Problems are based on the following query: SELECT                                  CUS_CODE, MAX(LINE_UNITS*LINE_PRICE) FROM                                    CUSTOMER NATURAL JOIN INVOICE NATURAL JOIN LINE WHERE                                 CUS_AREACODE = '615' GROUP BY                           CUS_CODE; Assuming that you generate 15,000 invoices per month, what recommendation would you give the designer about the use of derived attributes?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Problems are based on the following query:

SELECT                                  CUS_CODE, MAX(LINE_UNITS*LINE_PRICE)

FROM                                    CUSTOMER NATURAL JOIN INVOICE NATURAL JOIN LINE

WHERE                                 CUS_AREACODE = '615'

GROUP BY                           CUS_CODE;

Assuming that you generate 15,000 invoices per month, what recommendation would you give the designer about the use of derived attributes?

 

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