List and describe the different types of indexes, Database Management System

Question 1 Indexes are ocasionally defines on a single field of a file called an indexing field. List and describe the different types of indexes

Question 2 Consider a book is written by a particular author. And you have to explain to someone about the relationship that exists between the author and the book. Normally you can draw a diagram and show the relation. These diagrams are called entity-relationship diagram in which book is one entity, author is one entity, and the relationship that exists between the two entities is written. Likewise explain the various notations used to represent the ER diagram.

Question 3 Consider a banking database (select the tables and fields of your choice). Now apply all the operations of relational algebra and find the result.

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