Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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Chapter 1, Problem 13MC
Program Description Answer
A “Foreign key” also serve as a primary key in another table when two tables are joined together on that value.
Hence, correct answer is option “A”.
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Second normal form says:
a. No nonkey columns depend on another nonkey column.
b. Every column that's not part of the primary key is fully dependent on the primary key.
c. Eliminate repeated fields.
d. None of the above
Third normal form says:
a. No nonkey columns depend on another nonkey column.
b. Every column that's not part of the primary key is fully dependent on the primary key.
c. Eliminate repeated fields.
d. None of the above.
THIS MODULE IS ABOUT SUBQUERIES, SO YOU MUST USE SUBQUERIES INSTEAD OF TABLE JOINS
(a) From which two fields in which table can you calculate the enrollment of a section?(b) From which table can you get both course and section numbers?(c) Which field in table SECTION uniquely identifies a section, section id or section no?(d) Write a SQL statement to show sections and their enrollment.(e) Write a SQL statement to show sections with enrollment greater than five. Display both course andsection numbers
Chapter 1 Solutions
Oracle 12c: SQL
Ch. 1 - Prob. 1RQCh. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Discuss the problems that can be caused by data...Ch. 1 - Explain the role of a primary key.Ch. 1 - Prob. 7RQCh. 1 - Prob. 8RQCh. 1 - What type of relationship can’t be stored in a...Ch. 1 - Identify at least three reasons an organization...
Ch. 1 - Prob. 1MCCh. 1 - Prob. 2MCCh. 1 - Prob. 3MCCh. 1 - Prob. 4MCCh. 1 - Prob. 5MCCh. 1 - Prob. 6MCCh. 1 - Prob. 7MCCh. 1 - Which of the following has no partial or...Ch. 1 - Prob. 9MCCh. 1 - Which of the following has no partial dependencies...Ch. 1 - Which of the following has no repeating groups but...Ch. 1 - Prob. 12MCCh. 1 - Prob. 13MCCh. 1 - A unique identifier for a data row that consists...Ch. 1 - Which of the following symbols represents an...Ch. 1 - Prob. 16MCCh. 1 - Which of the following represents a field in a...Ch. 1 - Which of the following defines a relationship in...Ch. 1 - When part of the data in a table depends on a...Ch. 1 - Which of the following is used to join data...Ch. 1 - Which tables and fields would you access to...Ch. 1 - Prob. 2HOACh. 1 - Prob. 3HOACh. 1 - Prob. 4HOACh. 1 - Access path A database table is composed of...Ch. 1 - Prob. 6HOACh. 1 - Prob. 7HOACh. 1 - Prob. 8HOACh. 1 - Prob. 9HOACh. 1 - Prob. 10HOA
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- Complete the SQL statement to generate the Result table. The column names in the SELECT clause must match the Result table exactly. Order Part • OrderCode PartNumber R58 492 Quantity 4 • PartNumber PartName Price 662 Z23 492 3 492 Wingding Buzzer 11 0.4 A36 662 1 R61 827 1 SELECT /* Type your code here */ FROM Order, Part WHERE /* Type your code here */ Result OrderCode PartName Order.PartNumber Buzzer 492 R58 Z23 Buzzer 492 A36 Wingding 662arrow_forwardA foreign key is the candidate key that is selected to identify tuples. True or False.arrow_forward**In SQL** Write a SELECT statement that returns these columns: InstructorDept The DepartmentName column from the Departments table for a related instructor LastName The LastName column from the Instructors table FirstName The FirstName column from the Instructors table CourseDescription The CourseDescription column from the Courses table CourseDept The DepartmentName column from the Departments table for a related instructor Return one row for each course that’s in a different department than the department of the instructor assigned to teach that course. (Hint: You will need to join the Departments table to both the Instructors table and the Courses table, which will require you to use table aliases to distinguish the two tables.)arrow_forward
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- Execute the following statements using MYSQL: 1.Create a Trigger "trigger regno" for the salesman table (Before INSERT) set the value as O for the experience > 7 and evaluate it. Also write the syntax to drop the Trigger "trigger regno* 2. Insert a value for Customer table (#Last 3 digit of your register no, #Your name, Vellore, 55, 010). Insert a value for salesman table ("10", #Your name, 5, 4000). 3. List out the number of customers in each city by arranging them from low to high. ( 4. Select all the salesman who's work experience is between 4 and 8.arrow_forwardWrite SQLSQL statements for following: Student( Enrno, name, courseId, emailId, cellno)Course(courseId, course_nm, duration)i) Add a column city in student tableii) Find out list of students who have enrolled in “computer” course.iii) List name of all courses with their duration.iv) List name of all students start with 'a'.v) List email Id and cell no of all mechanical engineering students.arrow_forwardWrite SQL code for (see image for the table structure): Create a stored procedure “changeCreditLimit” to change the credit limit for a given customer. If the customer’s total payment amount (note: payment amount is in the table “payments”) is not smaller than a given amount, then add 2000 to the customer’s credit limit (note: credit limit is in the table “customers”).arrow_forward
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