All editions of CardExchange® Visitor come with an internal SQLite database. If you are using each edition as a standalone application and not using multiple clients, then the standard SQLite database will do the job without any problems. If that is the case, you can ignore this section of the installation manual.
Starting from the CardExchange® Visitor Business edition it is also possible to connect to MySQL and SQL Server databases, if you are setting up a multiple client environment on your network with for example, different buildings, lobbies, etc., we strongly advice to use this server based database support.
Although technically SQLite could handle multiple sessions, the database gets locked on the moment a client writes to the database and it can happen that, when another client attempts to write to this database at the same time, data problems or errors can occur.
So if you are using a multiple client environment we strongly advice to use either a MySQL or SQL Server database.
