Matching values from 2 datatable ( same structure ) without loop row

Hi Everyone.

I have 2 datatable same structure as attached file… I want to matching “Scope” Col between 2 datatable without loop rows if the “Name” Col is same value

Are LinQ or Join Datatable are possible do this ? And how to do this ?

Thanks in advance!

Input Table:

Out Table

Expected result

Book1.xlsx (10.3 KB)

Hi @Mr.H

Apart from using join I think this query can help in

dt1.AsEnumerable().ToList().ForEach(Sub(row) row(“Scope”)= If(dt2.AsEnumerable().Where(Function(r) r(“Name”).ToString.Equals(row(“Name”).ToString)).Count<>0,dt2.AsEnumerable().Where(Function(r) r(“Name”).ToString.Equals(row(“Name”).ToString))(0)(“Scope”).ToString, Nothing))

Use this code in invoke code with dt1 as in/out argument and dt2 as in argument here

I am assuming that dt1 is Input Table

dt2 is Output Table

Hope it helps

Mark it as solution if it solves ur query


Nived N :robot:

Happy Automation :relaxed::relaxed::relaxed:


Actually I feel join isnnot needed here as ur need to update the value of scope column in input table from output table by look-up

Hi Bro.

If i want to add more condition to check same value at the “Position” Column as below picture, how to customize more in your code?

And i think it still must loop rows in your code… if two datatables have some thousand rows, it will take time to match same row between 2 datatables.

Is there any other way to match them without loop Bro ?


Hi @Mr.H

Well my code do the process of lookup and updating data too…

And then u can write dt1 directly into the excel itslef

Also can u explain more about how u need to consider position column too?

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Thanks you Bro for your solution… i known how to customize to apply into my sample.

I will find more another way to compare the performance while matching 2 datatables can up to some thousand rows.

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Hi @Mr.H

Is this method is taking more time than required?

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Hi Bro.

I think it fine :slight_smile:

Thanks you very much!

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