SQLite

SQLite is a powerful and versatile C library that features an efficient, self-contained, and embeddable SQL database engine with zero configuration required. It boasts a comprehensive distribution that includes a standalone admin program known as "sqlite" which perfectly demonstrates the library's capabilities.

To create a new database, all you have to do is enter "sqlite3 test.db" at a shell or DOS prompt. A new database named "test.db" will be created, but you can always opt for a different name if you prefer. Once you've created your database, just enter SQL commands at the prompt to populate it with data.

Writing programs that use SQLite library is a breeze. You only need to execute simple commands, as demonstrated in the following TCL program. This program leverages the TCL interface to SQLite to execute SQL statements on the database defined by the first argument, which is passed to it as the second argument. You'll notice that the script opens a new database connection using the sqlite3 command, creates a new TCL command called "db", runs SQL commands against the database with the invocation of the db command, and finally closes the connection.

If you're looking for a fast, reliable, and hassle-free way to manage a database, SQLite comes highly recommended. It is the perfect tool for applications that don't require heavyweight database management systems. SQLite is an incredibly efficient piece of software that delivers top-notch performance and stability.