Start here — Understand the landscape. What kinds of databases exist and what is each designed for?
Types de DatabasesGo deeper — How does a database engine actually process your SQL? Essential for understanding performance and query optimization.
This is how SQL Queries are executedGo broader — 12 database types with concrete use cases to help you pick the right one.
12 Must Know Database TypesApplied — Arrays, linked lists, stacks, queues, hash tables, trees — how each works and when to use them in data platform decisions.
Understanding Essential Data StructuresFoundation — What a data structure is and why choosing the right one can be the difference between milliseconds and hours.
What exactly is a data structure?