Visual Foxpro的数据一致性设计

A Design of Visual Foxpro's Data Consistency

“一致性”这个术语描述了系统中存储的数据资源的正确状态,VFP从数据有效性、触发器和引用 完整性三个方面来维持数据的一致性状态。以一个销售系统为例,阐述在VFP中数据一致性的设计方法。

The term 'consistency' describes the correct state of data resource stored in the system. VFP maintains the data consistency from data validity, flip-flop and quotation integration. Taking a marketing system as an example, the paper explains the design of the data consistency in VFP.