EBK DATABASE CONCEPTS
7th Edition
ISBN: 9780100794238
Author: AUER
Publisher: YUZU
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Chapter 1, Problem 1.20RQ
Program Plan Intro
Index:
Index is a table or other data structure which is used to determine the file from a specific location that satisfies some condition.
It is the key field used to retrieve the records in efficiently from the
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When is it acceptable to manually create an index?
Describe the purpose and benefits of using indexes in a database. Provide an example of a scenario where creating an index would be advantageous.
True or False When working with the data in a database table, the column that is designated as the primary key must hold a unique value for each row.
Chapter 1 Solutions
EBK DATABASE CONCEPTS
Ch. 1 - Why is the study of database technology important?Ch. 1 - Prob. 1.2RQCh. 1 - Describe the purpose of a database.Ch. 1 - Prob. 1.4RQCh. 1 - Prob. 1.5RQCh. 1 - Prob. 1.6RQCh. 1 - Prob. 1.7RQCh. 1 - Break the list in Figure 1-34 into two tables,...Ch. 1 - Show how the tables you created for question 1.11...Ch. 1 - Prob. 1.10RQ
Ch. 1 - Prob. 1.11RQCh. 1 - Break the list in Figure 1-35 into tables, each...Ch. 1 - Describe in your own words and illustrate with...Ch. 1 - Prob. 1.14RQCh. 1 - Define the term database.Ch. 1 - Prob. 1.17RQCh. 1 - List the components of a database.Ch. 1 - Prob. 1.19RQCh. 1 - Prob. 1.20RQCh. 1 - Prob. 1.21RQCh. 1 - What is the purpose of a DBMS?Ch. 1 - List the specific functions of a DBMS.Ch. 1 - Define the term referential integrity constraint....Ch. 1 - Prob. 1.25RQCh. 1 - List the functions of a database application.Ch. 1 - Prob. 1.27RQCh. 1 - Prob. 1.28RQCh. 1 - Prob. 1.29RQCh. 1 - Prob. 1.30RQCh. 1 - Prob. 1.31ECh. 1 - Prob. 1.32ECh. 1 - Prob. 1.33E
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- A(n) _____ is a request for specific information from a database.arrow_forwardA unique identifier for a data row that consists of more than one field is commonly called a: primary plus key composite primary key foreign key none of the abovearrow_forwardAssign privileges to the new account that allow connecting to the database, creating new tables, and altering an existing table.arrow_forward
- One way to secure a database is to allow only administrators to have access to create and delete tables. (513)arrow_forwardAccess path A database table is composed of records and fields hold data. Data is stored in records. A field is a part of a record and contains a single piece of data for the subject of the record. The access path for finding the list of books is AUTHOR: AuthorID, Lname BOOKAUTHOR: AuthorID, ISBN BOOKS: Pubdate, ISBNarrow_forwardDefine the role of the database schema, data definition language, and data manipulation language.arrow_forward
- An in-memory database (IMDB) is a database management system that stores the entire database in _______. a. random access memory b. read-only memory c. distributed servers d. virtual memoryarrow_forwardHow do you create an index? How do you create a unique index? What is the difference between an index and a unique index?arrow_forwardDescribe the purpose and advantages of using indexes in a database.arrow_forward
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