Answer:
IT security is a set of cyber security strategies that prevents unauthorized access to organizational assets such as computers, networks, and data.
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.
its not simple nothing never is deleted from online posts or photos
<span>The second statement is the best description. If the original file is moved, hyperlinks will still take you to that file's page address, but the file will no longer be there to display. And embedded material won't be able to function.</span>
