Ok, here I am providing you the Laboratory Manual on Database Applications Laboratory DBMS of RNS Institute of Technology, Visvesvaraya Technological University VTU.

RNS Institute of Technology DBMS Laboratory Manual

Subject Code: 10CSL57
I.A. Marks : 25
Hours/Week : 03
Exam Hours: 03
Total Hours : 42
Exam Marks: 50

1. Consider the following relations: Student (snum: integer, sname: string, major: string, level: string, age: integer) Class (name: string, meets at: string, room: string, fid: integer) Enrolled (snum: integer, cname: string) Faculty (fid: integer, fname: string, deptid: integer)

The meaning of these relations is straightforward; for example, Enrolled has one record per student-class pair such that the student is enrolled in the class. Level is a two character code with 4 different values (example: Junior: JR etc) Write the following queries in SQL. No duplicates should be printed in any of the answers.

i. Find the names of all Juniors (level = JR) who are enrolled in a class taught by Prof. Harshith
ii. Find the names of all classes that either meet in room R128 or have five or more Students enrolled.
iii. Find the names of all students who are enrolled in two classes that meet at the same time. iv. Find the names of faculty members who teach in every room in which some class is taught.
v. Find the names of faculty members for whom the combined enrollment of the courses that they teach is less than five.

2. The following relations keep track of airline flight information: Flights (no: integer, from: string, to: string, distance: integer, Departs: time, arrives: time, price: real) Aircraft (aid: integer, aname: string, cruisingrange: integer) Certified (eid: integer, aid: integer) Employees (eid: integer, ename: string, salary: integer)

Note that the Employees relation describes pilots and other kinds of employees as well; Every pilot is certified for some aircraft, and only pilots are certified to fly. Write each of the following queries in SQL:

i. Find the names of aircraft such that all pilots certified to operate them have salaries more than Rs.80, 000.

ii. For each pilot who is certified for more than three aircrafts, find the eid and the maximum cruisingrange of the aircraft for which she or he is certified.

iii. Find the names of pilots whose salary is less than the price of the cheapest route from Bengaluru to Frankfurt.

iv. For all aircraft with cruisingrange over 1000 Kms,. Find the name of the aircraft and the average salary of all pilots certified for this aircraft.

v. Find the names of pilots certified for some Boeing aircraft.

vi. Find the aids of all aircraft that can be used on routes from Bengaluru to New Delhi.

For complete details here is the attachment

RNS Institute of Technology DBMS Laboratory Manual


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RNS Institute of Technology
Dr.Vishnuvardhan Road, Rajarajeshwarinagar, Channasandra
Bengaluru, Karnataka 560098

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