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SQL 문법 _ 오라클 9i introduction 2장 문제
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SQL
oracle 9i 라고 기본 활용서가 있는데 거기에 있는 2장 문제를 풀어보쟈~~ select last_name, salary from employees where salary >= 12000; select last_name, department_id from employees where EMPLOYEE_ID = 176; select last_name, salary from employees where salary >5000 or salary