I have 60,000 rows from an ODBC strip that has UPC codes in column A and SKU
numbers in column B (sorted by column A). Each row is a location record. I
am looking for UPC codes that 'point' to different SKU numbers and would like
to delete the rows that are correct. So .... I want to look in column A -
and for as many rows as this value is the same (may be 1 to 20 rows) .... I
want to look at column B - and if all column B entries for the same rows are
also equal I want to delete that block of rows. If there are different SKU
values in column B I want to keep that entire block of rows. Then on to the
next UPC .... etc., etc.

I know the logic I'm looking for ... just don't know how to explain it to my
machine!