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MingyanZHU / DataBase_2019_Spring

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用于哈尔滨工业大学2019年春季数据库系统课程仓库

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DataBase_2019_Spring

用于哈尔滨工业大学2019年春季数据库系统课程仓库

写在考试后

期末考试在儿童节,但题量仿佛做理综。从作业题来看,题目应该是邹老师出的,题型大概是5道选择,8道大题,大题最少有3问,最多有8问,题量特别巨大,可以说稍有犹豫可能就做不完,比如我。

涉及的知识点,简答和选择题主要是考察了基础概念,比如什么是数据独立性类似这种问题;其余七道大题,第二道是SQL和关系代数,涉及了EXISTS的使用,以及关系代数中涉及了如何实现SQL中的GROUP BY;第三道是范式,涉及了判断范式类型,模式分解,证明;第四道是B+树索引;第五道记不清了,印象中不太难;第六道涉及了两阶段锁协议以及冲突可并行化;第七道涉及日志恢复;第八道是ER图设计或者是IDEF1X二选一,最后一题15分。

除了考试之外,不同老师实验要求不一样,高老师是4次实验,前两次简单,只交报告不交代码;后两次,验收加交代码,不需要报告。实验四代码量很大。总的来说,数据库课还是相当硬核的,TA极其认真负责,收获很大。

写于数据库考试后

如果战神教你的话,可以期待一波超高分.

文件目录

  • homework_x为课程上1-6次作业
  • lab_x为课程上1-4次实验
  • Paper_Summary为论文summary
  • Prof. Zhaonian Zou 为Prof. Zhaonian Zou老师课程作业及答案

Paper Summary

选择的论文为Siqiang Luo, Ben Kao, Guoliang Li, Jiafeng Hu, Reynold Cheng, and Yudian Zheng. 2018. TOAIN: a throughput optimizing adaptive index for answering dynamic kNN queries on road networks. Proc. VLDB Endow. 11, 5 (January 2018), 594-606.

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