A Guide to SQL
9th Edition
ISBN: 9781111527273
Author: Philip J. Pratt
Publisher: Course Technology Ptr
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Chapter 3, Problem 6TD
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Checking the contents of the table by using the “Select” statement:
Checking the content in “REP” table:
Query to view the contents in “REP” table.
Select * from REP;
When the above query is executed, the “REP” table gets displayed.
Checking the content in “CUSTOMER” table:
Query to view the contents in “CUSTOMER” table...
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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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- Insert the data into the tables you created in Problem 1.arrow_forwardAdd two columns to the EMPLOYEES table. One column, named EmpDate, contains the date of employment for each employee, and its default value should be the system date. The second column, named EndDate, contains employees date of termination.arrow_forwardAssuming that the CUSTOMER table contains a CUST_AGE attribute, write the query to update the values in that attribute. (Hint: Use the results of the previous query.)arrow_forward
- Write the SQL code that will restore the data to its original status: that is, the table should contain the data that existed before you made the changes in Problems 5 and 6.arrow_forwardWhat does it mean for two tables to be union compatible?arrow_forwardUsing the Bowlers and Bowler_Scores tables, list the BowlerID, bowler name, and raw score for each bowler who had the lowest raw score for their team. Do not list a single bowler more than once. If a single team has two bowlers with the same lowest score, do not list any bowlers from that team.arrow_forward
- Mr. Rohan has constructed a table called'student,' which contains information such as the student's roll number, name, class, and section. He is now perplexed as to how to establish the main key. So, how do you find the primary key column?arrow_forwardIn our dataset, each job has a predefined salary range. Expand on the previous query and explore this salary range per customer. The query should display the attributes as problem 1 but also include the name of their position, and salary ranges for each employee. Finally, add a column that calculates the difference between each employee’s current salary and the base (minimum) salary for their job. Renamed this last calculated field as “Pay_above_minimum”.arrow_forwardFor every order that has been received, display the order ID, the total dollar amount owed on that order (you’ll have to calculate this total from attributes in one or more tables; label this result TotalDue), and the amount received in payments on that order (assume that there is only one payment made on each order). To make this query a little simpler, you don’t have to include those orders for which no payment has yet been received. List the results in decreasing order of the difference between total due and amount paid.arrow_forward
- For every order that has been received, display the order ID, the total dollar amount owed on that order (you’ll have to calculate this total from attributes in one or more tables; label this result TotalDue), and the amount received in payments on that order (assume that there is only one payment made on each order). To make this query a little simpler, you don’t have to include those orders for which no payment has yet been received. List the results in decreasing order of the difference between total due and amount paid.arrow_forwardHow do you find rows in which a particular column contains a null value? Providean example of how you test the database for NULL values.arrow_forwardEmployees table—the data Open the Employees table in Datasheet View. You should now see the data currently in the Employees table, as in Figure 19.3. Scan the data to become familiar with the kind of data being stored. In this view, you would be able to add, delete, or modify data in the table. Click the small + sign beside the employee with ID 149. What do you see? Why do you see it? (Hint: think about the relationships between the tables.) Would you expect to see + signs in either of the other two tables?arrow_forward
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