Simon Willison’s Weblog

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11th March 2026

Tool SQLite Bytecode Explorer — Explore SQLite's Virtual Database Engine (VDBE) by analyzing the bytecode that SQLite generates when compiling SQL queries. This tool runs the `EXPLAIN` command on your SQL statements and annotates each instruction with detailed explanations of what it does, from cursor management and table scans to index lookups and aggregate functions.
Posted 11th March 2026 at 8:44 pm

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