頁籤選單縮合
題 名 | Coloured Petri Net-Based Modeling for Distributed Relational Detabase Queries |
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作 者 | Chen, Pe-te; Chen, Yu-tsai; Yang, Chen-chau; | 書刊名 | 中國工程學刊 |
卷 期 | 29:6 民95.10 |
頁 次 | 頁1029-1039 |
分類號 | 448.6 |
關鍵詞 | Distributed database; Modeling; Coloured Petri nets; Query processing; |
語 文 | 英文(English) |
英文摘要 | In this paper, a new application of colour timed Petri net (CTPN) based methodology for distributed relational database queries modeling and corresponding simulation is addressed. This work, first based on parsed query definitions, converts logical query plans into designed CTPN models. Later, the improved cost-based functions are then established and appended to CTPN with a general purpose CPN simulator-Design/CPN to observe the thresholds of query operations. The propose CTPN can be used in the design phase as an experimental prototype to automatically simulate distributed database query processing which, in turn, may considerably reduce the load of developing the actual query processing software in the logical design phase of a distributed database system. Also, since all the essential details of query processing in CTPN have been simulated, the results of this study can be closely related to real world applications. |
本系統中英文摘要資訊取自各篇刊載內容。