GoodThought NGO has been a catalyst for positive change, focusing its efforts on education, healthcare, and sustainable development to make a significant difference in communities worldwide. With this mission, GoodThought has orchestrated an array of assignments aimed at uplifting underprivileged populations and fostering long-term growth.
This project offers a hands-on opportunity to explore how data-driven insights can direct and enhance these humanitarian efforts. In this project, you'll engage with the GoodThought PostgreSQL database, which encapsulates detailed records of assignments, funding, impacts, and donor activities from 2010 to 2023. This comprehensive dataset includes:
Assignments: Details about each project, including its name, duration (start and end dates), budget, geographical region, and the impact score.Donations: Records of financial contributions, linked to specific donors and assignments, highlighting how financial support is allocated and utilized.Donors: Information on individuals and organizations that fund GoodThought’s projects, including donor types.
Refer to the below ERD diagram for a visual representation of the relationships between these data tables:
You will execute SQL queries to answer two questions, as listed in the instructions. Good luck!
-- highest_donation_assignments
WITH donation_totals AS(
SELECT donations.assignment_id,
donors.donor_type,
SUM(donations.amount) AS total_amount
FROM donations
LEFT JOIN donors ON donations.donor_id = donors.donor_id
GROUP BY donations.assignment_id, donors.donor_type
),
highest_donation_assignments AS(
SELECT
assignments.assignment_name,
assignments.region,
ROUND(SUM(donation_totals.total_amount),2) AS rounded_total_donation_amount,
donation_totals.donor_type
FROM donation_totals
LEFT JOIN assignments ON assignments.assignment_id = donation_totals.assignment_id
GROUP BY assignments.assignment_id,assignments.assignment_name,assignments.region,donation_totals.donor_type
)
SELECT *
FROM highest_donation_assignments
ORDER BY rounded_total_donation_amount DESC
LIMIT 5;-- top_regional_impact_assignments
WITH top_regional_impact AS(
SELECT assignments.assignment_name,assignments.region,assignments.impact_score,
SUM(donations.amount) AS num_total_donations,
ROW_NUMBER() OVER(PARTITION BY assignments.region
ORDER BY assignments.impact_score DESC) AS region_rank
FROM assignments
LEFT JOIN donations
ON assignments.assignment_id=donations.assignment_id
GROUP BY assignments.assignment_id,assignments.assignment_name,assignments.region,assignments.impact_score
)
SELECT assignment_name,
region,
impact_score,
num_total_donations
FROM top_regional_impact
WHERE region_rank = 1
ORDER BY region;