The Composite OLAP-Object Data Model

[摘要] In this paper, we define an OLAP-Object model that combines the main characteristics of OLAP and Object data models in order to achieve their functionalities in a common framework. We classify three different object classes: primitive, regular and composite. Then, we define a query language which uses the path concept in order to facilitate data navigation and data manipulation. The main feature of the proposed language is an anchor. It allows us to fix dynamically an object class (primitive, regular or composite) along the paths over the OLAP-Object data model for expressing queries. The queries can be formulated on objects, composite objects and combination of both. The power of the proposed query language is investigated through multiple query examples. The semantic of different clauses and syntax of the proposed language are investigated.

[发布日期] 2005-12-07 [发布机构] Lawrence Berkeley National Laboratory

[关键词] Statistical Databases Olap Multi-Dimensional Databases;Data Processing Statistical Databases Olap Multi-Dimensional Databases;Information Retrieval;O Codes;99 General And Miscellaneous//Mathematics, Computing, And Information Science