【摘要】 本文研究分布式数据库查询优化最棘手的问题是如何分离具有千丝万缕联系的局部处理与网上传输.[5]作了一个突破性的尝试,本文以其为基础,作了进一步的研究使其算法实用化.更多还原

【Abstract】 In studying distributed database query optimization, the knotty problem is how to separate local processes and net transmission which have a thousand and one links. Based on reference[5] which makes a breakthrough attempt, this paper makes a further research of the problem, making the algorithm practical.更多还原