[MySQL][Practice] 돈을 벌기 위해 일을 합시다!

Table - sparta_employees

id	name	position	salary	hire_date
1	르탄이	개발자	30000	2022-05-01
2	배캠이	PM	40000	2021-09-25
3	구구이	파트장	35000	2023-06-01
4	이션이	팀장	50000	2021-07-09

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1.sparta_employees 테이블에서 모든 직원의 이름(name)과 직급(position)을 선택하는 쿼리를 작성해주세요.

select name,position
from sparta_employees

2.sparta_employees  테이블에서 중복 없이 모든 직급(position)을 선택하는 쿼리를 작성해주세요.

select distinct position
from sparta_employees

3.sparta_employees  테이블에서 연봉(salary)이 40000과 60000 사이인 직원들을 선택하는 쿼리를 작성해주세요.

select *
from sparta_employees
where salary between 40000 and 60000

4.sparta_employees  테이블에서 입사일(hire_date)이 2023년 1월 1일 이전인 모든 직원들을 선택하는 쿼리를 작성해주세요.

select *
from sparta_employees
where hire_date < '2023-01-01'

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