Database System Concepts
7th Edition
ISBN: 9789332901384
Author: Henry F. Korth & S. Sudarshan Abraham Silberschatz
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 5, Problem 11PE
Explanation of Solution
SQL statement:
(select color, size, sum(number)
from sales
groupby color, size
)
union
(select color, ’all’, sum(number)
from sales
groupby color
)
union
(select ’all’, size, sum(number)
from sales
...
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Database System Concepts
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