Suppose that relations R and S have n tuples and m tuples respectively. What is the minimum number of tuples that the results of the following expression can have? TL(R) - S, for some list of attributes L O A.n O B. n-m O C. max{n,m} O D. n*m O E. min{n,m} O F. m O G. n+m O H. 0

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
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Suppose that relations R and S have n tuples and m tuples respectively. What is the minimum number of tuples that the results of the following expression can have?
TL(R) – S, for some list of attributes L
A. n
B. n-m
C. max{n,m}
D. n*m
E. min{n,m}
F. m
G. n+m
H. 0
Transcribed Image Text:Suppose that relations R and S have n tuples and m tuples respectively. What is the minimum number of tuples that the results of the following expression can have? TL(R) – S, for some list of attributes L A. n B. n-m C. max{n,m} D. n*m E. min{n,m} F. m G. n+m H. 0
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