CUSTOMER RENTALS In the Table RENTALS, Rtn Provides the Rental Number (The

question 24

Multiple Choice

CUSTOMER
$$\begin{array} { | l | l | l | l | } \hline \text { Cname } & \text { Age } & \text { Resid\_City } & \text { BirthPlace } \\\hline \text { BLACK } & 40 & \text { ERIE } & \text { TAMPA } \\\hline \text { GREEN } & 25 & \text { CARY } & \text { ERIE } \\\hline \text { JONES } & 30 & \text { HEMET } & \text { TAMPA } \\\hline \text { MARTIN } & 35 & \text { HEMET } & \text { TAMPA } \\\hline \text { SIMON } & 22 & \text { ERIE } & \text { ERIE } \\\hline \text { VERNON } & 60 & \text { CARY } & \text { CARY } \\\hline\end{array}$$
RENTALS
$\begin{array}{|l|l|l|l|l|l|}\hline \text { Cname } & \text { Make } & \text { Date\_Out } & \text { Pickup } & \text { Return } & \text { Rtn } \\\hline \text { BLACK } & \text { FORD } & 10-\text { Oct-1994 } & \text { CARY } & \text { CARY } & 1 \\\hline \text { BLACK } & \text { GM } & 01-\text { Nov-1995 } & \text { TAMPA } & \text { CARY } & 2 \\\hline \text { BLACK } & \text { FORD } & 01-J a n-1995 & \text { ERIE } & \text { ERIE } & 3 \\\hline \text { GREEN } & \text { NISSAN } & 07-J u l-1994 & \text { TAMPA } & \text { TAMPA } & 4 \\\hline \text { JONES } & \text { FORD } & 01-J u l-1995 & \text { CARY } & \text { ERIE } & 5 \\\hline \text { JONES } & \text { GM } & 01-A u g-1995 & \text { ERIE } & \text { ERIE } & 6 \\\hline \text { MARTIN } & \text { FORD } & 01-A u g-1994 & \text { CARY } & \text { ERIE } & 7 \\\hline \text { SIMON } & \text { GM } & 01-S e p-1995 & \text { ERIE } & \text { CARY } & 8 \\\hline \text { WARP } & \text { TOYOTA } & 02-S e p-1995 & \text { RENO } & \text { RENO } & 9 \\\hline\end{array}$
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
$$\begin{array} { | l | l | } \hline \text { MAKE } & \text { COST } \\\hline \text { FORD } & 30 \\\hline \text { GM } & 40 \\\hline \text { NISSAN } & 30 \\\hline \text { TOYOTA } & 20 \\\hline \text { VOLVO } & 50 \\\hline\end{array}$$
In RENTCOST, COST shows the base cost of renting a given MAKE for one day.

CITYADJ
$$\begin{array} { | l | l | } \hline \text { CITY } & \text { FACTOR } \\\hline \text { CARY } & 1 \\\hline \text { ERIE } & 1.1 \\\hline \text { RENO } & 0.9 \\\hline \text { TAMPA } & 0.8 \\\hline\end{array}$$
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
$$\begin{array} { | l | l | } \hline \text { RTN } & \text { DAYS } \\\hline 1 & 1 \\\hline 2 & 3 \\\hline 3 & 2 \\\hline 4 & 2 \\\hline 5 & 4 \\\hline 6 & 2 \\\hline 7 & 3 \\\hline 8 & 1 \\\hline\end{array}$$
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 Resid_City,AVG(Age) AS Avgage
FROM CUSTOMER
GROUP BY Resid_City
Will produce the following number of rows:

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