一种基于Key/Value数据库的查询方法  

A Query Method Based on Key/Value Database

作　　者：谢亚妮 李响 黄兆坤 钟鸣 雷鸣涛 Xie Yani;Li Xiang;Huang Zhaokun;Zhong Ming;Lei Mingtao(The 28th Research Institute of China Electronics Technology Group Corporation,Nanjing 210007,China;Shanghai Corps of the Armed Police,Shanghai 200031,China)

机构地区：[1]中国电子科技集团公司第28研究所,南京210007 [2]武警上海总队,上海200031

出　　处：《信息化研究》2019年第3期58-63,共6页INFORMATIZATION RESEARCH

摘　　要：随着NoSQL数据库应用的广泛普及,针对分布式数据库的研究越来越深入。为了缓解大数据环境下用户对查询结果实时性和准确性不断提升的要求和目前大数据查询性能低之间的矛盾,文章基于最常用的分布式键值(Key/Value)数据库展开探讨,给出了一种基于Key/Value数据库的查询机制框架,按照分解→调度与执行→结果合并的查询流程展开讨论,最后针对查询优化提出了4点建议,为进一步提高查询效率提供了理论依据。With the widespread use of NoSQL database applications, research on distributed databases is getting deeper and deeper. In order to alleviate the contradiction between the requirements of users in the big data environment for the real-time and accuracy of query results and the current performance of big data query, the article is based on the most commonly used distributed key-value (Key/Value) database. A query mechanism framework based on Key/Value database is discussed according to the query process of decomposition→scheduling and execution→result combination. Finally, four suggestions are proposed for query optimization to provide theoretical basis for better query efficiency.

关 键 词：查询分解 查询调度与执行 查询结果合并 查询优化 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]