1. What is the storage manager component that is responsible for fetching data from disk storage into main memory? And why it is considered a critical component?

2. What is the relation result of the natural join between these two relations?

3. Suppose you are working on a project for building a database for library management system. Your manager asked you to design the library Entity Relationship Model. Show us your proposed model? Consider the following hint:

Each publisher has a list of books

Each Member has a list of borrowed books.

* use MS format * answer all questions

Relation (a) Relation (b) 4 56 56 25 33 67 36 78 56 38 90 23 12 3466 4 56 86 25 67 34 36 56 89 38 23 34 12 66 67