Beginning SQL

Chapter 11
This SQL adds formats (data) to the format table:
INSERT INTO [Format]([Format])
VALUES(‘VHS’)
INSERT INTO [Format]([Format])
VALUES(‘Beta’)
INSERT INTO [Format]([Format])
VALUES(‘DVD’)
The primary key of this table is an identity, which means it automatically creates a number for the key
(1, 2, and 3). Thus, 1, 2, and 3 are used as the foreign key in the next table.
This SQL adds data to the Inventory table:
INSERT INTO Inventory(FilmId, FormatId, CheckedOut)
VALUES(1,1,’N’)
INSERT INTO Inventory(FilmId, FormatId, CheckedOut)
VALUES(1,2,’N’)
INSERT INTO Inventory(FilmId, FormatId, CheckedOut)
VALUES(2,1,’N’)
INSERT INTO Inventory(FilmId, FormatId, CheckedOut)
VALUES(2,2,’N’)
INSERT INTO Inventory(FilmId, FormatId, CheckedOut)
VALUES(2,3,’N’)
INSERT INTO Inventory(FilmId, FormatId, CheckedOut)
VALUES(3,2,’N’)
INSERT INTO Inventory(FilmId, FormatId, CheckedOut)
VALUES(4,2,’N’)
INSERT INTO Inventory(FilmId, FormatId, CheckedOut)
VALUES(4,3,’N’)
INSERT INTO Inventory(FilmId, FormatId, CheckedOut)
VALUES(5,2,’N’)
INSERT INTO Inventory(FilmId, FormatId, CheckedOut)
VALUES(5,3,’N’)
The process of renting movies consists of running a query to find out what is available, selecting a specific
inventory item and marking it as rented, and building a new record in the Rentals table with the
member ID, the inventory ID, and the date rented.
Try It Out Renting Movies without Transactions
1. Select all available inventory records so that you can pick a movie:
304
SELECT Inventory.InventoryId, Films.FilmName, Films.PlotSummary, Format.Format
FROM (Inventory
INNER JOIN Films ON Inventory.FilmId = Films.FilmId)
INNER JOIN Format ON Inventory.FormatId = Format.FormatId
WHERE (((Inventory.CheckedOut)= ‘N’));
2. Select a specific movie and mark it as rented:
UPDATE Inventory
SET Inventory.CheckedOut = ‘Y’
WHERE (((Inventory.InventoryId)=7));