Unit 21 · Module 6 · Databases
B-tree vs LSM — the bet every database makes
Update in place, or append and clean up later. There is no third option.
Unit 21 of the free 49-unit computer-science course, in databases. 1 topic to watch or read and a short self-check.
Watch or read
One topic makes up this unit. Take each one whichever way suits you, then answer the questions below.
60 years of data storage
We rebuilt the way companies store data four times. Each generation fixed one precise failure of the last — and once you know what broke, the buzzwords collapse into a single argument.
Self-check — 3 questions
Answer alone, at 2am, with no interviewer in the room.