Bundle: Database Systems Design, Implementation, & Management, Loose-leaf Version, 13th + MindTapV2.0, 1 term Printed Access Card
13th Edition
ISBN: 9780357475188
Author: Coronel, Carlos, Morris, Steven
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
Bundle: Database Systems Design, Implementation, & Management, Loose-leaf Version, 13th + MindTapV2.0, 1 term Printed Access Card
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. 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_forwardApart from immutability, what other extended file attributes are there?arrow_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_forwardWhat 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_forward
- When you use the word "metadata," what precisely do you mean by that? The following is an explanation of what metadata is in the context of a data set: When may it be advantageous to make use of the metadata that has been taken from a result set?arrow_forwardWhat function do different file modes serve within the context of file operations? Specify each of the different file mode constants and explain their significance.arrow_forwardThe method of file organization in which data records in a file are arranged in a specified order according to key field is known as the (A) Sequential access method (B) Queuing method (C) Predetermined method (D) Direct access methodarrow_forward
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