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Define an abstraction by which relationships are treated as higher level entities
Ans: Aggregation.
It is an abstraction by which relationships are treated as higher level entities Aggregation. (In ER diagram, aggregation is utilized to denote a relationship as an entity set.)
What are the various properties of Relational tables? Relational tables have 6 properties: 1. Each row is unique. 2. Column values are of the same kind. 3. Values are
what is bogus empowerment. And what is genuine empowerment
Given the following relations Vehicle (Reg_no, make, colour) Person(eno, name, address) Owner(eno, reg_no) Write expressions in the relational algebra to answer the following
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Submit the SQL Statements necessary to create your database according to the following guidelines: Your SQL statements should exactly mirror your ERD. All primary keys,
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