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by asutherland 3935 days ago
SQLite addressed writers blocking readers in 3.7.0 with its Write-Ahead Log. See https://www.sqlite.org/wal.html for more details, but point 2 at the top is "WAL provides more concurrency as readers do not block writers and a writer does not block readers. Reading and writing can proceed concurrently."

(Writes will still block writes of course.)