Making a list of unique ID's

nbendotron

New Member
Joined
Oct 11, 2012
Messages
8
Hi,

I am trying to create a formula that will identify unique ID's and pull them into a list in one cell that shows each unique ID separated by semi colons.

Data Table
ID
Name
1
John
1
John
1
Max
2
Haviar
3
Jess
3
Ron
3
Ben
4
Marco
4
Marco

<tbody>
</tbody>


Output Table
ID
Formula
1
???
2
3
4

<tbody>
</tbody>

The formula would return "John; Max" in B2, "Haviar" in B3, "Jess; Ron; Ben" in B4, and "Marco" in B5. I know this is difficult, but I appreciate anyone that tries, thanks
 

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jeffreybrown

Well-known Member
Joined
Jul 28, 2004
Messages
5,145
Here's a start, but if you remove duplicates first then this would make matters better.

Post #7

=foo($A$2:$A$10,E1)
 

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