SQL 쿼리문 예제
-- 쿼리문의 구조 SELECT first_name , last_name FROM employees; -- SELECT employee_id , last_name , salary FROM employees WHERE employee_id = 100; -- SELECT * FROM employees WHERE employee_id = 100; -- 테이블 컬럼 확인 DESC employees; -- emp last_name이 'Austin', 'Chen'인 사원의 정보를 얻어보자. -- 출력 결과> 사번, last_name, job_id, salary SELECT employee_id , last_name , job_id , salary FROM employees WHERE last_name = 'Aust..