Building SQLite from Scratch: 740 Lines of C++23 to Understand Every Byte of a .db File
The article discusses the inner workings of SQLite, an embedded relational database engine. It explains how SQLite operates without a server process, using a single file to store all data. The author introduces TinySqlite, a project that dissects the binary structure of a .db file using 740 lines of C++23 code.
- ▪SQLite is an embedded relational database engine that operates without a server process.
- ▪TinySqlite analyzes the binary structure of a .db file, revealing how data is stored and accessed.
- ▪SQLite is widely used in various applications, including mobile devices and web browsers.
DEV.to (Top) files mainly under programming. We currently carry 4,924 of its stories.
Story provenance
Source · retrieval · rights · ranking — open for full record
inspect →
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/tyler_tan_13b1f742020d35a/building-sqlite-from-scratch-740-lines-of-c23-to-understand-every-byte-of-a-db-file-hl2 |
| Publication time | Fri, 22 May 2026 11:56:56 +0000 |
| Retrieval time | 2026-05-22T12:02:01.659Z |
| Last seen | 2026-05-22T12:02:01.659Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | r4ES09DWL8Im |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3938418) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Tyler Tan Posted on May 22 Building SQLite from Scratch: 740 Lines of C++23 to Understand Every Byte of a .db File #computerscience #cpp #database #systems You fire up a MySQL client, connect to port 3306, send off your SQL, and the server parses, optimizes, hits an index, fetches rows, and packs the result back to you. You can picture that entire pipeline. SQLite has none of that. No server process, no port, no wire protocol. Just a single file: my.db.
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
Discussion
0 commentsMore from DEV.to (Top)
