When the era of abundant memory arrived, many DBAs increased their buffer pools until they were large enough to contain an entire database-thus creating the concept of a fully cached database.

当内存富足时代到来时，很多dba不断增加缓冲池，直到缓冲池大到足以容纳整个数据库，这便产生了全缓存数据库(fully cached database)的概念。

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