EBK DATABASE CONCEPTS
7th Edition
ISBN: 9780133544886
Author: AUER
Publisher: PEARSON CUSTOM PUB.(CONSIGNMENT)
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Textbook Question
Chapter 1, Problem 1.24RQ
Define the term referential integrity constraint. Give an example of a referential integrity constraint for the tables you created for question 1.11.
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Define the term referential integrity constraint. Give an example of a referential integrity constraint for the tables you created for question 1.8.
Subject: DatabaseANSWER THE FOLLOWING QUESTIONS BASED ON THE GIVEN TABLE
a) write the DDL statement to create the table CUSTOMER_DETAIL with the primary key constraint. (use most appropriate data type for each attribute).
b) Add NOT NULL constraint to attribute of CustomerName
c) Add a column named "Country" in the CUSTOMER_DETAIL table
d) Rename the table to CUSTOMER
Write SQL statements to create at the two tables for the database. The tables must have at least three relevant columns with appropriate types, a primary key and at least one table should have a foreign key and the related foreign key constraints.
CREATE TABLE students (
Student_id int NOT NULL PRIMARY KEY,
Stud_firstname VARCHAR(30) NOT NULL,
Stud_lastname VARCHAR(30) NOT NULL,
Stud_email VARCHAR(80) NOT NULL UNIQUE
advisor_id int,
);
create table advisor (
advisor_id int not null primary key,
stud_id int,
adv_firstname varchar(30),
adv_lastname varchar(30),
foreign key(student_id) references students(student_id)
);
[keep getting error, need help correcting]
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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- Not all versions of this database include referential integrity constraints for all foreign keys. Use whatever commands are available for the RDBMS you are using, investigate if any referential integrity constraints are missing. Write any missing constraints and, if possible, add them to the associated table definitions.arrow_forwardWrite a Structured Query Language (SQL) statement for each of the following questions:a) Create the AppointmentDetails table with the following requirements: Appropriate data types. All keys can store between 6 to 10 characters. All the columns must have values (cannot be empty). Add on charges is set to 0.00 by default. Enforce entity and referential integrities. b) Diplay the therapists’ particulars (include TheraName, TheraContact) as first two columns, then calculate the Total_Count_Of_Appointment for each therapist within the year 2020 as third columns. Lastly, arrange the outcome to show the list by the higher popularity of therapists first.arrow_forwardWhat is the difference between a PRIMARY KEY constraint and a UNIQUE constraint? ( refer to the tables in the JustLee Books database).arrow_forward
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- Refer to the description, ERD, and sample data shown in Capure C in the image attached. Code the Oracle SQL statement(s) to build the Pet table, including all constraints. Make the attributes a reasonable size according to the description and sample dataarrow_forwardDetermine the functional dependencies that exist in the following table and then convert this table to an equivalent collection of tables that are in third normal form. Office (OFFICE_NUM, OFFICE_NAME, (ADDRESS, SQR_FT, BDRMS, FLOORS, MONTHLY_RENT, OWNER_NUM)arrow_forwardUsing the Henry Books database, add the new title from Stephen King to the wrote table: Book code = 3578 Author number = 6 Edition = 1 You will insert 2 snips for this question. What construct did you use to add a row to the wrote table. Insert the snip of the construct used: Insert the snip of the wrote table. Be sure the new row is displayed:arrow_forward
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