Compare two tables in Word

Does anyone know how to compare two MS Word tables, look for matching entries in the first columns of each tables, and if a match is found take info from the second column of Table #2 and append it to the info in the first column of Table #1?

example:

Table 1
1
10
2

Table 2
3 a
10 b
12 c
2 d

the desired result would look like this:

Table 1
1
10, b
2, d

This is driving me nuts. :sick: Useful suggestions would be greatly appreciated.

5 years and no answer. I guess it was taken care of ! My suggestion would be to move those tables into Access and handle it through SQL

Most probably this wasn't answered because there was a lack of efforts shown by OP. We usually expect the users to show what they have tried and where are they stuck :)