It provides an SQL-inspired set of classes to formulate queries, as well as a rich condition class hierarchy.
它提供了一种SQL- inspired系列的类，以组织查询，以及类的层级结构。
According to the properties of partition and merging, the hierarchy relation among condition classification, reduction and core is studied.
在对分类与归并性质充分研究的基础上，探讨了条件分类、约简与核的层次关系。
According to the properties of partition and merging, the hierarchy relation among condition classification, reduction and core is studied.
在对分类与归并性质充分研究的基础上，探讨了条件分类、约简与核的层次关系。
应用推荐