A Guide to SQL
9th Edition
ISBN: 9781111527273
Author: Philip J. Pratt
Publisher: Course Technology Ptr
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Chapter 3, Problem 12RQ
Explanation of Solution
Difference between “CHAR” and “VARCHAR”:
| CHAR | VARCHAR |
| “CHAR” is fixed length data type. | “VARCHAR” is the variable length data type. |
| The storage size is equal to the maximum size of the column. | The storage size is equal to the actual length of the data. |
| The keyword “CHAR” is used to declare the variable... |
Explanation of Solution
Appropriate place to use “CHAR” data type:
The “CHAR” data type is a good choice when storing the initial of the name as it takes up the same amount of bytes. It is also suitable to specify the name of the individual as it hold only the list of characters.
Example:
CREATE TABLE EMPLOYEE (
EMP_NU...
Explanation of Solution
URL:
The following given URL provides the examples as referen...
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example inn 100 sqlmstatement
Need to create two store procedures with help.
Below is part of a Student database. The primary keys are highlighted in bold.
Student (studNo, studName, address, mobileNo)
Registration (studNo, courseNo, regDate, semester, session)
Course (courseNo, courseName, creditHour, level)
Project (projNo, projName, courseNo)
Assignment (projectNo, studNo, startDate, dueDate, hoursSpent)
QUESTION
1. Write a PL/SQL FUNCTION that calculates the cost each student has to pay for all courses taken. In the photo is example the cost detail for each course.
2. Write a PL/SQL Procedure to call the function you created in question 1 . Allow the user to enter the student ID (studno).
SECOND PHOTO IS THE EXAMPLE OF EXPECTED OUTPUT
Chapter 3 Solutions
A Guide to SQL
Ch. 3 - Prob. 1RQCh. 3 - How do you delete a table using SQL?Ch. 3 - Prob. 3RQCh. 3 - Prob. 4RQCh. 3 - Prob. 5RQCh. 3 - Prob. 6RQCh. 3 - Prob. 7RQCh. 3 - Prob. 8RQCh. 3 - Prob. 9RQCh. 3 - Prob. 10RQ
Ch. 3 - Prob. 11RQCh. 3 - Prob. 12RQCh. 3 - Prob. 13RQCh. 3 - Use SQL to complete the following exercises....Ch. 3 - Prob. 2TDCh. 3 - Prob. 3TDCh. 3 - Prob. 4TDCh. 3 - Prob. 5TDCh. 3 - Prob. 6TDCh. 3 - Prob. 7TDCh. 3 - Prob. 1CATCh. 3 - Add the following row to the ADVENTURE_TRIP table:...Ch. 3 - Prob. 3CATCh. 3 - Prob. 4CATCh. 3 - Prob. 5CATCh. 3 - Prob. 6CATCh. 3 - Review the data for the TRIP table in Figure 1-5...Ch. 3 - Colonial Adventure Tours would like to increase...Ch. 3 - Prob. 1SCGCh. 3 - Add the following record to the VACATION_UNIT...Ch. 3 - Delete the VACATION_UNIT table.Ch. 3 - Prob. 4SCGCh. 3 - Prob. 5SCGCh. 3 - Prob. 6SCGCh. 3 - The SERVICE_REQUEST table uses the CHAR data type...
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