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This document contains 12 exercises to practice writing SQL queries on Oracle built-in tables. The exercises include finding statistics like average, maximum, minimum salaries of employees by department and job category. Other exercises ask to find the job group with highest total salary, maximum salaries by job after 1980, number of employees earning over $1200, number of people in each job, number of managers, difference between highest and lowest salaries, manager number and lowest paid employee
- Author
- Farhana Nazira
- Language
- EN