A core extension since PHP 3, the Unified ODBC extension is the ideological ancestor of a fast, light database access abstraction for PHP.
从 PHP 3 开始出现的核心扩展 —— Unified ODBC 扩展 —— 是 PHP 快速、轻型数据库访问抽象的理论先驱。
Amazon's SimpleDB is a fast and simple cloud-based database which provides indexing, storage, and access.
Amazon的SimpleDB是一个基于云的快速而简单的数据库，它可以提供索引、存储及访问。
The database will be slower than the memory access, so two servers will not be twice as fast as one.
数据库访问比内存访问慢，所以两台服务器的处理速度达不到一台服务器的两倍。
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