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); What type of database I/O operations will likely be used by the query? (See Table 11.3.)
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); What type of database I/O operations will likely be used by the query? (See Table 11.3.)
Database Systems: Design, Implementation, & Management
12th Edition
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Carlos Coronel, Steven Morris
Chapter11: Database Performance Tuning And Query Optimization
Section: Chapter Questions
Problem 19P
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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);
What type of database I/O operations will likely be used by the query? (See Table 11.3.)
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