Database Design & Internals
Indexes, query planning, transactions and how databases are built.
Advanced
Once the basics are comfortable.
Architecture of SQLite
A short tour of how a real database is put together: the tokenizer, parser, code generator, virtual machine, B-tree and pager.
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Let's Build a Simple Database
Build a small SQLite-style database in C, one step at a time: a REPL, a B-tree on disk, and how rows are stored and found.
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How Query Engines Work
A free book that builds a small query engine step by step, so you see how SQL becomes plans and results.
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Readings in Database Systems (the Red Book)
A curated reading list with commentary on the big ideas in database systems, from relational design to modern data stores.
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