给出了一种合理的内存数据库存贮结构。基于实时事务具有一定的静态可预报性这一特征，提出了一种基于实时事务预分析处理的内外存数据交换策略，即利用预分析处理提取出关于事务对数据库的存取行为的知识，有预见地进行事务存取数据集的装载（包括数据交换）。这不仅能有效地确保事务在执行过程中没有Ｉ／Ｏ，而且能够最大限度地减小系统开销。 A reasonable memory database storage structure is given. Based on the fact that real-time transaction has certain static predictability, this paper proposes a strategy of exchanging data between internal and external storage based on real-time transaction pre-analysis process, that is, using pre-analysis to extract knowledge about the transaction access to database, Predictably load transactional data sets (including data exchange). This not only effectively ensures that transactions do not have I / O during execution, but also minimizes system overhead.