1.
Using data from the Premiere Products database, define a view named ToplevelCust. It consists
of the number, name, address, balance, and credit limit of all customers with credit limits that
are greater than or equal to $10,000. Using SOL, create the view definition for ToplevelCust
(hint: use CREATE VIEW ToplevelCust AS statement)
2.
Write an SOL query to retrieve the number and name of all customers in the ToplevelCust view
with balances that exceed their credit limits.
3.
Display all the data in the ToplevelCust view.
4.
Define a view named PartOrder. lt consists of the part number, description, price, order
number, order date, number ordered, and quoted price for all order lines currently on file.
Using SOL, write the view definition for PartOrder. (Hint: you need to use three tables: Part,
OrderLine, Orders).
5.
Display all the data in the PartOrder view.
SQL result
Host: localhost3306
Database: wagnercs_Premiere
Generation Time: Nov 11, 2015 at 02:06 PM
Generated by: phpMyAdmin 4.0.10.7 / MySQL 5.6.27
SQL query: SELECT * FROM `PartOrder` LIMIT 0, 30 ;
Rows: 30
PartNum Description Price OrderNum NumOrdered QuotedPrice OrderDate
AT94
Iron
24.95 21608
11
21.95
2013-10-20
AT94
Iron
24.95 21608
11
21.95
2013-10-20
AT94
Iron
24.95 21608
11
21.95
2013-10-21
AT94
Iron
24.95 21608
11
21.95
2013-10-21
AT94
Iron
24.95 21608
11
21.95
2013-10-23
AT94
Iron
24.95 21608
11
21.95
2013-10-23
AT94
Iron
24.95 21608
11
21.95
2013-10-23
AT94
Iron
24.95 21610
1
495.00
2013-10-20
AT94
Iron
24.95 21610
1
495.00
2013-10-20
AT94
Iron
24.95 21610
1
495.00
2013-10-21
AT94
Iron
24.95 21610
1
495.00
2013-10-21
AT94
Iron
24.95 21610
1
495.00
2013-10-23
AT94
Iron
24.95 21610
1
495.00
2013-10-23
AT94
Iron
24.95 21610
1
495.00
2013-10-23
AT94
Iron
24.95 21610
1
399.99
2013-10-20
AT94
Iron
24.95 21610
1
399.99
2013-10-20
AT94
Iron
24.95 21610
1
399.99
2013-10-21
AT94
Iron
24.95 21610
1
399.99
2013-10-21
AT94
Iron
24.95 21610
1
399.99
2013-10-23
AT94
Iron
24.95 21610
1
399.99
2013-10-23
AT94
Iron
24.95 21610
1
399.99
2013-10-23
AT94
Iron
24.95 21613
4
329.95
2013-10-20
AT94
Iron
24.95 21613
4
329.95
2013-10-20
AT94
Iron
24.95 21613
4
329.95
2013-10-21
AT94
Iron
24.95 21613
4
329.95
2013-10-21
PartNum Description Price OrderNum NumOrdered QuotedPrice OrderDate
AT94
Iron
24.95 21613
4
329.95
2013-10-23
AT94
Iron
24.95 21613
4
329.95
2013-10-23
AT94
Iron
24.95 21613
4
329.95
2013-10-23
AT94
Iron
24.95 21614
2
595.00
2013-10-20
AT94
Iron
24.95 21614
2
595.00
2013-10-20
6.
Write an SOL query to retrieve the part number, description, order number, and quoted price
for all orders in the PartOrder view for parts with quoted prices that exceed $100.
SQL result
Host: localhost3306
Database: wagnercs_Premiere
Generation Time: Nov 11, 2015 at 02:12 PM
Generated by: phpMyAdmin 4.0.10.7 / MySQL 5.6.27
SQL query: SELECT PartNum, Description, OrderNum, QuotedPrice FROM
PartOrder WHERE QuotedPrice >"100" LIMIT 0, 30 ;
Rows: 30
This table does not contain a unique column. Grid edit, checkbox, Edit, Copy
and Delete features are not available.
PartNum Description OrderNum QuotedPrice
AT94
Iron
21610
495.00
AT94
Iron
21610
495.00
PartNum Description OrderNum QuotedPrice
AT94
Iron
21610
495.00
AT94
Iron
21610
495.00
AT94
Iron
21610
495.00
AT94
Iron
21610
495.00
AT94
Iron
21610
495.00
AT94
Iron
21610
399.99
AT94
Iron
21610
399.99
AT94
Iron
21610
399.99
AT94
Iron
21610
399.99
AT94
Iron
21610
399.99
AT94
Iron
21610
399.99
AT94
Iron
21610
399.99
AT94
Iron
21613
329.95
AT94
Iron
21613
329.95
AT94
Iron
21613
329.95
AT94
Iron
21613
329.95
AT94
Iron
21613
329.95
AT94
Iron
21613
329.95
AT94
Iron
21613
329.95
AT94
Iron
21614
595.00
AT94
Iron
21614
595.00
AT94
Iron
21614
595.00
AT94
Iron
21614
595.00
AT94
Iron
21614
595.00
AT94
Iron
21614
595.00
AT94
Iron
21614
595.00
AT94
Iron
21617
794.95
AT94
Iron
21617
794.95
7.
Create a view named OrdTot. It consists of the order number and order total for each order
currently on file. (Hint: the order total is the sum of the number ordered multiplied by the
quoted price on each order line for each order, SUM(NumOrdered * QuotedPrice).
8.
Display all the data in OrdTot the view:
9.
Create an index named Partlndex1 on the PartNum field in the OrderLine table.
10. Create an index named Partlndex2 on the Warehouse field in the Part table.
11. Create an index named Partlndex3 on the Warehouse and Class fields in the Part table.
12. Create an index named Partlndex4 on the Warehouse and On Hand fields in the Part table and
list units on hand in descending order.
13. Assume the Part table has been created but there are no integrity constraints. Create the
necessary integrity constraint to ensure that the only allowable values for the Class field are AP,
HW, and SG. Ensure that the PartNum field is the primary key and that the PartNum field in the
OrderLine table is a foreign key that must match the primary key of the Part table.
NOTE: After 2 hours of messing with this code, I had no alternative but to do each one
individually to get it to do what the problem asks.
14. Add a field named Allocation to the Part table. The allocation is a number representing the
number of units of each part that have been allocated to each customer. Set all values of
Allocation to zero. Calculate the number of units of part number KV29 currently on order.
Change the value of Allocation for part number KV29 to this number. Display all the data in the
Part table.
This returned the correct calculation, but all other values went to NULL! So I had to run this to get it
back to “0”:
Final:
15. Increase the length of the Warehouse field in the Part table to two characters. Change the
warehouse number for warehouse 1 to 1a. Display all the data in the Part table.
16. What command would delete the Part table from the Premiere Products database? (Do not
delete the Part table.)
DROP TABLE Part;
17. By analogy of examples in the chapter 4, write a stored procedure that will change the price of a
part with a given part number.
DELIMITER //
CREATE PROCEDURE ChangePrice
(PNum CHAR (4), Prc DECIMAL (6,2))
BEGIN
UPDATE Part
SET Price=Prc
WHERE PartNum=PNum ;
END //
DELIMITER;
How would you use this stored procedure to change the price of part AT94 to $26.95?
DELIMITER //
CREATE PROCEDURE ChangePriceAT94
(PNum CHAR (4), Prc DECIMAL (6,2))
BEGIN
UPDATE Part
SET Price=Prc
WHERE PartNum=PNum ;
CASE PartNum
WHEN AT94 THEN
INSERT INTO Prc VALUES (26.95)
END //
DELIMITER;
NOTE: I tried on this one. I give up. Sorry.
18. By analogy of examples in the Concepts of Database Management - Chap. 4, write the
code for the following triggers following the style shown in the text:
a.
When adding a customer, add the customer's balance times the sales rep's
commission rate to the commission for the corresponding sales rep.
DELIMITER $$
CREATE TRIGGER new_customer_add
AFTER INSERT ON Customer
FOR EACH ROW
BEGIN
UPDATE Rep
SET Commission = Commission+(Customer.Balance*Rate)
WHERE Customer.Balance=New.Balance
;
END$$
DELIMITER ;
b.
When updating a customer, add the difference between the new balance and the old
balance multiplied by the sales rep's commission rate to the commission for the
corresponding sales rep.
DELIMITER $$
CREATE TRIGGER customer_update
AFTER UPDATE ON Customer
FOR EACH ROW
BEGIN
UPDATE Rep
SET Commission = Commission + (New.Balance * Rate) - (Old.Balance * Rate)
WHERE Customer.Balance=New.Balance
;
END$$
DELIMITER ;
c.
When deleting a customer, subtract the balance multiplied by the sales rep's
commission rate from the commission for the corresponding sales rep.
DELIMITER $$
CREATE TRIGGER customer_delete
AFTER DELETE ON Customer
FOR EACH ROW
BEGIN
UPDATE Rep
SET Commission = Commission - (Old.Balance * Rate)
WHERE Customer.Balance=Old.Balance
;
END$$
DELIMITER ;