Abstract: The paper presented the temporal data index technology based on linear order partition. Firstly, the paper discussed the conception of linear order partition as well as its constructing algorithm on a given period set. Secondly, it put forward the TQOindex which is capable of indexing temporal database in external storages. Besides, the simulation resups of the index show its practicability and effectiveness. The basic property of TQOindex is that it is built on the math frame of order relationship and its data operation can be completed once a set in temporal query.

Key words: Temporal database, Linear order partition, Data index based on external storage