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Convert the following ER - diagram (Entity Relationship Diagram) into a relational database (the primary keys are underlined):
Ans: The relational database schema for the following ER diagram is like this:
A (a1, b1, a2, a3)
B (b1, b2, b3, b4)
C (c1, c2)
D (b1, c1, r21)
Explain algorithm of ER To Relational Mapping ? ER-to-Relational Mapping Algorithm: 1) Step 1: Mapping of regular entity types: For each strong entity type E, form a relatio
What is an ERD?
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need to get answer for questions 3&4 on this page in part 1
What are the two approaches to store relations in distributed database? a) Replication b) Fragmentation
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The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
Describe multi key files
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