person (driver_id, name, address) car (license, model, year) accident (report_number, date, location) owns (driver_id, license) participated (report number, license, driver id, damage amount) Figure 3.18 Insurance database for Exercises 3.4 and 3.14. Consider the insurance database of Figure 3.18, where the primary keys are underlined. Construct the following SQL queries for this relational database. a. Find the total number of people who owned cars that were involved in accidents in 2009. b. Add a new accident to the database; assume any values for required attributes. c. Deletethe Mazda belonging to "John Smith".
person (driver_id, name, address) car (license, model, year) accident (report_number, date, location) owns (driver_id, license) participated (report number, license, driver id, damage amount) Figure 3.18 Insurance database for Exercises 3.4 and 3.14. Consider the insurance database of Figure 3.18, where the primary keys are underlined. Construct the following SQL queries for this relational database. a. Find the total number of people who owned cars that were involved in accidents in 2009. b. Add a new accident to the database; assume any values for required attributes. c. Deletethe Mazda belonging to "John Smith".
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Transcribed Image Text:person (driver_id, name, address)
car (license, model, year)
accident (report_number, date, location)
owns (driver_id, license)
participated (report number, license, driver_id, damage amount)
Figure 3.18 Insurance database for Exercises 3.4 and 3.14.
Consider the insurance database of Figure 3.18, where the primary keys are underlined. Construct the following SQL
queries for this relational database.
a. Find the total number of people who owned cars that were involved in accidents in 2009.
b. Add a new accident to the database; assume any values for required attributes.
c. Deletethe Mazda belonging to "John Smith".
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