Comparisons in Relational Algebra

Let's say I want to select those tuples where the Year falls between 1990 and 1995. Is there a shorter way of expressing this?

sigma Year >= 1990 ^ Year <= 1995 (relation)

where sigma denotes the selection symbol.

Thanks.
Chee Sin Received on Wed May 31 2000 - 00:00:00 CEST