0 - 2 of 2 tags for sliding window

I am not positive this is a sliding window problem, but it is my best guess. I would like to show the current rows values and the next row, on the same output record, and then advance to the next recor --, repeat.

Can some please explain me Sliding Window and Single Window Merge Join?

This is what i have understood when reading the Statement and Transaction Processing Reference Manual...

1) This Join Strategy is used when Rowkey based Merge join is not possible.