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Database Systems: Design, Implemen...

13th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781337627900

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Chapter
Section
BuyFindarrow_forward

Database Systems: Design, Implemen...

13th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781337627900
Chapter 3, Problem 27RQ
Textbook Problem
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What would be the conceptual view of the INDEX table described in Question 26? Depict the contents of the conceptual INDEX table.

Program Plan Intro

Index Table:

Index Tables are created to create index over the fields in data stores which are frequently referenced by queries. Creating indexes can improve the query performance in database by allowing applications to locate the data quickly to retrieve from a data store. This is done at the cost of additional writes and storage space to maintain the index data structure.

Index Key:

The key which is used to uniquely identify the index table is referred as Index Key. Index key can have null as its value. The index is a small database which hare sorted by key values.

Explanation of Solution

Given database tables:

Table Name: DIRECTOR

DIR_NUM DIR_LNAME DIR_DOB
100 Broadway 12-Jan-65
101 Hollywoody 18-Nov-53
102 Goofy 21-Jun-62

Table Name: PLAY

PLAY_CODE PLAY_NAME DIR_NUM
1001 Cat On a Cold, Bare Roof 102
1002 Hold the Mayo, Pass the Bread 101
1003 I Never Promised You Coffee 102
1004 Silly Putty Goes to Washington. 100
1005 See No Sound, Hear No Sight 101
1006 Star struck in Biloxi 102
1007 Stranger in Farrot Ice 101

INDEX TABLE:

In order to get a listing of all plays directed by a given director, a query result would take much time. In order to improve the query performance one can create an index table to have a quick look up capability to get the listings of all plays directed by a given director...

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Chapter 3 Solutions

Database Systems: Design, Implementation, & Management
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Ch. 3 - Create the basic ERD for the database shown in...Ch. 3 - Create the relational diagram for the database...Ch. 3 - Use Figure Q3.13 to answer Questions 1317. FIGURE...Ch. 3 - Create the table that results from applying a...Ch. 3 - Write the relational algebra formula to apply an...Ch. 3 - Create the table that results from applying an...Ch. 3 - Using the tables in Figure Q3.13, create the table...Ch. 3 - Suppose you have the ERD shown in Figure Q3.18....Ch. 3 - What are homonyms and synonyms, and why should...Ch. 3 - How would you implement a l:M relationship in a...Ch. 3 - Identify and describe the components of the table...Ch. 3 - Identify the primary keys. FIGURE Q3.22 THE...Ch. 3 - Identify the foreign keys. FIGURE Q3.22 THE...Ch. 3 - Create the ERM. FIGURE Q3.22 THE CH03_THEATER...Ch. 3 - Create the relational diagram to show the...Ch. 3 - Suppose you wanted quick lookup capability to get...Ch. 3 - What would be the conceptual view of the INDEX...Ch. 3 - For each table, identify the primary key and the...Ch. 3 - Do the tables exhibit entity integrity? Answer yes...Ch. 3 - Do the tables exhibit referential integrity?...Ch. 3 - Describe the type(s) of relationship(s) between...Ch. 3 - Create the ERD to show the relationship between...Ch. 3 - Create the relational diagram to show the...Ch. 3 - Describe the type(s) of relationship(s) between...Ch. 3 - Create the ERD to show the relationships among...Ch. 3 - Create the relational diagram to show the...Ch. 3 - For each table in the database, identify the...Ch. 3 - Create the ERD to show the relationship between...Ch. 3 - Create the relational diagram to show the...Ch. 3 - Do the tables exhibit entity integrity? Answer yes...Ch. 3 - Do the tables exhibit referential integrity?...Ch. 3 - Create the ERD to show the relationships among...Ch. 3 - Create the relational diagram to show the...Ch. 3 - For each table, identify the primary key and the...Ch. 3 - Do the tables exhibit entity integrity? Answer yes...Ch. 3 - Do the tables exhibit referential integrity?...Ch. 3 - Identify the TRUCK tables candidate key(s). FIGURE...Ch. 3 - For each table, identify a superkey and a...Ch. 3 - Create the ERD for this database. FIGURE P3.17 THE...Ch. 3 - Create the relational diagram for this database....Ch. 3 - For each table, identify each of the following...Ch. 3 - Create the ERD. (Hint: Look at the table contents....Ch. 3 - Create the relational diagram. FIGURE P3.24 THE...Ch. 3 - Modify the ERD you created in Problem 25 to...Ch. 3 - Create the relational diagram for the design you...Ch. 3 - Create the table that would result from applying...Ch. 3 - Create the table that would result from applying...Ch. 3 - Create the table that would result from applying a...

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