Roberto Vitillo
I am software engineer at Mozilla involved into investigating and fixing performance and power bottlenecks of Firefox by exploiting the data collected from our Telemetry system. I work mainly with C++,...
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Concept Map: SQL
Once the main concept behind SQL is grasped, that of relational algebra, picking up a tutorial and learning to write simple queries should be rather trivial. Depending on the audience, with only 5...
View ArticleAssessment Exercise: SQL
1. Let’s assume we have a table with a single attribute whose entries are natural numbers. Say we apply to it an operator called “last” that returns the last record of the table. Is the returned...
View ArticleMotivation Story
On the top of my mind I can’t really remember any particular important demotivational experience. That may sound strange but depending on the kind of environment that one grew up experiences may vary....
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