engineering recuitment RPSC Programmer Mock Test 2024 DBMS Query Language Relational Model

How to retrieve data from relation ‘Professor’ where department name is ‘Mathematics’ and salary is greater than ’65,000’?

1

σ_{dept_name = “Mathematics”}_{⋀ salary>65000} (Professor)

2

σ_{“Mathematics”}_{⋀ salary>65000} (Professor)

3

σ_{dept_name = “Mathematics”}_{and salary>65000} (Professor)

4

σ_salary>65000 (Professor) _⋀_{dept_name = “Mathematics”}

5

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