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Consider the following schema: Student(id, name) Registration(id, code) Course(code, instructor) Write the following queries in the Relational Algebra. What are the code of all courses?
Consider the following schema:
Student(id, name)
Registration(id, code)
Course(code, instructor)
Write the following queries in the Relational Algebra.
- What are the code of all courses? (0.25 mark)
Answer:
- What are the id of students registered in IT403? (0.25 mark)
Answer:
- What are the names of students registered in IT403? (0.5 mark)
Answer:
- What are the names of students registered in both IT403 and IT404? (1 mark)
Answer:
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Next Generation Databases NoSQLand Big Data
Authors: Guy Harrison
1st Edition
1484213300, 978-1484213308
