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Many-to-many: Entities in A and B are related with any number of entities from each other.
Example:
Taught_by Relationship among course and faculty.
One faculty member can be assigned to teach a lot of courses and one course may be taught by a lot of faculty members.
Relationship among book and author.
One author can explained a lot of books and one book can be written by more than one authors.
More about Relationships and Entities
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random file orgnization
how to prepare a data dictionary for online examination system for certified courses?
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Give the levels of data abstraction? There are three levels of Data Abstraction a) Physical level b) logical level c) view level
Example: Consider the following relations: ROLLNO NAME ADDRESS COURSE_ID 100 Ka
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