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data modeling

Refactoring procedural to SQL – an example with MySQL Sakila

By Franck Pachot

What I want to show in this blog post is that, as in mathematics where you have to apply some algebra rules to transform an equation to an equivalent one, the database developer must translate the business specification to an equivalent that is optimized (in performance, reliability and readability) for the data model.

Data Modeling

Most readers of the blog are probably DBA's, or do DBA work along with development or other duties.
Though my title is DBA, Data Modeling is something I really like to do.
When first learning Oracle, I cut my teeth on data modeling, and used CASE 5.1 on unix to model a database system. True, CASE 5.0 used an Oracle Forms 3.x based interface, and the GUI modeling was unix only.
That was alright with me, as the Form interface allowed manual changes to be made quite quickly.
And the graphic modeling tool was fairly decent, even on a PC running Hummingbird X Server.