Problems are based on the following query: SELECT P_CODE, P_QOH*P_PRICE FROM PRODUCT WHERE P_QOH*P_PRICE > (SELECT AVG(P_QOH*P_PRICE) FROM PRODUCT); Should you create an index? If so, what would the index column(s) be, and why should you create the index?
Problems are based on the following query: SELECT P_CODE, P_QOH*P_PRICE FROM PRODUCT WHERE P_QOH*P_PRICE > (SELECT AVG(P_QOH*P_PRICE) FROM PRODUCT); Should you create an index? If so, what would the index column(s) be, and why should you create the index?
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
Chapter11: Database Performance Tuning And Query Optimization
Section: Chapter Questions
Problem 26P: Problems 25 and 26 are based on the following query: SELECT P_CODE, P_DESCRIPT, P_QOH, P_PRICE,...
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Problems are based on the following query:
SELECT P_CODE, P_QOH*P_PRICE
FROM PRODUCT
WHERE P_QOH*P_PRICE > (SELECT AVG(P_QOH*P_PRICE) FROM PRODUCT);
Should you create an index? If so, what would the index column(s) be, and why should you create the index?
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