数据库是企业中最重要的软件，而企业中最重要的软件是数据库。数据库是所有应用程序的基础。数据库是应用程序的心脏，而应用程序是业务的心脏。性能的关键是将热数据保存在内存中。
The database is the most important piece of software in the enterprise, and the most important piece of software in the enterprise is the database. The database is the foundation of all applications. The database is the heart of the application, and the application is the heart of the business. The key to performance is to keep the hot data in memory.
