International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 110 - Number 6 |
Year of Publication: 2015 |
Authors: Mohamed Osman Ali Hegazi |
10.5120/19322-0901 |
Mohamed Osman Ali Hegazi . An Approach for Designing and Implementing Eager and lazy Data Replication. International Journal of Computer Applications. 110, 6 ( January 2015), 30-33. DOI=10.5120/19322-0901
Replication can be a success factor in database systems as well as perhaps being one of the needs of proliferation, expansion, and the rapid progress of databases and distributed technology, despite there being a strong belief among database designers that most existing solutions are not feasible due to their complexity, poor performance and lack of scalability. This paper provides an approach that can help designers in implementing eager and lazy replication mechanisms. The proposed approach contains two phases: In the first phase, the database is designed to have indicator fields that can carry the update status, and to consider the replication concepts by classifying, categorizing and determining the kinds and locations of data objects; in the second phase, the updating methodology is provided to make the implementation of eager and lazy replication mechanisms easier and reliable.