Write an SQL query that retrieves all pairs of suppliers who supply the same product, along with
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Write an SQL query that retrieves all pairs of suppliers who supply the same product, along with their product purchase price if applicable.
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Related Book For
Principles Of Database Management The Practical Guide To Storing Managing And Analyzing Big And Small Data
ISBN: 9781107186125
1st Edition
Authors: Wilfried Lemahieu, Seppe Vanden Broucke, Bart Baesens
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