【作者】 陈子聪； 汤庸； 刘海； 汤娜；

【Author】 Chen Zicong,Tang Yong,Liu Hai and Tang Na (Department of Computer Science,Sun Yat-sen University,Guangzhou 510275)

【机构】 中山大学计算机科学系；

【摘要】 时态数据库理论研究取得了丰富的成果,但是时态数据库实现技术尚处于发展阶段.在总结前人工作的基础上,讨论了时态数据库中间件平台的实现难点、选择ATSQL2的原因、整体架构、语法和语义处理算法等内容;采用符合当前现实条件的中间件形式,实现了一个基于ATSQL2的时态数据库平台.更多还原

【Abstract】 Within the past twenty years,researches on temporal database theory have acquired great achievements.However,implementation of temporal database stays in the developing phase.Based on the former accumulation,a representative temporal query language ATSQL2 is implemented on a temporal database platform called TDBEngine.Some difficult points,some questions,the architecture,the main algorithm to compile ATSQL2 and to carry out the temporal semantics transformation are discussed and the temporal referential integrity problem is introduced step by step in the main part of this paper.更多还原