By letting the main operating part of the database reside constantly in the main memory, and utilizing the quickaccess speed, the system performance is greatly enhanced.
它通过将数据库的“工作版本”常驻内存，利用内存快速的存取速度，使系统性能获得很大的改善。
2
For example, some drivers use a memory handle for the identifier to gain quickaccess to memory containing information about the given instance.