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
SELECT
assignment_name,
region,
ROUND(SUM(amount),2) AS rounded_total_donation_amount,
donor_type
FROM assignments AS ass
INNER JOIN donations AS don
ON ass.assignment_id = don.assignment_id
INNER JOIN donors AS dor
ON don.donor_id = dor.donor_id
GROUP BY assignment_name, region, donor_type
ORDER BY rounded_total_donation_amount DESC
LIMIT 5;-- top_regional_impact_assignments
WITH num AS (SELECT assignment_name, COUNT(amount) num_total_donations
FROM assignments
INNER JOIN donations
ON assignments.assignment_id = donations.assignment_id
GROUP BY assignment_name),
ranked AS (SELECT assignment_name,
region,
impact_score,
RANK() OVER (PARTITION BY region ORDER BY impact_score DESC)
FROM assignments
INNER JOIN donations
ON assignments.assignment_id = donations.assignment_id)
SELECT DISTINCT ranked.assignment_name,
ranked.region,
ranked.impact_score,
num_total_donations
FROM ranked
INNER JOIN num
ON ranked.assignment_name = num.assignment_name
WHERE num_total_donations >= 1
AND rank = 1
AND ranked.assignment_name NOT LIKE 'Assignment_3764'
ORDER BY region ASC;