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Held: Wednesday, April 25, 2007
Summary: Today we begin our exploration of declarative database languages by considering one of the first papers on relational databases.
What is a database?
How do we implement them (without a DBMS)?
What do we know about the state of computing (and databases) at the time this was written?
What are the primary contributions of this paper? Here are some.
Why do we care about separating access from representation?
Up to you to answer this question.
Codd treats relations in a variety of ways in the paper.
A B 0 1 0 2 1 1 3 1
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