Tag: SQL

SQL joins explained as Venn diagrams

A handy illustration explaining how left and right joins work in SQL, presented as Venn diagrams. For some examples with actual data, check also this article by Jeff…

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Free eBook: Introduction to SQL

// If you are new to programming and looking for a way to start learning about databases, here is a free #eBook on #SQL by Rahul BatraContents1) An…

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Hi, I am Markos Giannopoulos. I have been developing for the web for over two decades — designing, coding, and photographing along the way. Find me on Facebook, Twitter or via the RSS feed.