Database Systems: Design, Implementation, & Management
12th Edition
ISBN: 9781305627482
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 1, Problem 8P
Program Plan Intro
Data redundancy:
- Data redundancy is the presence of repeated data in the storage device. It consists of duplicate data that is additional to the actual data.
- In this, the data related to a folder can be seen in other folders also. For example, file related to science folder can be seen in mathematics or social.
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Chapter 1 Solutions
Database Systems: Design, Implementation, & Management
Ch. 1 - Prob. 1RQCh. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Prob. 5RQCh. 1 - Prob. 6RQCh. 1 - Prob. 7RQCh. 1 - Prob. 8RQCh. 1 - Prob. 9RQCh. 1 - Prob. 10RQ
Ch. 1 - Prob. 11RQCh. 1 - Prob. 12RQCh. 1 - Prob. 13RQCh. 1 - What are some basic database functions that a...Ch. 1 - Prob. 15RQCh. 1 - Prob. 16RQCh. 1 - Prob. 17RQCh. 1 - Prob. 1PCh. 1 - Prob. 3PCh. 1 - Prob. 4PCh. 1 - Prob. 5PCh. 1 - Prob. 6PCh. 1 - Prob. 7PCh. 1 - Prob. 8PCh. 1 - Prob. 9PCh. 1 - Prob. 10PCh. 1 - Using your schools student information system,...
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- Inserting data into a flat-file database is very straightforward and usually amounts to simply tacking the new data onto the end of the data file. For example, inserting a new megalith record into a colon-arrow_forwardHow many records does the file contain? How many fields are there per record? What problem would you encounter if you wanted to produce a listing by city? How would you solve this problem by altering the file structure? If you wanted to produce a listing of the file contents by last name, area code, city, state, or zip code, how would you alter the file structure? What data redundancies do you detect? How could those redundancies lead to different types of anomalies?arrow_forwardGive Advantages of using pointers in file organization as compare to sequential file organization.arrow_forward
- Apart from immutability, what other extended file attributes are there?arrow_forwardGive a brief summary of the three major file organization techniques.arrow_forwardA primary index is created on a a) non-key, non-ordering attribute of a file b) non-key, ordering attribute of a file c) key, non-ordering attribute of a file d) key, ordering attribute of a filearrow_forward
- A unique secondary index is created on a a) non-key, non-ordering attribute of a file b) non-key, ordering attribute of a file c) key, non-ordering attribute of a file d) key, ordering attribute of a filearrow_forwardThe following record structure describes a movie file: the title of the film, the director's style, and the budget Assume that the file's primary key is the title of the film. The field type describes the genre of the film, such as drama, science fiction, horror, crime thriller, comedy, etc. Enter a sample set of records into the movie file of your choosing.i) Create a primary ISAM file organisation system based on indexes.ii) Put in place supplementary indexes for the director, type, and cost of production.iii) How may Programming Assignment 3's secondary index-based file organisation be utilised to respond to a question like "Which directors have overseen comedies or dramas that have incurred the highest production costs?arrow_forwardGive the benefits of employing pointers in file organization over sequential file structure.arrow_forward
- What does "file handling" really include, and why is it even necessary to use its services in the first place? Please include as much information as you can about.arrow_forwardWhat would be the advantages of this file organization compared with a sequential file organization?arrow_forwardThe optimum file arrangement in which all data records must be processed in a file namedarrow_forward
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