server uses client-server architecture to separate the workload into tasks that run on server computers and those that run on client computers. server manages databases and allocates the available server resources.and instances :http://www.csdn.net/develop/author/columnAuthor/hochihyi/Article/Oracle9iAdmin/Oracle9iAdmin03/Oracle9iAdmin03.htm
server就是服务器2 什么是一个数据库实例?
一个实例就是一个完整数据库系统
server manages databases and allocates the available server resources.and instances :http://www.csdn.net/develop/author/columnAuthor/hochihyi/Article/Oracle9iAdmin/Oracle9iAdmin03/Oracle9iAdmin03.htm