The process of searching for , locating and reading out data 进行搜索、定位及读出数据的过程。
Instead , you can read directly out of the database and into an application 相反,可以直接从数据库读出数据并读入应用程序。
Listing 7 is a simple program to read and print out the contents of the database , sorted by the 清单7是一个简单的程序,它从数据库中读出数据的内容,并将其打印到屏幕上,在打印时对
Instead of using a thermometer to take our temperature , maybe we will have sensors implanted in our bodies that will be read by a personal health care monitor 我们也许会带有植入体内的传感器,可以由个人健康检测器据此读出数据,无需用体温计来测量我们的体温。
A certain amount of cpu resource is used to compress the data before it is stored , and then to decompress the data when it is read from the external storage device 在数据被存储之前压缩数据,以及在从外部存储设备读出数据时将数据解压,这都需要使用一定的cpu资源。