small sample of data, and the output desired.
Row 2 is written as a delta to a new table since acctgrp and channel changed.
Old:display yesterday's record
New:display today's record
Just so I have an audit of data changes..
78123,1,0,8-13-2021,8-10-2021,1002,rrb,800 -- Yesterday's data
78123,1,0,8-13-2021,8-10-2021,1004,xzb,800 -- Today's data