Which statement accurately distinguishes the roles of the wrapper and source description in a mediated schema? A The wrapper requests and parses data from the sources, while the source description converts data from the source schemas and values into the global representation. (B) The source description requests and parses data from the sources, while the wrapper converts data from the source schemas and values into the global representation. (C) The wrapper abstracts soyrce data, while the source description requests and parses data from the sources. (D) The source description abstracts source data, while the wrapper requests and parses data from the sources
Which statement accurately distinguishes the roles of the wrapper and source description in a mediated schema? A The wrapper requests and parses data from the sources, while the source description converts data from the source schemas and values into the global representation. (B) The source description requests and parses data from the sources, while the wrapper converts data from the source schemas and values into the global representation. (C) The wrapper abstracts soyrce data, while the source description requests and parses data from the sources. (D) The source description abstracts source data, while the wrapper requests and parses data from the sources
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
Which statement accurately distinguishes the roles of the wrapper and source description in a mediated schema?
A The wrapper requests and parses data from the sources, while the source description converts data from the source schemas and values into the global representation.
(B) The source description requests and parses data from the sources, while the wrapper converts data from the source schemas and values into the global representation.
(C) The wrapper abstracts soyrce data, while the source description requests and parses data from the sources.
(D) The source description abstracts source data, while the wrapper requests and parses data from the sources
AI-Generated Solution
AI-generated content may present inaccurate or offensive content that does not represent bartleby’s views.
Unlock instant AI solutions
Tap the button
to generate a solution
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Recommended textbooks for you
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education