简介：向DB 2数据库添加索引通常是改善查询性能的最好方法，但添加索引也是有代价的。
Summary: Adding an index to a DB2 database is often the best way to improve query performance, but the addition can have trade-offs.
简介：数据源企业中的数据集成是任何数据库市场的最普通的需求。
Summary: data integration in an enterprise of data sources is one of the most common requirements of any database shop.
本文简介了宁夏野生经济植物数据库信息系统的建库目标，系统结构和功能。
The goal, system structure and function of the wild economic plants database information system of Ningxia are briefly introduced in this paper.
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