21. Challenge 9
How to calculate this value?
1. Invoice amount – net_amount + tax
2. Order quantity?
– Quantity ordered
– Quantity cancelled
– Quantity shipped
– Quantity received
3. Order number (FK/19/01044/D)?
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34. Challenge 14
Can I reuse this view?
1. What does it return?
2. What is it used for?
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35. Solution
1. Provide descriptions
2. Assign module to indicate use – old and new
3. Assign owner
4. Indicate uniqueness with manual keys
(PK/UK)
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36. Challenge 15
Can modify this view?
1. What is it used for?
2. Who is the owner?
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