Read Buffer Memory的意思|示意

For example, to get input, we may need to specify the file or device to use as the source, and the address and length of the memory buffer into which the input should be read.

例如，为了获取输入，我们可能需要指定文件或设备作为信息来源，并且要把地址和内存缓冲区的长度放到输入读取的位置。

Buffer Cache - Memory allocated for storing data blocks read from physical data files.

缓冲区缓存——为存储从物理数据文件读取的数据块而分配的内存。

In other words, it may be removed from the buffer and written back to the disk before subsequent data pages can be read into the memory and processed.

换言之，在后续数据页被读入内存并被处理之前，它们可能已经从缓冲区中删除，并写回磁盘。

Controller 218 typically contains buffer memory for the user data being written to, or read from, the memory array.

控制器218通常含有缓冲存储器以用于将用户数据写入到存储器阵列或从存储器阵列读取用户数据。

A buffer pool is an area of storage in memory into which database pages (containing table rows or index entries) are temporarily read and changed.

缓冲池是内存中的一块存储区域，用于临时读入和更改数据库页(包含表行或索引项)。

You'd have to write a handler to build what amounts to an in-memory buffer to keep up with what's already been read; then you'd need some code to read ahead as well.

所以，必须要编写一个相当于内存缓冲器的处理程序来记录已读的内容，也同时需要编写一些代码进行提前读。