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SQLite is implemented in C because it provides optimal performance, universal interoperability across platforms and languages, minimal runtime dependencies, and stability. C allows SQLite to be called from any programming language (Java, Swift, Objective-C, etc.) while maintaining speed comparable to assembly language. Object-oriented languages like C++ and Java lack this portability. While modern safe languages like Rust are interesting, they didn't exist during SQLite's first decade, introduce branch testing challenges, and handle out-of-memory situations differently than SQLite requires. The SQLite team prioritizes old, boring, well-understood languages over newer alternatives, though Rust remains a distant possibility if certain preconditions are met.

Why Is SQLite Coded In C

2. Why Isn't SQLite Coded In An Object-Oriented Language?

3. Why Isn't SQLite Coded In A "Safe" Language?

<blockquote>
If you are a “rustacean” and feel that Rust already meets the preconditions listed above, and that SQLite should be recoded in Rust, then you are welcomed and encouraged to contact the SQLite developers privately and argue your case.
</blockquote>
Oh oh.

Make sense 🙂 It is most low code language after assembly after all, so if developer knows what he does, the efficiency is guaranteed 🌟

SQLite will also rarely, but randomly, corrupt the entire database.

It sounds like SQLite devs want someone to re-write it into Rust.