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प्रश्न
Write the outputs of the SQL queries based on the relations Teacher and Placement given below:
Table: Teacher
| T_ID | Name | Age | Department | Date_of_join | Salary | Gender |
| 1 | Arunan | 34 | Computer Sc | 2019-01-10 | 12000 | M |
| 2 | Saman | 31 | History | 2017-03-24 | 20000 | F |
| 3 | Randeep | 32 | Mathematics | 2020-12-12 | 30000 | M |
| 4 | Samira | 35 | History | 2018-07-01 | 40000 | F |
| 5 | Raman | 42 | Mathematics | 2021-09-05 | 25000 | M |
| 6 | Shyam | 50 | History | 2019-06-27 | 30000 | M |
| 7 | Shiv | 44 | Computer Sc | 2019-02-25 | 21000 | M |
| 8 | Shalakha | 33 | Mathematics | 2018-07-31 | 20000 | F |
Table: Placement
| P_ID | Department | Place |
| 1 | History | Ahmedabad |
| 2 | Mathematics | Jaipur |
| 3 | Computer Sc | Nagpur |
- SELECT Department, avg(salary) FROM Teacher GROUP BY Department;
- SELECT MAX(Date_of_Join), MIN(Date_of_Join) FROM Teacher;
- SELECT Name, Salary, T.Department, Place FROM Teacher T, Placement P WHERE T.Department = P.Department AND Salary>20000;
- SELECT Name, Place FROM Teacher T, Placement P WHERE Gender = ’F’ AND T.Department = P.Department;
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उत्तर
- SELECT Department, avg(salary) FROM Teacher GROUP BY Department;
Department Avg(Salary) Computer Sc 16500.00 History 30000.00 Mathematics 25000.00 - SELECT MAX(Date_of_Join), MIN(Date_of_Join) FROM Teacher;
Max(Date_of_Join) Min(Date_of_Join) 2021-09-05 2017-03-04 - SELECT Name, Salary, T.Department, Place FROM Teacher T, Placement P WHERE T.Department = P.Department AND Salary>20000;
Name Salary Department Place Randeep 30000 Mathematics Jaipur Samira 40000 History Ahmedabad Raman 25000 Mathematics Jaipur Shyam 30000 History Ahmedabad Shiv 21000 Computer Sc Nagpur - SELECT Name, Place FROM Teacher T, Placement P WHERE Gender = 'F' AND T.Department = P.Department;
Name Place Samira Ahmedabad Suman Ahmedabad Shalaka Jaipur
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