Walter Shields

SQL Teacher / Coach, SQL Training Wheels

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My personal road to mastery of SQL began in the late nineties. At the time, opportunities to learn SQL in a formal, institutional setting were quite scarce, as the phenomenon of big data had not come to maturity. In lieu of any real scholastic alternative, I matriculated into the school of hard knocks—I learned SQL by trial and error, mostly error. It took 18 years, a few degrees, and more than a few lucky breaks before I succeeded in acquiring an authoritative, professional-level command over the language and applications of SQL. 

Here is the good news: it does not have to be as difficult for you as it was for me.

Regular Session (60 minutes):

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