Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Hello,
I am having a problem with this question. I wrote to progam and it works. The only thing is that is not working with the checks. I am not sure why the checks are wrong.
Can you help?
Do I need to add or delete anything?
Thank you!
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