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Figuer:
CUSTOMER In table CUSTOMER, CID is the primary key (Customer ID) .
RENTALS In the table RENTALS, RTN provides the rental number (the primary key) , CID is the customer's unique id, PICKUP is the city where the car was picked up, and Return is the city where the car was returned.
RENTCOST RENTCOST 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) shown in table RENTALS. In a database used in reality, this table would be merged with the RENTALS table.
-(ACCESS) SELECT CNAME,DATE_OUT FROM CUSTOMER INNER JOIN RENTALS
ON CUSTOMER.CID = RENTALS.CID
WHERE AGE < 40 AND RTN IN
(SELECT RTN FROM RENTLENGTH
WHERE DAYS > 1)
The CNAMEs shown by the execution of this query are:
Desired Behaviour
A specific set of actions or reactions that an organization or individual aims to elicit from another party, often through reinforcement or incentives.
Reward
A benefit, often in the form of compensation, recognition, or appreciation, given to individuals for their performance or achievements.
Intermittent Reinforcement
A conditioning schedule in which rewards or punishments are given out at irregular intervals, making a behavior more resistant to extinction.
Continuous Reinforcement
A strategy in behavioral psychology involving the delivery of a reward after every desired action, intending to establish or strengthen behaviors.
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