مساعده في عمل select

1) what are the related books for each book: Book Name/Related Book Name

2)what are the totl cost for each customer order:customer Name/order name/order total cost

3) what are the customer comments on each book:Book Namw/Customer Name/Comment

4)what are the total cost for each customer order that have total cosmore than$100

Customer Name/ Order Number/Order tOtal Cost

5)Book report ordered by Authors Name:Book Name/Authors/Publisher/AvailableQuantites

6)what are the Book that are bought by customers who are younger than 18 years old

Customer Name/ Customer Date of Birth/Customer Age/Book Name