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 donor_info AS (
SELECT
assignment_id,
donor_type,
ROUND(SUM(amount),2) AS rounded_total_donation_amount
FROM donations
JOIN donors
ON donations.donor_id = donors.donor_id
GROUP BY assignment_id, donor_type
)
SELECT
assignment_name,
region,
rounded_total_donation_amount,
donor_type
FROM assignments
JOIN donor_info
ON assignments.assignment_id = donor_info.assignment_id
ORDER BY rounded_total_donation_amount DESC
LIMIT 5
-- top_regional_impact_assignmentsdonations_num AS (
WITH num_don AS (
SELECT
assignment_id,
COUNT(*) AS num_total_donations
FROM donations
GROUP BY assignment_id),
ranks AS (
SELECT
assignment_id,
assignment_name,
region,
impact_score,
ROW_NUMBER() OVER (PARTITION BY region
ORDER BY impact_score DESC) AS row_num
FROM assignments)
SELECT
assignment_name,
region,
impact_score,
num_total_donations
FROM ranks
JOIN num_don
ON ranks.assignment_id = num_don.assignment_id
WHERE row_num = 1
ORDER BY region ASC