【单选题】Data are transferred between main memory and the disk surface by ______ at a time.
【单选题】数据字典是对数据定义信息的集合,它所定义的对象都包含于
【单选题】We know a computer is a machine that processes data(stored in main memory)into information, under control of a stored program. We also know that, internally, a computer is a binary machine; thus the d...
【单选题】In DRDBMSs, each data access has to go to the _____ to make sure data is still in main memory.
【单选题】The processor manipulates data stored in main memory under the control of a(71)stored in main memory.
【判断题】If data are needed at a later time, it must be stored in main memory.
【单选题】_____ is a database management system that primarily relies on main memory for computer data storage.
A.
A disk resident database management system
C.
A main memory database system