1 Database Systems 2 Data Models 3 The Relational Database Model 4 Entity Relationship (er) Modeling 5 Advanced Data Modeling 6 Normalization Of Database Tables 7 Introduction To Structured Query Language (sql) 8 Advanced Sql 9 Database Design 10 Transaction Management And Concurrency Control 11 Database Performance Tuning And Query Optimization 12 Distributed Database Management Systems 13 Business Intelligence And Data Warehouses 14 Big Data Analytics And Nosql 15 Database Connectivity And Web Technologies 16 Database Administration And Security Chapter3: The Relational Database Model
3.1 A Logical View Of Data 3.2 Keys 3.3 Integrity Rules 3.4 Relational Algebra 3.5 The Data Dictionary And The System Catalog 3.6 Relationships Within The Relational Database 3.7 Data Redundancy Revisited 3.8 Indexes 3.9 Codd’s Relational Database Rules Chapter Questions Section: Chapter Questions
Problem 1RQ: What is the difference between a database and a table? Problem 2RQ Problem 3RQ Problem 4RQ: What are the requirements that two relations must satisfy to be considered union-compatible? Problem 5RQ: Which relational algebra operators can be applied to a pair of tables that are not union-compatible? Problem 6RQ: Explain why the data dictionary is sometimes called the database designers database. Problem 7RQ: A database user manually notes that The file contains two hundred records, each record containing... Problem 8RQ Problem 9RQ Problem 10RQ Problem 11RQ Problem 12RQ Problem 13RQ: Use Figure Q3.13 to answer Questions 1317. FIGURE Q3.13 THE CH03_VENDINGCO DATABASE TABLES Write the... Problem 14RQ: Create the table that results from applying a UNION relational operator to the tables shown in... Problem 15RQ: Write the relational algebra formula to apply an INTERSECT relational operator to the tables shown... Problem 16RQ: Create the table that results from applying an INTERSECT relational operator to the tables shown in... Problem 17RQ: Using the tables in Figure Q3.13, create the table that results from MACHINE DIFFERENCE BOOTH.... Problem 18RQ Problem 19RQ Problem 20RQ Problem 21RQ: Identify and describe the components of the table shown in Figure Q3.21, using correct terminology.... Problem 22RQ: Identify the primary keys. FIGURE Q3.22 THE CH03_THEATER DATABASE TABLES Problem 23RQ: Identify the foreign keys. FIGURE Q3.22 THE CH03_THEATER DATABASE TABLES Problem 24RQ: Create the ERM. FIGURE Q3.22 THE CH03_THEATER DATABASE TABLES Problem 25RQ: Create the relational diagram to show the relationship between DIRECTOR and PLAY. Problem 26RQ Problem 27RQ: What would be the conceptual view of the INDEX table described in Question 26? Depict the contents... Problem 1P Problem 2P Problem 3P: Do the tables exhibit referential integrity? Answer yes or no, and then explain your answer. Write... Problem 4P: Describe the type(s) of relationship(s) between STORE and REGION. Problem 5P Problem 6P Problem 7P Problem 8P Problem 9P: Create the relational diagram to show the relationships among EMPLOYEE, STORE, and REGION. FIGURE... Problem 10P Problem 11P Problem 12P: Create the relational diagram to show the relationship between EMPLOYEE and JOB. Problem 13P Problem 14P: Do the tables exhibit referential integrity? Answer yes or no, and then explain your answer. Write... Problem 15P Problem 16P Problem 17P: For each table, identify the primary key and the foreign key(s). If a table does not have a foreign... Problem 18P Problem 19P: Do the tables exhibit referential integrity? Answer yes or no, and then explain your answer. Write... Problem 20P: Identify the TRUCK tables candidate key(s). FIGURE P3.17 THE CH03_TRANSCO DATABASE TABLES Problem 21P: For each table, identify a superkey and a secondary key. FIGURE P3.17 THE CH03_TRANSCO DATABASE... Problem 22P Problem 23P Problem 24P Problem 25P: Create the ERD. (Hint: Look at the table contents. You will discover that an AIRCRAFT can fly many... Problem 26P Problem 27P Problem 28P Problem 29P: Create the table that would result from applying the SELECT and PROJECT relational operators to the... Problem 30P: Create the table that would result from applying the SELECT and PROJECT relational operators to the... Problem 31P: Create the table that would result from applying a DIFFERENCE relational operator of your result... Problem 10P
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What categories exist inside a database for the data included in each row of each table?
Organized collection of structured information, or data, typically stored in a computer system.
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