Parameters comparing for storage devices/ media is implemented on load/ unload time, read/ write time, access time, data transfer rate, price and compatibility. 存储设备/介质基本参数指标比较包括平均介质装/卸载时间、平均读写率、平均访问时间、平均数据传输率、以及驱动器/存储介质价格和系统兼容性。
We can realize the operation of basic geographic information database by current data accessing engine, including the connect and disconnect the database, read and write data or big data document, supporting the multiuser access at one time. 3. 通过所研制的通用数据库访问引擎,实现了对基础地理信息数据库的操作,包括连接、断开数据库,对数据库数据及大数据文件的读写,并支持多用户同时进行并发访问等。