Lab 1_solution_KyleDaly

Lab 1_solution_KyleDaly - end of the computer at 3 am. So...

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Week 1 Lab Kyle Daly DeVry CIS 336 Step3 Should a Null be allowed Yes, I would say that a null is permissible for the foreign key EmpNO in the Order table because a customer can purchase a product over the internet and pay for the transaction 24 hours a day and 7 days a week. Most of the time there is not going to be an employee working on the other
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Unformatted text preview: end of the computer at 3 am. So that is way the null should be allowed because it does not have a value at the time the order is placed with the customer. In step three the new order number is placed in the data base with all the correct values on 02/19/2000....
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This note was uploaded on 10/10/2011 for the course CIS339 NONE taught by Professor None during the Spring '10 term at DeVry Chicago.

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