The activity of choosing an efficient execution strategy for processing a query is called asSelect one:a. Query plan evaluationb. Query executionc. Query parsingd. Query optimization

What is TRUE about Query Optimization?Select one:a. All of the aboveb.The cost of evaluating a query can vary depending on its type.c.The evaluation plan is built by the system, so the user need not focus on writing their query efficiently.d.An efficient query evaluation plan is generated by a database system, which minimizes its costs.

A query execution plan provides crucial assistance for query optimization by showing the following elements:Select THREE.A. Join typeB. Alternative (more suitable) join conditionC. Estimated query costD. NO STATISTICS indicator

In the context of a database system, which component is responsible for optimizing SQL queries for better performance?Database EngineTransaction ManagerStorage ManagementQuery ProcessorReview AnswerNext

What are some advanced query optimization techniques not mentioned earlierReview LaterUsing stored procedures instead of ad-hoc queries.Utilizing query hints to force specific execution plans.Employing database partitioning for large tables.Implementing data caching mechanisms.

What is the primary function of the global query optimizer in distributed query processing?Question 11Select one:A.To distribute queries to the appropriate local sitesB.To encrypt the query dataC.To compress the query resultsD.To maintain data consistencyE.To manage data replication