convert column values to comma delimited single row

I have a report like below

A B C

1 2 X
1 2 Y
1 2 Z

i need to display the result as shown below

A B C
1 2 X,Y,Z

i am using XI R2. Please suggest me a soulution


justingkm (BOB member since 2011-03-11)

check this:
https://bobj-board.org/t/170527


Marfi :poland: (BOB member since 2006-12-18)