A record is a collection of related field. 记录是相关域的集合.
A file is a collection of related records that is usually stored on an auxiliary storage device. 文件是相关记录的集合,通常储存在辅助存储设备上.
A record is a collection of related field. 记录是相关域的集合.
A file is a collection of related records that is usually stored on an auxiliary storage device. 文件是相关记录的集合,通常储存在辅助存储设备上.