Sqlite Online Backup Using System.Data.Sqlite
The online backup API was added to System.Data.Sqlite in version 1.0.80.0 - April 1, 2012. You can create a database backup while there are other external connections like so
using(var source = new SQLiteConnection("Data Source=ActiveDb.db; Version=3;"))using(var destination = new SQLiteConnection("Data Source=BackupDb.db; Version=3;")){ source.Open(); destination.Open(); source.BackupDatabase(destination, "main", "main", -1, null, 0);}Also, BackupDb.db will be created if it doesn't already exist.