问答题
磁道:圆心磁盘片上向边缘延伸的同心圆扇区:每个磁道中被分成若干等份的区域柱面:是磁盘上具有相同镭......
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计算机存储设备的种类?数据库系统是怎么利用各种设备的?
问答题计算机存储设备的种类?数据库系统是怎么利用各种设备的?
Is relational DBMS physical data model suitable for spa...
问答题Is relational DBMS physical data model suitable for spatial data?如果不适合,有哪两类解决途径?
What is a physical data model?Why learn physical data m...
问答题What is a physical data model?Why learn physical data model concepts?