FROM SALESPERSON WHERE SPNUM= (SELECT SPNUM FROM CUSTOMER WHERE CUSTNUM=772): What is this subquery determining? A: Which salesperson number is associated with customer number 772 B: Which customer number is associated with 772 salesperson C: Which salesperson number is associated with 772 customers D: which customer number is associated with salesperson number 772

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
Problem 1PE
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26.In the given query, SPNAME is salesperson name,
SPNUM is salesperson number, and CUSTNUM is
customer number.
SELECT SPNAME
FROM SALESPERSON
WHERE SPNUM=
(SELECT SPNUM
FROM CUSTOMER
WHERE CUSTNUM=772):
What is this subquery determining?
A: Which salesperson number is associated with customer
number 772
B: Which customer number is associated with 772
salesperson
C: Which salesperson number is associated with 772
customers
D: which customer number is associated with salesperson
number 772
Transcribed Image Text:26.In the given query, SPNAME is salesperson name, SPNUM is salesperson number, and CUSTNUM is customer number. SELECT SPNAME FROM SALESPERSON WHERE SPNUM= (SELECT SPNUM FROM CUSTOMER WHERE CUSTNUM=772): What is this subquery determining? A: Which salesperson number is associated with customer number 772 B: Which customer number is associated with 772 salesperson C: Which salesperson number is associated with 772 customers D: which customer number is associated with salesperson number 772
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