by Kordian | Oct 8, 2025 | SQL Course
Introduction: From Simple Pairs to a Complex Web of Connections Welcome back. In previous lessons, we learned how to look inside a single “binder” (SELECT … FROM), filter its contents (WHERE), and combine information from two different binders (INNER...
by Kordian | Sep 30, 2025 | SQL Course
Introduction: From a simple question to a precise investigation Welcome to the second part of our journey into the world of SQL. In the previous lesson, we took the most important first step: we learned how to ask a database to show us the contents of its...
by Kordian | Sep 23, 2025 | SQL Course
Introduction: Forget “coding,” learn to ask precise questions Do the words “database” or “programming” make you feel a little anxious? Do you picture complex screens full of incomprehensible characters? That’s natural. With...
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