0 votes 0 votes give domain relation calculus expression works(person-name, company-name, salary) find the names of all employees who earn more than every employee of Small Bank Corporation Databases databases relational-calculus + – aditi19 asked Nov 4, 2018 aditi19 394 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes r1 <-----person-name (works) - r2 <---- (Πworks.person-name (works) Narural Join (works.salary ≤works2.salary ∧ works2.company-name = “Small Bank Corporation”) ρworks2(works))) r1-r2 Himanshu Kumar Gupta answered Jul 23, 2020 Himanshu Kumar Gupta comment Share Follow See all 0 reply Please log in or register to add a comment.