Access plan directives that force the optimizer to use the designated access method for data retrieval, either sequential scan or index scan.
访问计划指示，强制优化器使用指定的访问方法进行数据检索，要么是连续扫描，要么是索引扫描。
When a program accesses two pages of a file, VMM assumes that the program keeps trying to access the file in a sequential method.
当程序访问一个文件的两个页面时，VMM 假定该程序将采用顺序的方法不断地尝试访问该文件。
It is interesting that no one pointed out the similarity between FriendFeed's solution and the "ancient" technology of ISAM - Indexed Sequential Access Method.
有意思的是，并没有人指出FriendFeed的解决方案与古老的ISAM技术(Indexed Sequential Access Method，索引顺序存取法)之间的相似性。
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