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Power Platform Community / Forums / Power Apps / Join two databases on ...
Power Apps
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Join two databases on on one gallery ?

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Posted on by Community Power Pla... Microsoft Employee

Hi,

 

I have two database and I want to display items in one gallery

 

For example :

Database1 

item 1 (column1, column2)

item 2 (column1, column2) 

item 3 (column1, column2)

 

Database2

item 4 (column3, column4)

item 5 (column3, column4) 

item 6 (column3, column4)

 

I want to display in my gallery

 

Item1 (column1, column2) 

Item2 (column1, column2) 

Item3 (column1, column2) 

Item4 (column3, column4)

Item5 (column3, column4)

Item6 (column3, column4)

 

Is it possible ?

 

Thanks !

Categories:
Building Power Apps
  • zmorek Profile Picture
    zmorek 3,272 on at

    No, one datasource at a given time per gallery, however you can do some Switch() statements to say "use X data source for this condition, or Y data source for that condition"... However that requires both datasources to have the same schema (i.e. columns).

     

    You might however be able to simply look up data from your second datasource to your gallery containing the first, assuming there's some sort of key column that you can use. You might also just create a collection containing the data from both datasources that you need, then use the collection on the gallery. What are you trying to achieve exactly?

  • Verified answer
    Mike2500 Profile Picture
    Mike2500 1,247 Super User 2024 Season 1 on at

    Yes, it's possible. You have two things going on: you're trying to "union" two datasets. (That's the term used in SQL for this sort of operation). An additional challenge is that your two datasets have different field names. 

     

    Meneghino provided the solution to unioning here.

     

    Ungroup(Table({MyTables: TableA},{MyTables: TableB}), "MyTables")

    The above function could be used in the items property of a gallery, and will union together the rows from tablea and tableb. The issue is that both tables need to have the same column names for this to work. 

     

    So here's a variation:

    Ungroup(Table({MyTables: varMyTable1},{MyTables: RenameColumns(varMyTable2,"Color2","Color")}), "MyTables")

    In the above example, I'm using variables that have tables, but you could use just tables. My table1 has columns of ID and Color. Table 2 has ID and Color2. The ungroup is unioning varMyTable1 to the result of the rename operation, which changes the name of Color2 to Color. 

     

     

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