What is meant by cost-based query optimization?
Question:
What is meant by cost-based query optimization?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 75% (4 reviews)
Costbased query optimization compares different strategies ...View the full answer
Answered By
Sandra Dimaala
Sandra from Philippines ,LICENSED PROFESSIONAL TEACHER.
Teachers are our nation builders—the strength of every profession in our country grows out of the knowledge and skills that teachers help to instill in our children. And, as a nation, we must do much, much more to fully appreciate and support their work.
0.00
0 Reviews
10+ Question Solved
Related Book For
Fundamentals Of Database Systems
ISBN: 9780133970777
7th Edition
Authors: Ramez Elmasri, Shamkant Navathe
Question Posted:
Students also viewed these Computer science questions
-
What is meant by cost structure? Explain how a companys cost structure affects its break-even point.
-
What is meant by optimization? How does optimization by levels differ from optimization by differences?
-
What is meant by the reference in Table 5.3-1 to an FAS 116 adjustment? How are contributions recorded? Is there a distinction between pledges receivable and accounts receivable? Are there...
-
Describe the risk assessment approach used for Enterprise Risk Management(ERM) at Worker's Compensation Fund(WCF). How does this approach compare to ISO 31000? Does it consider risks with upside...
-
Make up and draw an example of each of the following distributions: (a) Symmetrical. (b) Rectangular. (c) Skewed to the right.
-
Read the article at xbrl.us/learn/documents/betterreporting.pdf. Briefly describe what this article says about how XBRL has transformed financial reporting.
-
The report Net Zero Momentum Tracker: Superannuation Sector examines 20 of the largest superannuation funds in Australia, and looks at these organisations different investment styles and...
-
Millennial Technologies, a designer, manufacturer, and marketer of PC cards for portable computers, printers, telecommunications equipment, and equipment diagnostic systems, was the darling of Wall...
-
1. Which of the following is a CORRECT statement? 2. 3. (a) 2.3056+10.138-7.4671 = 4.9765 (b) 2.38 x 1.0 = 2.38 8.05 (c) -=2.6 3.1 (d) (1.11 0.1) x 9.0 = 9.0 A projectile travels at 0 below...
-
Briefly define the horizontal, hollow, modular, network, and virtual organization designs. How do these differ from the classical design? How do they better meet the challenges of the new environment?
-
How many different join orders are there for a query that joins 10 relations? How many left-deep trees are possible?
-
What is the optimization approach based on dynamic programming? How is it used during query optimization?
-
Suppose the x-coordinates of the data (x 1 ; y 1 ),.....(x n , y n ) are in mean deviation form, so that x i = 0. Show that if X is the design matrix for the least-squares line in this case, then X...
-
calculate the following for all 3 years. 1-Net operating working Capital 2-Working Capital 3-Net Working Capital 6703 8 9 Consolidated Scale Cash & equivalents Accounts & notes receivable 14...
-
What areas if any does US health care system outrank other countries? Do you feel that these strengths helps to validate the rising costs of health care ? Why or why not
-
Find a formula for the inverse of the following function, if possible. 5 W(x) 2x-2
-
What might be the impact of laissez faire leadership style on health care safety and quality outcomes?
-
Consider the following scenario: You are the safety manager for a team that is working to 10-story addition to a hospital. The framework of the addition will be steel and concrete. The floors will be...
-
John and Maria are having dinner, and each orders a cup of coffee. John cools his coffee with some cream. They wait I 0 minutes and then Maria cools her coffee with the same amount of cream. The two...
-
Prepare a stock card using the following information A company is registered for GST which it pays quarterly, assume GST was last paid on the 30th of June 2019. It uses weighted average cost...
-
We need a three-stage space-division switch with N = 100. We use 10 crossbars at the first and third stages and 4 crossbars at the middle stage. a. Draw the configuration diagram. b. Calculate the...
-
Consider an n k crossbar switch with n inputs and k outputs. a. Can we say that the switch acts as a multiplexer if n > k? b. Can we say that the switch acts as a demultiplexer if n < k?
-
A light signal is travelling through a fiber. What is the delay in the signal if the length of the fiber-optic cable is 10 m, 100 m, and 1 Km (assume a propagation speed of 2 10 8 m)?
-
(d) Describe (with the help of a diagram) the nature of the Nash bargaining solution (NBS), where both Sarah and Josh influence the outcome.
-
What challenges arise when implementing concurrency control mechanisms in non-relational databases, such as document-oriented or graph databases, and how do their underlying data models influence the...
-
How many years will it take for your money to tripple if you deposit $1000 in a bank account that pays 12% a year, compounded semi-annually? Your Answer: Answer
Study smarter with the SolutionInn App