Warehouse data modeling vs. operational database modeling.
仓库数据的建模与操作数据库的建模。
In an operational database, the user does not directly interact with the database.
在数据库操作中，用户不直接与数据库进行交互。
The major task of on-line operational database systems is to perform on-line transaction and query processing.
联机操作数据库系统的主要任务是执行联机事务和查询处理。
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。
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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