Does SQLite support concurrency?

Question

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. 14 июл. 2014 г.

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.

Does SQLite support multiple connections?

Yes SQLite can support multiple users at once. It does however lock the whole database when writing, so if you have lots of concurrent writes it is not the database you want (usually the time the database is locked is a few milliseconds - so for most uses this does not matter).

Is SQLite multithreaded?

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

How many concurrent connections can SQLite handle?

The default limit is 1,024.

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