Research on data consistency in spatial database system |
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| Authors: | Zhu Xinyan Wen Yi Li Deren Gong Jianya |
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| Institution: | (1) National Laboratory of Information Engineering In Surveying, Mapping and Remote Sensing, WTUSM, 129 Luoyu Road, 430079 Wuhan, China |
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| Abstract: | In this paper, two cases of data consistency problems are discussed in Multi-user Geographical Information System. When a
user updates some spatial data that have been accessed by other users in database, or executes an UNDO/REDO operation, data
consistency will probably be destroyed. To solve the problem caused by the first case, a “Notification-Reread Method” is introduced.
As for the second case, there are many problems to be studied. |
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| Keywords: | data sharing data consistency lock UNDO/REDO transaction notification_reread method |
| 本文献已被 CNKI 维普 SpringerLink 等数据库收录！ |
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