Find the first name and last name and department id for those employees who earn such amount of salary which is the smallest salary of any of the departments.
SELECT first_name, last_name, department_id FROM employees WHERE salary IN (SELECT MIN(salary) FROM employees GROUP BY department_id)
``` yaml
employees: # name of dataframe
- EMPLOYEE_ID:
    dtype: int64
    sample_values: 100, 101, 102
- FIRST_NAME:
    dtype: string
    sample_values: Steven, Neena, Lex
- LAST_NAME:
    dtype: string
    sample_values: King, Kochhar, De Haan
- EMAIL:
    dtype: string
    sample_values: SKING, NKOCHHAR, LDEHAAN
- PHONE_NUMBER:
    dtype: string
    sample_values: 515.123.4567, 515.123.4568, 515.123.4569
- HIRE_DATE:
    dtype: datetime
    sample_values: 1987-06-17, 1987-06-18, 1987-06-19
- JOB_ID:
    dtype: string
    sample_values: AD_PRES, AD_VP, AD_VP
- SALARY:
    dtype: int64
    sample_values: 24000, 17000, 17000
- COMMISSION_PCT:
    dtype: float64
    sample_values: 0.0, 0.0, 0.0
- MANAGER_ID:
    dtype: int64
    sample_values: 0, 100, 100
- DEPARTMENT_ID:
    dtype: int64
    sample_values: 90, 90, 90

```
FIRST_NAME,LAST_NAME,DEPARTMENT_ID
Neena,Kochhar,90
Lex,De Haan,90
Bruce,Ernst,60
Diana,Lorentz,60
Luis,Popp,100
Karen,Colmenares,30
Shanta,Vollman,50
James,Marlow,50
TJ,Olson,50
Joshua,Patel,50
Peter,Vargas,50
Peter,Tucker,80
Oliver,Tuvault,80
Janette,King,80
Sarath,Sewall,80
Harrison,Bloom,80
Sundita,Kumar,80
Kimberely,Grant,0
Martha,Sullivan,50
Nandita,Sarchand,50
Randall,Perkins,50
Jennifer,Whalen,10
Pat,Fay,20
Susan,Mavris,40
Hermann,Baer,70
William,Gietz,110
