The experiment demonstrates that the new index structure has better performance of searching and needs less main memory than the hashing table.

实验证明，此索引结构比传统的散列表结构有更优的查找性能和更高的内存利用率。

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An operational database is designed and tuned from known tasks and workloads, such as indexing and hashing using primary keys, searching for particular records, and optimizing "canned" queries.

操作数据库是为已知的任务和负载设计的，如使用主关键字索引和散列，检索特定的记录，和优化“罐装的”查询。

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