In last episode, we talked about 2-3 trees, where the nodes of every tree contain data in the form of keys, as well as potential child nodes, and can contain more than one key. This takes us to b-trees, which is a generalized version of the 2-3 tree, and are super efficient for storing data in an indexed database, like MySQL. Based on Vaidehi Joshi's blog post, "Busying Oneself With B-Trees".
S7:E5 - "To b-tree or not to b-tree" | Base.cs Podcast - Listen or read transcript on Metacast