Because the table can change. Imagine showing the first 0..10 rows, deleting the 5th row, then showing 11..20 rows. And what happens if you insert rows while pa

Because the table can change. Imagine showing the first 0..10 rows, deleting the 5th row, then showing 11..20 rows. And what happens if you insert rows while paginating? Iterators aka cursors are the other option.