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Create a Student database and Retrieve the names of all students majoring in ‘CS'
Consider the following relational database: STUDENT (name, student#, class, major) COURSE (course name, course#, credit hours, department) SECTION (section identifier, course#, semester, year, instructor) GRADE_REPORT (student#, section identifier, grade) PREREQUISITE (course#, presequisite#) Specify the following queries in SQL on the above database schema.
(i) Retrieve the names of all students majoring in ‘CS' (Computer Science).
Query
SELECT NAME FROM STUDENT WHERE MAJOR = ‘CS' // Execute Select query to retrive database
ERD Diagram of Medical Recruitment Agency?
What are the objectives of query processing? Ans: The objectives of query processing is to transform a query written in a high level language into a accurate and efficien
Determine the language that needs a user to specify the data to be retrieved with no specifying exactly how to get it is Ans: Non-Procedural DML
why we fregment at all?
What is view in SQL? How is it defined? Any relation that is not part of the logical model, but is made visible to a user as a virtual relation is known as a view. We descri
What is OLTP (Online Transaction Processing)? In OLTP - online transaction processing systems relational database design use the discipline of data modeling and generally follo
Example - ALTER TABLE emp MODIFY (empno NUMBER (7));
What is a homogeneous distributed database? In homogeneous distributed databases, all sites have the same database management system software, are aware of one another, and agr
explain various steps uses in evaluation and maintenance of MIS.
Functional Dependency Consider a relation R that has 2 attributes A and B. The attribute B of the relation is functionally dependent on the attribute A if and only if for every
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