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Problems are based on the ER model shown in Figure P11.7 and on the query shown after the figure. SELECT                  P_CODE, P_PRICE FROM                    PRODUCT WHERE                 P_PRICE >= (SELECT AVG(P_PRICE) FROM PRODUCT); Should you create an index? Why or why not?

Problems are based on the ER model shown in Figure P11.7 and on the query shown after the figure. SELECT                  P_CODE, P_PRICE FROM                    PRODUCT WHERE                 P_PRICE >= (SELECT AVG(P_PRICE) FROM PRODUCT); Should you create an index? Why or why not?

Database Systems: Design, Implementation, & Management
Database Systems: Design, Implementation, & Management
11th Edition
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Chapter12: Distributed Database Management Systems
Section: Chapter Questions
Problem 13RQ
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Problems are based on the ER model shown in Figure P11.7 and on the query shown after the figure.

SELECT                  P_CODE, P_PRICE

FROM                    PRODUCT

WHERE                 P_PRICE >= (SELECT AVG(P_PRICE) FROM PRODUCT);

Should you create an index? Why or why not?

 

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