Query Optimization in OODBMS using Query Decomposition & Query Caching

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Provided by: Auricle Technologies
Topic: Storage
Format: PDF
Query optimization is of great importance for the performance of databases, especially for the execution of complex query statements. A query optimizer determines the best strategy for performing each query. These decisions have a tremendous effect on query performance, and query optimization is a key technology for every application, from operational systems to data warehouse and analysis systems to content-management systems. For example, query optimizers transform query statements, so that these complex statements can be transformed into semantically equivalent, but better performing, query statements.
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