Is SQLite concurrent?

Question

Usually, SQLite allows at most one writer to proceed concurrently. The BEGIN CONCURRENT enhancement allows multiple writers to process write transactions simultanously if the database is in "wal" or "wal2" mode, although the system still serializes COMMIT commands.

Does SQLite support concurrency?

SQLite does support multiple concurrent connections, and therefore it can be used with a multi-threaded or multi-process application. The catch is that when SQLite opens a write transaction, it will lock all the tables.

How does SQLite handle concurrency?

SQLite has a lock table that helps locking the database as late as possible during a write operation to ensure maximum concurrency. The initial state is UNLOCKED, and in this state, the connection has not accessed the database yet.

Is SQLite multithreaded?

In serialized mode, SQLite can be safely used by multiple threads with no restriction.

How many concurrent users SQLite?

The default limit is 1,024.

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