Build Your Own Database in Go From Scratch
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Build Your Own Database in Go From Scratch

From B+tree to SQL in 3000 lines

About the Book

Learn databases from the bottom up by coding your own, in small steps, and with simple Go code (language agnostic).

  • Atomicity & durability. A DB is more than files!
  • Persist data with fsync.
  • Crash recovery.
  • KV store based on B-tree.
  • Disk-based data structures.
  • Space management with a free list.
  • Relational DB on top of KV.
  • Learn how tables and indexes are related to B-trees.
  • SQL-like query language; parser & interpreter.
  • Concurrent transactions with copy-on-write data structures.


You may also like my other book: Build Your Own Redis.

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    • Computers and Programming
    • Databases
    • Go
    • Software Architecture
    • Computer Science
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About the Author

Educational software development materials.

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Build Your Own Redis

Build Your Own Database

From Source Code To Machine Code

Build Your Own Web Server


The Book
  • PDF

  • EPUB

  • English

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The Book + Golang code

The book and Golang source code corresponding to each of the chapters in the book.


  • extras
    Code samples in Golang
  • PDF

  • EPUB

  • English

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Bundles that include this book

Bought separately
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Table of Contents

Part I: Simple KV Store

    From Files To Databases
    Indexing Data Structures
    B-Tree & Crash Recovery
    B+Tree Node and Insertion
    B+Tree Deletion and Testing
    Append-Only KV Store
    Free List: Recyle & Reuse

Part II: Mini Relational DB

    Tables on KV
    Range Queries
    Secondary Indexes
    Atomic Transactions
    Concurrency Control
    SQL Parser
    Query Language

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