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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!

Spinner
DataFrameas
highest_donation_assignments
variable
-- highest_donation_assignments
WITH DD AS(
SELECT
	ROUND(SUM(amount), 2) AS rounded_total_donation_amount,
	don.donor_type,
	assignment_id
FROM
	donations
INNER JOIN donors AS don
ON don.donor_id = donations.donor_id
GROUP BY don.donor_type, assignment_id
)
SELECT 
	assignment_name,
	region,
	dd.rounded_total_donation_amount,
	dd.donor_type
FROM 
	assignments
JOIN DD AS dd
ON dd.assignment_id = assignments.assignment_id
ORDER BY dd.rounded_total_donation_amount DESC
LIMIT 5;
Spinner
DataFrameas
top_regional_impact_assignments
variable
-- top_regional_impact_assignments
WITH NUMB_DONATIONS AS (
SELECT
	assignment_name,
	COUNT(*) as num_total_donations
FROM
	assignments
INNER JOIN donations AS donat
ON donat.assignment_id = assignments.assignment_id
GROUP BY assignment_name),
RANKING AS (
SELECT
	region,
	nd.assignment_name,
	nd.num_total_donations,
	impact_score,
	ROW_NUMBER() OVER(PARTITION BY region ORDER BY impact_score DESC) AS impact_rank
FROM
	assignments
INNER JOIN NUMB_DONATIONS AS nd
ON nd.assignment_name = assignments.assignment_name
WHERE nd.num_total_donations > 0)
SELECT 
	assignment_name,
	region,
	impact_score,
	num_total_donations
FROM 
	RANKING
WHERE impact_rank = 1;