Database Systems: Design, Implementation, & Management
12th Edition
ISBN: 9781305627482
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 16, Problem 12RQ
Program Plan Intro
The person responsible for the maintaining the shared and centralized database is known as Database Administrator (DBA).
The role and responsibilities of the DBA varies from organization to organization based on the size of the organization. Based on the organization, DBA defined either in line position or staff position.
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The eight cost estimation approaches may be paired with a number of heuristic criteria during DBMS query optimisation, each of which might have a significant influence on the DBA's workload.
When a DBMS optimizes a query, it may combine multiple heuristic rules and cost estimate strategies. How does this affect the DBA's workload?
During the process of DBMS query optimization, could you please discuss how each of the eight cost estimating methods may be matched with a distinct set of heuristic criteria and how this influences the amount of work that a DBA is required to carry out?
Chapter 16 Solutions
Database Systems: Design, Implementation, & Management
Ch. 16 - Prob. 1RQCh. 16 - Prob. 2RQCh. 16 - Prob. 3RQCh. 16 - Prob. 4RQCh. 16 - Suppose that you are a DBA. What data dimensions...Ch. 16 - How and why did database management systems become...Ch. 16 - Using a single sentence, explain the role of...Ch. 16 - Prob. 8RQCh. 16 - Prob. 9RQCh. 16 - Prob. 10RQ
Ch. 16 - Prob. 11RQCh. 16 - Prob. 12RQCh. 16 - Prob. 13RQCh. 16 - Prob. 14RQCh. 16 - Prob. 15RQCh. 16 - Prob. 16RQCh. 16 - Prob. 17RQCh. 16 - Prob. 18RQCh. 16 - What DBA activities support end users?Ch. 16 - Prob. 20RQCh. 16 - Prob. 21RQCh. 16 - Prob. 22RQCh. 16 - Prob. 23RQCh. 16 - Prob. 24RQCh. 16 - Prob. 25RQCh. 16 - Prob. 26RQCh. 16 - Prob. 27RQCh. 16 - Prob. 28RQCh. 16 - Prob. 29RQCh. 16 - Prob. 30RQCh. 16 - Define the concept of a data dictionary, and...Ch. 16 - Using SQL statements, give some examples of how...Ch. 16 - Prob. 33RQCh. 16 - Prob. 34RQCh. 16 - Prob. 35RQCh. 16 - How have cloud-based data services affected the...Ch. 16 - What tool is used in Oracle to create users?Ch. 16 - In Oracle, what is a tablespace?Ch. 16 - Prob. 39RQCh. 16 - In Oracle, what is a datafile? How does it differ...Ch. 16 - Prob. 41RQ
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- Explain how each of the eight cost estimating strategies may be paired with different heuristic rules during DBMS query optimisation, and how this affects a DBA's workload.arrow_forwardPlease explain how the DBA's workload is affected by the fact that each of the eight cost estimating techniques may be combined with its own special set of heuristic criteria during the process of DBMS query optimisation.arrow_forwardAn description of how the DBMS may combine multiple heuristic rules and cost estimate techniques in the course of query optimisation, as well as how this may impact the amount of work done by the DBA.arrow_forward
- Give further details on the technical duties typically carried out by the DBA's technical function in relation to the design and implementation services they offer.arrow_forwardDuring the process of DBMS query optimisation, please describe how each of the eight cost estimation algorithms can be paired with a unique set of heuristic rules and how this affects the amount of work a DBA must perform.arrow_forwardHow does the DBMS optimize queries by combining several heuristic rules and cost estimate methodologies, and how does this effect the workload of the DBA?arrow_forward
- How the DBMS may increase or reduce the DBA's workload depending on how various heuristic rules and cost estimating approaches are combined during query optimisation.arrow_forwardThe rules employed by the DBMS during the query optimization process are described, as well as the impact this has on the quantity of work that a DBA is required to do.arrow_forwardAn explanation of how the DBMS may blend multiple heuristic rules and cost estimate methodologies to optimise queries and how this may effect DBA workload.arrow_forward
- During the process of DBMS query optimisation, please explain how each of the eight cost estimation algorithms may be matched with a different set of heuristic rules and how this impacts the amount of work a DBA has to do.arrow_forwardDiscussions of the different cost calculation techniques, heuristic recommendations for query optimisation, and how this may affect DBA workload are covered in What Combinations the DBMS Could Provide.arrow_forwardPlease describe how each of the eight cost estimating techniques may be paired with a distinct set of heuristic criteria throughout the DBMS query optimization process and how this affects the amount of work a DBA must perform.arrow_forward
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