Скачать или смотреть Tuple Relational Calculus (Example Queries)

DBMS: Tuple Relational Calculus (Example Queries)
Topics Discussed:
1. Tuple Relational Calculus, formulas with examples.
2. Free and bound variables in Relational Calculus.
3. Solved examples to find the ID, name, dept name, and salary for instructors whose salary is greater than $80,000.
4. Solved examples to find the instructor ID for each instructor with a salary greater than $80,000.
5. Solved examples to find the names of all instructors whose department is in the Watson building.
6. Solved examples to find the set of all courses taught in the Fall 2009 semester, the Spring 2010 semester, or both.
7. Solved examples to find only those course id values for courses that are offered in both the Fall 2009 and Spring 2010 semesters.
8. Solved examples to find all the courses taught in the Fall 2009 semester but not in the Spring 2010 semester.

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