Once I learned that database systemss are an application of relational calculus ...

		gcheong on March 13, 2008 \| parent \| context \| favorite \| on: Ask YC: What do I, a graduating CS student, need t... Once I learned that database systemss are an application of relational calculus is when they became interesting to me and it's amazing to me now that nobody ever mentioned this to me during all the years I worked in industry with relational databases.