Fast, small and free

摘要

The chances are you will hear a lot about SQLite The reason is that it is being bundled with PHP 5.0, the forthcoming version of the popular server-side web-scripting engine. In some ways this is a surprise, as PHP is widely used with MySQL, another open-source database manager. You will still be able to use MySQL with PHP, but the client library will no longer be bundled and will have to be installed separately if it is not already present. One reason is licensing. MySQL is licensed under either the GPL (GNU General Public Licence) or a more restrictive licence for older versions. SQLite is in the public domain, so it is compatible with any licence, including the BSD/Apache licence used by PHP. That also means you can use SQLite for free in any context.