Discuss the below:
Q: One of your team members are a little rusty on their SQL skills, but needed to create the SQL Select statements that would produce running summary files for reports on the following:
Customer volume by month
CustomerID, Month, Total shipments, Total weight
Driver performance by month
Driver ID, Month, Number of manifests on time, Number of manifests delivered late.
The team member sent you an e-mail with the following questions:
From where should he source the information for the design?
What difficulties would he have in writing the SQL statements for each of these tables?
Should any of these tables be created on an as-needed basis?
Do these summary tables violate the concept of table normalization?
Attachment:- sql skills.rar