Principles of Data Integration || Query Processing
โ Scribed by Doan, AnHai
- Book ID
- 119995693
- Publisher
- Elsevier
- Year
- 2012
- Weight
- 476 KB
- Category
- Article
- ISBN
- 0124160441
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
The problem of query containment is fundamental to many aspects of database systems, including query optimization, determining independence of queries from updates, and rewriting queries using views. In the data-integration framework, however, the standard notion of query containment does not suffic
Generating query-answering plans for data integration systems requires to translate a user query, formulated in terms of a mediated schema, to a query that uses relations that are actually stored in data sources. Previous solutions to the translation problem produced sets of conjunctive plans, and w