Question

Can SQLite manage concurrent access? I use SQLite with C/C++? If it doesn’t support that. Is there any suggestion to support concurrent access in SQLite?

Answer 1

Yes it does as the documentation states here:

SQLite Version 3.0.0 introduced a new locking and journaling mechanism
designed to improve concurrency over SQLite version 2 and to reduce
the writer starvation problem. The new mechanism also allows atomic
commits of transactions involving multiple database files.

and:

SQLite uses POSIX advisory locks to implement locking on Unix. On
Windows it uses the LockFile(), LockFileEx(), and UnlockFile() system
calls.

And here:

SQLite uses filesystem locks to make sure that only one process and
database connection is trying to modify the database at a time. The
filesystem locking mechanism is implemented in the VFS layer and is
different for every operating system. SQLite depends on this
implementation being correct. If something goes wrong and two or more
processes are able to write the same database file at the same time,
severe damage can result.