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What is Query Optimization Techniques Explained about?
Query optimization involves creating a query execution plan (QEP) to minimize costs, utilizing a query optimizer with components like a search space and cost model. Dynamic query optimization executes queries in real-time, while eager update propagation ensures all replicas are updated synchronously for consistency, but can slow down transactions. In contrast, lazy update propagation allows transactions to commit after updating one replica, improving response times but risking data inconsistency among repli
- Author
- Mukhtar Ahmad Malik
- Language
- EN