="/slides/index-en.html">Materials for Programming Courses</a></div><div><a href="databases-en.html">show presentation individually</a></div><section><h1>Databases</h1><ul><li><a href="/slides/databases-en.html#/0" target="content">Databases</a></li><li><a href="/slides/databases-en.html#/1" target="content">CRUD operations</a></li><li><a href="/slides/databases-en.html#/2" target="content">SQL vs MongoDB</a></li><li><a href="/slides/databases-en.html#/3" target="content">MongoDB data format</a></li><li><a 