My January presentation for the San Francisco Microsoft Data Platform User Group:
Wednesday, January 13, 2016 6:30 PM
Microsoft Reactor, 680 Folsom Street , San
Francisco, CA (map)
In the early 70's E. F. Codd provided a very precise, formal
definition of a table in its normal form. Any table not normalized was in
violation of the RDM and not considered a R-table. But you are unlikely to have
encountered that definition. Instead you probably heard about "repeating
groups", "simple domains" and "atomic values", neither
of which are formal relational concepts. C. J. Date provided
a 1NF definition different than Codd's. And you probably think that the same
design principle underlies all normal forms, but 1NF is somewhat distinct.
This presentation introduces order and makes sense of all this,
including the practical implications for SQL database practice. It is first in
THE REAL DATA SCIENCE series (that includes papers and seminars) expounding the
Codd-McGoveran relational model, distinct from Date-Darwen's.You will learn:
• Normalization vs. further normalization
• Repeating Groups
• Simple domains and atomic values
• SQL and 1NF
