Abstract: Adding temporal data type to system, the temporal data can be managed conveniently and effectively in relational database system. This paper presents a temporal index method based on temporal data type, named MAP21*3B+-Tree, and accomplishes various temporal queries by creating temporal index for every domains of temporal data.

Key words: Temporal data type, Temporal index, B+-Tree

摘要： 在系统中引入时态数据类型，使得在关系数据库系统中能对时态数据信息进行方便有效的管理。该文给出了一个基于时态数据类型的时态索引方法：MAP21*3B+-Tree方法，通过对时态数据的各个域分别建立索引，实现双时态数据库的各种时态查询。

关键词: 时态数据类型, 时态索引, B+-Tree

CLC Number: 

• TP311