摘要
基于数据依赖基本概念给出了保持多值依赖MVD集的定义，提出了构造联接树的算法，生成MVD集与保持MVD集的检验算法，同时对算法给出了证明。
the definition of preserve multivalued dependency(MVD),alg orithm of preserve multivalued dependency set,algorithm of generated m ultivalued dependency set and algorithm of join tree was presented and provied base on data dependency.
出处
《燕山大学学报》
CAS
2001年第3期279-282,共4页
Journal of Yanshan University
关键词
函数依赖
多值依赖
保持多值依赖
联接树
MVD
function dependency(FD),multivalued dependency(MVD),pres erve multivalued dependency(preserve MVD),join tree.
