基于GUID的多尺度核心要素数据级联更新方法研究

福建省核心要素数据包含4个比例尺,每年需要进行2次更新。在多尺度核心要素数据更新时,容易出现数据不一致性的问题,这些问题在数据质量检查时很难被发现,特别是属性的不一致性问题。通过引入GUID型字段可以将更新前后的核心要素数据关联起来,并开发基于GUID字段的变化要素提取程序,用于变化要素的快速提取,从而实现多尺度核心要素数据的级联更新。

The Study of Multi-Scale Core Elements Data Cascade Updating Method Based on GUID

The core elements data of Fujian Province contains four scale data and must be updated twice a year .When multi-scale core elements data is updated , it probably cause data inconsistency problems which were difficult to be found in data quality checks , especially attributes inconsistency problems .In this study, GUID data type was used to construct relationship between original data and update data , and change features extracting program which will be used to extract change features was developed , thereby the data of other scales can be cascade updated .