The answer is installing antivirus software
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.
A driver is a piece of software that allows things such as a keyboard, mouse, hard drive, etc. connect to a computer. Normally found on the manufactures website, you can update drivers with advanced and modern technology. Or, if a device is really old you can download a driver to allow that device to connect to a PC.
A college meal plan allows students to PAY UPFRONT TO EAT A SPECIFIC NUMBER OF MEALS IN THE COLLEGE CAFETERIAS. Many colleges give students some degree of freedom when it comes to the choice of meal plans to sign up for. Students have to pay in advance for any meal they decide for.
