Re: [LIU Comp Sci] Need tutoring on Relational Calculus
From: <compdb_at_hotmail.com>
Date: Sat, 20 Dec 2014 18:45:06 -0800 (PST)
Message-ID: <aab6e269-2958-4745-92f9-a468ba5c26a0_at_googlegroups.com>
Date: Sat, 20 Dec 2014 18:45:06 -0800 (PST)
Message-ID: <aab6e269-2958-4745-92f9-a468ba5c26a0_at_googlegroups.com>
On Thursday, December 18, 2014 2:11:19 AM UTC-8, ruben safir wrote:
> I'm pouring over the HW assignment and the explanation and notes from
> the text is not adequate to explain relational calculus.
> This question is insane with SQL and Relational Algebra (where we can
> use a division) but solving it with relational calculus??
- What is the exact name and edition of the textbook?
- This link and its link might be of use: https://stackoverflow.com/a/24601100/3404097 Although it doesn't (yet) fully address converting from natural language directly into tuple calculus.
philip Received on Sun Dec 21 2014 - 03:45:06 CET