java - How to compare SQLite Column against a user string? -


I am creating a JavaFlapAppletate (with Java) in SQLite, but I'm trying to understand I want a username against the username already taken:

For example: I want to name the user name, but it is taken, against anyone I have already created How to compare the wanted user name.

I have a SQLite users.db and the field is USERNAME.

Thank you for any help.

Try to find the UNIQUE barrier.

Use the table user (id INTEGER, USERNAME text unique) when you create a table;

So if johuggs is already an entry in DB, trying to add it to the user values ​​(2, 'joeblogs') Used to be; You Error: The column USERNAME is not unique .


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