Make SQLite connection fail if database is missing? (deleted/moved)

Question

I have the following method inside class DBConnection. I call the method like this: SQLiteConnection conn = DBConnection.OpenDB(); when I want to o

Answer 1

At least in System.Data.SQLite, you can add "FailIfMissing=True" to your connection string. SQLiteConnection.Open() will throw a SQLiteException if the database file does not exist.

string ConnectString = "Data Source=file.sdb; FailIfMissing=True";
DbConnection db = new SQLiteConnection(ConnectString);
db.Open(); // Fails if file.sdb does not exist

See SQLite Connection String Samples for another example, look for "Disable create database behaviour".