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Consider the relation PERSON. If you want to display details of persons having age less than or equal to 30 than the select operation will be used as follows: σ AGE The resu
Section A: Use the following tables to create a database called College. Use SQL commands. Student stuid(primary) lastName firstName
Explain three main attributes of data.
what is relationship inheritance and attribute inheritance
Which is another name for weak entity? Child is another name of weak entity.
A Data Model in software engineering is an abstract model that organizes and documents the business data for interaction between team members and is used as a plan for creating
Explain the database Planning Project ?
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.
Define the Immediate Update The immediate update methods may apply changes to the database on disk before the transaction arrives a successful conclusion. Though, these change
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