An Idea of Extraction of Information Using Query Optimization and Rank Query

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Provided by: International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Topic: Data Management
Format: PDF
Information retrieving and storing are the basic tasks of the relational database. Query optimization is used for accessing database in an efficient manner, analyzing and choosing an optimized plan is a complex process. Today's end-users are more interested in specific results rather than getting response in short time. Ranking queries (or top-k queries) are support for accessing specific results based on user's demand. Efficient execution of top-k queries is becoming a major challenge for relational database. Ranking queries produce results that are ordered on some ranking attribute.
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