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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 donation_summary AS 
	(SELECT 
	d.assignment_id, 
	dn.donor_type, 
	ROUND(SUM(d.amount), 2) AS rounded_total_donation_amount
FROM donations AS d
LEFT JOIN donors AS dn
ON d.donor_id = dn.donor_id
GROUP BY d.assignment_id, dn.donor_type)

SELECT a.assignment_name,
	   a.region,
	ds.rounded_total_donation_amount,
	ds.donor_type
FROM donation_summary AS ds 
LEFT JOIN assignments AS a
ON ds.assignment_id = a.assignment_id
ORDER BY ds.rounded_total_donation_amount DESC
LIMIT 5;
Spinner
DataFrameas
top_regional_impact_assignments
variable
-- top_regional_impact_assignments
WITH total_donations AS 
	(SELECT d.assignment_id, COUNT(*) AS num_total_donations
	FROM donations AS d
	GROUP BY d.assignment_id
	),

     total_impactscore AS (SELECT 
	    a.assignment_id,
	    a.assignment_name, 
		a.region, 
	    a.impact_score, 
		ROW_NUMBER() OVER(PARTITION BY a.region ORDER BY a.impact_score DESC) AS rank_impactscore
		FROM assignments AS a)

SELECT 
	ti.assignment_name,
	ti.region,
	ti.impact_score,
	td.num_total_donations
FROM total_impactscore AS ti
INNER JOIN total_donations AS td
ON ti.assignment_id = td.assignment_id
WHERE ti.rank_impactscore = 1
ORDER BY ti.region;