Answer:
1) Yes, Publisher relation should have a publisherID primary key.
2) NOT NULL and UNIQUE for the BookID, BranchID, CardNumber and name of the borrower in the Book, Book_Copies, Library_branch, and Borrower relations respectively. The DueDate field of the book_loan relation must be a time constraint. The BookID of the Book relation must be serial number for automatic addition and update of bookid across the database.
Explanation:
The Publisher relation should have primary key publisherID which should replace the publisherName in the Book relation to easily make a join query and attain a third-level database model.
Answer:
Form and reports are the documents which are used to create for include the information according to the particular requirements. These are the types of documents which include some extra information in the predefined information according the particular needs and requirements.
The following are the guidelines when developing forms and reports are:
- If the data or information is in the form of table then, use the query module for defining the particular relationship of table.
- Use the proper syntax and appropriate language to define the information in the forms and reports so, it become easy to the users or customers for access the information.
- During the form development, we can also provide the validation requirement and many toolbar buttons to make easy for users.
largest = int(input("Enter a number: "))
print("Largest: {}".format(largest))
i = 0
while i < 5:
num = int(input("Enter a number: "))
if num > largest:
largest = num
print("Largest: {}".format(largest))
i += 1
I hope this helps!
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