DATABASE SYSTEMS-MINDTAPV2.0
13th Edition
ISBN: 9780357427873
Author: Coronel
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 11, Problem 11RQ
Explanation of Solution
Optimizer hint and its usage:
- Special instructions that are embedded inside the SQL (Structured Query Language) command test for the optimizer is called as optimizer hints.
- Optimizer performs well in choice of the best execution plan in most of the circumstances and there are some situations where the optimizer fails to choose the best execution plan.
- Based on the statistics that exists an optimizer makes decision.
- The statistics that are obtained by the optimizer can be old and that could be the reason for most of optimizer not chooses the best execution plan.
- There are situations where even though a good statistics are obtained, the choice made by the optimizer may not be worthy...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
pattern recognitionPCA algor'thm
Consider the following program: LOAD AC, IMMEDIATE(30)
ADD AC, REGISTER(R1)
STORE AC, MEMORY(20)
Given that the value of R1 is 50, determine the value stored at memory address 20 after the program is executed. Provide an explanation to support your answer.
Pattern RecognitonDecision Tree please write the steps not only last answer
Chapter 11 Solutions
DATABASE SYSTEMS-MINDTAPV2.0
Ch. 11 - Prob. 1RQCh. 11 - What index should you create? Write the required...Ch. 11 - What is the focus of most performance-tuning...Ch. 11 - What are database statistics, and why are they...Ch. 11 - How are database statistics obtained?Ch. 11 - What database statistics measurements are typical...Ch. 11 - How is the processing of SQL DDL statements (such...Ch. 11 - In simple terms, the DBMS processes a query in...Ch. 11 - If indexes are so important, why not index every...Ch. 11 - What is the difference between a rule-based...
Ch. 11 - Prob. 11RQCh. 11 - What are some general guidelines for creating and...Ch. 11 - Prob. 13RQCh. 11 - Prob. 14RQCh. 11 - Prob. 15RQCh. 11 - SELECT SELECT EMP_LNAME, EMP_FNAME, EMP_AREACODE,...Ch. 11 - Problem 1 and 2 are based on the following query:...Ch. 11 - Using Table 11.4 as an example, create two...Ch. 11 - Problems 46 are based on the following query:...Ch. 11 - Problems 46 are based on the following query:...Ch. 11 - Prob. 6PCh. 11 - Problems 732 are based on the ER model shown in...Ch. 11 - Problems 732 are based on the ER model shown in...Ch. 11 - Problems 732 are based on the ER model shown in...Ch. 11 - Problems 732 are based on the ER model shown in...Ch. 11 - Problems 1114 are based on the following query:...Ch. 11 - Problems 1114 are based on the following query:...Ch. 11 - Problems 1114 are based on the following query:...Ch. 11 - Problems 1114 are based on the following query:...Ch. 11 - Problems 15 and 16 are based on the following...Ch. 11 - Problems 15 and 16 are based on the following...Ch. 11 - Problems 1721 are based on the following query:...Ch. 11 - Problems 1721 are based on the following query:...Ch. 11 - Prob. 19PCh. 11 - Prob. 20PCh. 11 - Problems 1721 are based on the following query:...Ch. 11 - SELECT SELECT P_CODE, P_DESCRIPT, P_PRICE,...Ch. 11 - Problems 2224 are based on the following query:...Ch. 11 - Problems 2224 are based on the following query:...Ch. 11 - Problems 25 and 26 are based on the following...Ch. 11 - Problems 25 and 26 are based on the following...Ch. 11 - Prob. 27PCh. 11 - Problems 27 and 28 are based on the following...Ch. 11 - Problems 2932 are based on the following query:...Ch. 11 - Problems 2932 are based on the following query:...Ch. 11 - Problems 2932 are based on the following query:...Ch. 11 - Problems 2932 are based on the following query:...
Knowledge Booster
Similar questions
- Pattern RecognitionPCA algorithmplease write the steps not only last answerarrow_forwardPlease original work Final Project: Part I Background Information: E-TechMart, established in 2005, has grown to become a leading global electronics retailer, renowned for its extensive range of electronic devices and accessories. With a robust online platform and numerous brick-and-mortar stores spread across various regions, E-TechMart serves millions of customers worldwide. The company's product offerings include the latest smartphones, laptops, tablets, smart home devices, and a variety of electronic accessories, catering to both individual consumers and businesses. E-TechMart has always prioritized customer satisfaction and aims to provide an exceptional shopping experience. This commitment is evident in their comprehensive customer service, competitive pricing, and a well-organized loyalty program that rewards repeat customers. Despite these strengths, E-TechMart faces increasing competition from other major players in the electronics retail market. To maintain its competitive…arrow_forwardCan you show me how to redesign the GameStop website using HTML and CSS using Sublime Text?arrow_forward
- Manhattan distancearrow_forwardAiwhat cost from Oradea to Goal which Eforie us A* Algorithm G(n)+H(n) last what ıs the costarrow_forwardWhat is the SELECT statement? give one reference with your answer What is a URL and what is it used for? give one reference with your answer What is e-mail, and what are its advantages? Give one reference with your answerarrow_forward
- What is the difference between the World Wide Web (WWW) and the Internet? Give two references from a journal along with your answer.arrow_forwardDiscuss with appropriate examples, the types of relationship in a database. Give two references from an article.arrow_forwardWhat is a cloud and why do we use it? Give one reference with your answer.arrow_forward
- What are triggers and how do you invoke a trigger on demand? give one reference with your anwer.arrow_forwardWhy is database normalization important? Give one reference with your answer.arrow_forwardDescribe the role of databases and database management systems in the context ofenterprise systems. Give two references with your answer.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781305627482Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781285196145Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos CoronelPublisher:Cengage Learning
- Np Ms Office 365/Excel 2016 I NtermedComputer ScienceISBN:9781337508841Author:CareyPublisher:Cengage
A Guide to SQLComputer ScienceISBN:9781111527273Author:Philip J. PrattPublisher:Course Technology Ptr
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Cengage Learning
Np Ms Office 365/Excel 2016 I Ntermed
Computer Science
ISBN:9781337508841
Author:Carey
Publisher:Cengage
A Guide to SQL
Computer Science
ISBN:9781111527273
Author:Philip J. Pratt
Publisher:Course Technology Ptr