Assign Random Number For Each Distinct Item

[garrettmindrup]

Hello, 

I have a table with document numbers and $ amounts. Some document numbers have multiple amounts, so those numbers repeat within the table. 
I'd like to assign random numbers to each distinct document number. Is there a way to do a FOREACH() type formula that will assign the RAND() function to each distinct value in my document number column? 

Example Output:

Rand()	Doc Number	$ Amount
.992	1	100
.992	1	89
.876	2	2000
.653	3	41
.653	3	200

[garrettmindrup · Accepted solution]

I think my solution is to pull in the document numbers into a separate table, remove duplicates, assign random numbers, and then create a relationship between the distinct table and the table with duplicates. Still open to other ideas if someone has a better solution. 

[garrettmindrup]

Bump