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CUSTOMER
RENTALS
In the table RENTALS, Rtn provides the rental number (the primary key., Cname refers to the Cname in Customer, Pickup is the city where the car was picked up, and Return is the city where the car was returned.
RENTCOST
In RENTCOST, COST shows the base cost of renting a given MAKE for one day.
CITYADJ
If the return city of table RENTALS is the one listed in table CITYADJ, the cost of the rental is multiplied by FACTOR and by DAYS shown in table RENTLENGTH below.
RENTLENGTH
RENTLENGTH shows the number of DAYS for the rental number (RTN) of the table RENTALS (this table exists for the sake of testing SQL. Normally, the data here should be part of table RENTALS.
-The execution of the query SELECT Cname,COUNT (Make) AS COUNT1,
COUNT (DISTINCT Make) AS COUNT2
FROM RENTALS
GROUP BY Cname
Will produce the following number of columns:
Gastrocnemius
A major muscle in the calf of the leg, involved in walking, running, and jumping.
Soleus
A powerful muscle in the calf of the leg that is involved in standing and walking, lying beneath the gastrocnemius muscle.
Sternocleidomastoid
The sternocleidomastoid is a muscle in the neck that runs from the sternum and clavicle to the mastoid process of the temporal bone, involved in head movement.
Orbicularis Oculi
A circular muscle that surrounds the eyelid, allowing it to close or blink.
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