how to fix this error, thank you
Need Help
  • v-yulgu-msft's avatar
    v-yulgu-msft
    8 years ago

    Hi Anonymous,

     

    You could modify the DAX for calculated table as:

    Result Table =
UNION (
    SELECTCOLUMNS (
        Table1,
        "Column1", Table1[Column1],
        "Column2", Table1[Column2],
        "Column3", Table1[Column3]
    ),
    SELECTCOLUMNS (
        Table2,
        "Column1", Table2[Column1],
        "Column2", Table2[Column2],
        "Column3", Table2[Column3]
    )
)

    That way can keep the same order for columns when you union two tables.

     

    Regards,

    Yuliana Gu

Anonymous's avatar
Anonymous
Not applicable
8 years ago

Yes, true, two table column have different order like your example, how to fix this without code ?

How to let data to show  with right side column order? 

in the Edit Query Mode, my table with same column order, how they change column order by Data tab?

Thank you for your help

v-yulgu-msft's avatar
v-yulgu-msft
Microsoft Employee
8 years ago

Hi Anonymous,

 

You could modify the DAX for calculated table as:

Result Table =
UNION (
    SELECTCOLUMNS (
        Table1,
        "Column1", Table1[Column1],
        "Column2", Table1[Column2],
        "Column3", Table1[Column3]
    ),
    SELECTCOLUMNS (
        Table2,
        "Column1", Table2[Column1],
        "Column2", Table2[Column2],
        "Column3", Table2[Column3]
    )
)

That way can keep the same order for columns when you union two tables.

 

Regards,

Yuliana Gu

  • Anonymous's avatar
    Anonymous
    Not applicable
    5 years ago

    I have the same problem, and your solution would work just fine BUT I have ten tables each with ten columns. I would then need a cumbersome UNION SELECTCOLUMNS with 100 lines !!!

    Do you know of any other way to ensure columns remain in the same order, thus avoiding this workaround ?

  • Hisham's avatar
    Hisham
    Frequent Visitor
    7 years ago

    Great answere ! very usfull.

  • Narukkp's avatar
    Narukkp
    Helper V
    7 years ago

    Thank you so much. Your answer saving my lot of time...

  • dennissheehan's avatar
    dennissheehan
    Frequent Visitor
    7 years ago

    Excellent solution.

    My tables were generated in DAX so I could not use power query to join

    I tried union for a lot of tables and luckily the columns match up but sometimes they did not so this method helps me avoid being lucky in using union and rely on accurate coding instead.

     

    Most Grateful