Most businesses are built on information management systems whose main underlying infrastructures are based on data stored in one or more relational databases.
2
信息管理系统就是我们常说的MIS，它是一个计算机软硬件资源以及数据库的人-机系统。
Information management system that we often say that the MIS it is a computer software and hardware resources and database people - systems.
3
通过分析众多信息管理系统中数据库执行的操作，我们发现在各种数据库操作中查询操作占据了很大的比重。
By analyzing the database operations of the numerous Information Management System, we found the query operation occupy a lot of proportion in a variety of database operations.
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