SQLite is a superb database that doesn't need a server since it's actually on the file system with all tables stored in a file. That means you can have your database even on a memory stick, or your hard-disk, or a server.
In Firefox there is a free Addon you can download, though it's already installed in our labs at the university, it's called SQLite Manager; install it as an addon in Firefox if you don't have it.
This is for Firefox only, from the Tools menu, choose SQLite Manager then, to use it, do the following:
Database=>Connect Database. Using either method choose your sqlite database file. By default it will have an sqlite file extension.Notice, under the Tables section, you will see all the tables in your database.
Browse & Search button at the top of the window is clicked.Execute SQL button, then enter any valid SQL command where it says "Enter SQL", then click the Run SQL button.