You can make a hierarchical directory structure under /root that
consists of one directory containing subdirectories by using cd and
mkdir
the mkdir command created the directories while the cd command changes which directory you're currently in
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.
Open your browser and go to localhost/PHPMyAdmin or click “Admin” in XAMPP UI. Now click Edit privileges and go to Change Admin password, type your password there and save it. Remember this password as it will be used to connect to your Database.
hope this helps!
