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Power Platform Community / Forums / Power Apps / Add the column of anot...
Power Apps
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Add the column of another table.

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Posted on by Microsoft Employee

Hi, everyone

I got this problem that I would expect to be easy to solve but has been impossible for me to do for the past two days.
I want to add the column of another table to my main table such that:

 

{
	MainTable: [
		{
			"Names": "John Doe",
			"loginName":"john.doe",
		},
		{
			"Names": "Jane Doe",
			"loginName":"jane.doe",
		}
	]
}

{
	Hours: [
		{
			"WorkedHours": 120.00
		},
		{
			"WorkedHours": 115.50
		}
	]
}

 

becomes a single collection like this:

{
	MainTable: [
		{
			"Names": "John Doe",
			"loginName":"john.doe",
			"WorkedHours": 120.00
		},
		{
			"Names": "Jane Doe",
			"loginName":"jane.doe",
			"WorkedHours": 115.50
		}
	]
}


Collect will just add the rows. AddColumns seems incapable of taking data from other tables. Update writes over the whole row. I read that Patch could do it but that I needed an anchor column so I went to the trouble of creating a Index for those two tables with this guide http://powerappsguide.com/blog/post/generating-row-numbers.

But Patch doensn't add them. I honestly don't know what to do. 

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  • Verified answer
    mdevaney Profile Picture
    29,993 Moderator on at

    @Anonymous 

    I believe I can help you.  From your post I understand you have made a collection that includes an Index number for each record that looks like this.

     

    MainTable
    [{
     "IndexA": 1,
     "Names": "John Doe",
     "loginName":"john.doe",
    },
    {
     "IndexA": 2, 
    "Names": "Jane Doe", "loginName":"jane.doe", }] HoursTable [ {IndexB: 1, "WorkedHours": 120.00}, {IndexB: 2, "WorkedHours": 115.50} ]

     

    Here's how I would add the WorkedHours to your MainTable.  The ADDCOLUMNS is able to get values from other tables when a LOOKUP function is used in the 3rd argument.

     

    AddColumns(
     MainTable,
     "WorkedHours",
     LookUp(HoursTable,IndexA=IndexB,WorkedHours)
    ) 

     

    Let me know if you have any questions.

     

    ---
    Please click "Accept as Solution" if my response helped to solve your issue so that others may find it more quickly. If your thought the post was helpful please give it a "Thumbs Up."

  • Community Power Platform Member Profile Picture
    Microsoft Employee on at

    It worked! It worked! Smiley Surprised

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