question 54
Multiple Choice
Figuer:
CUSTOMER (primary key = CID)
CNAME is NOT NULL CID 102030405060 CNAME BLACK GREEN JONES MARTIN SIMON VERNON AGE 402530352260 RESID_CITY SD SD La Mesa LA Pomona Poway Cregion SD SD SD LA LA SD RENTALS (primary key = RTN)
CID is a foreign key referencing CUSTOMER
CID is NOT NULL
MAKE is NOT NULL
MAKE is a foreign key referencing RENTCOST CID 101010203030405060 MAKE FORD GM FORD NISSAN FORD GM FORD GM NISSAN DATE_OUT 10− Oct-00 01−-Jan-01 01− Feb-01 07−Jul−0001−Jul−0001−-Dec-00 01− Aug-00 01− Sep-00 02-Jan-01 PICKUP SD SD LA SD SD SD LA LA SD RETURN SD LA SD SD SD LA SD LA RTN 123456789 RENTCOST
MAKE is the primary key MAKE FORD GM NISSAN TOYOTA VOLVO COST 3040302050 (Access) View1:
SELECT RTN, MAKE, PICKUP, RENTALS.CID,
CUSTOMER.CID, CNAME, AGE, Cregion
FROM CUSTOMER INNER JOIN RENTALS
ON CUSTOMER.CID = RENTALS.CID
(Access) View2:
SELECT RTN, MAKE, PICKUP, RENTALS.CID,
CNAME, AGE, Cregion
FROM CUSTOMER INNER JOIN RENTALS
ON CUSTOMER.CID = RENTALS.CID
(Access) View3:
SELECT RTN, RENTALS.MAKE, PICKUP, RENTALS.CID,
CNAME, AGE, Cregion, COST
FROM (CUSTOMER INNER JOIN RENTALS
ON CUSTOMER.CID = RENTALS.CID.
INNER JOIN RENTCOST
ON RENTALS.MAKE = RENTCOST.MAKE
-(Access) INSERT INTO View1 (RTN,MAKE,PICKUP,RENTALS.CID.
VALUES (10,'GM','SD',10)
Which of the following is not true?
Definitions:
Tax
A mandatory monetary fee or different kind of tax enforced on a taxpayer by a government entity.
Supply
The aggregate supply of a distinct item or service offered to purchasers.
Cloth
A material made from fibers, woven or knitted together, used to make garments and other items.
Severe Drought
An extended period of exceptionally low rainfall, leading to a shortage of water.