B4J Question Best free Database for concurrent access

Pedro Caldeira

Active Member
Licensed User
Hello All,
I am developing a multi side aplication that need to read/write to a database at the same time.
With sqlite, I keep geting a database locked error, even with the pragma set to WAL.

Is there a DB engine that is both free and that allow concurrent connections ?



Well-Known Member
Licensed User
MYSQL and MariaDB that may be are not free for commercial use
PostgreSQL - i do not know the licencing
and my personal favorite SQL Server Express. i like express it is free for commercial use and very powerful database.
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