华南农业大学期末考试试卷(A).doc

文档介绍：华南农业大学期末考试试卷(A卷) 年第一学期考试科目:数据库原理与方法考试类型:(闭卷) 考试时间:120分钟学号姓名年级专业题号一二三四五六七总分得分评阅人_____________________________________________________________________________Instructionstocandidates:1. . . Handintheanswersheets,:(20marks). . Entity-. ACIDg. Deadlockh. Concurrencyschedulei. Timestampj. LogQuestion2:(21marks)Considerafactorymanagementdatabaseincludingthefollowingdataobjects:factory:Eachfactoryhasaname,alocation,:Eachworkshophasauniqueid,aworkshopdirector,:Eachdepositoryhasauniqueid,:essoryhasauniqueid,::Eachworkerhasauniqueid,aname,anage,,andemployee_lengthindicatesthelengthofworkinginaworkshop;Thesystemrequirementsare: