基于幂集的查询模型及其查询能力

基金项目: 国家自然科学基金资助项目,编号69773048。

详细信息

Powerset-based Query Model and Its Query Capacity

摘要: 分析了一般数据库的查询模型,提出基于集合构造的幂集查询模型,基于数据模型的特点定义了能评价查询模型强弱的查询能力,据此讨论了幂集查询模型的能力及其特点。
- 数据模型 /
- 查询模型 /
- 查询能力
Abstract: An elementary query model is a key factor to implement spatial information query in GIS. A common query model in database is outlined in this paper and a powerset query mode is put forward based on construction of set. In regard to data models, a query capacity is defined for assessment of query models. The powerset-based query model is examined according to the capacity.
- data model /
- query model /
- query capacity