Order Dependencies in Database Systems

数据库系统中的顺序依赖性

• 批准号: 203218-2013
• 负责人: Gryz, Jaroslaw
• 金额: $ 2.62万
• 依托单位: York University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=593792
• 关键词: Order; Dependencies; Database; Systems

Relational database systems became the predominant technology for storing, handling, and querying data only after great improvement in the efficiency of query evaluation in such systems. The key factor in this improvement was the introduction and development of a number of query optimization techniques. Despite enormous progress in query processing technology, there is still great need for new optimization techniques. Minimizing query response time has become particularly important in electronic commerce where the users expect almost instantaneous answers to their queries.

关系数据库系统在极大地提高了查询计算的效率之后，才成为存储、处理和查询数据的主要技术。这种改进的关键因素是引入和开发了许多查询优化技术。尽管查询处理技术取得了巨大的进步，但仍然非常需要新的优化技术。最小化查询响应时间在电子商务中已经变得特别重要，其中用户期望几乎即时的回答他们的查询。