Query to get the list of departments with department (organization id)

SELECT hauft.organization_id,
              hauft.NAME
         FROM HR_ORG_UNIT_CLASSIFICATIONS_F houcf, 
              HR_ALL_ORGANIZATION_UNITS_F haouf, 
              HR_ORGANIZATION_UNITS_F_TL hauft 
        WHERE haouf.ORGANIZATION_ID = houcf.ORGANIZATION_ID 
          AND haouf.ORGANIZATION_ID = hauft.ORGANIZATION_ID 
          AND haouf.EFFECTIVE_START_DATE BETWEEN houcf.EFFECTIVE_START_DATE AND houcf.EFFECTIVE_END_DATE
          AND hauft.LANGUAGE = 'US'
          AND hauft.EFFECTIVE_START_DATE = haouf.EFFECTIVE_START_DATE 
          AND hauft.EFFECTIVE_END_DATE = haouf.EFFECTIVE_END_DATE 
          AND houcf.CLASSIFICATION_CODE = 'DEPARTMENT' 
          AND TRUNC(SYSDATE) BETWEEN hauft.effective_start_date AND hauft.effective_end_date

I hope this blog post was helpful for you. If you have any questions or feedback, please leave a comment below.