calinconstantinov / GGCD

Dataset for Neo4j Global Graph Celebration Day

Neo4j Global Graph Celebration Day

Run these queries on the Global Graph Celebration Day attendee graph: https://globalgraphcelebrationday.com/

1. Find all Events
   MATCH (e:Event)
   RETURN e

2. Find all Events, order by Country
   MATCH (e:Event)
   RETURN e.Country, e.City
   ORDER BY e.Country ASC

3. Find all persons attending in Romania
   MATCH (p:Person)-[:ATTENDING]->(e:Event)
   WHERE e.Country = 'Romania'
   RETURN p, e

4. Find the Events with most Persons attending
   MATCH (p:Person)-[:ATTENDING]->(e:Event)
   WITH e, count(p) as participants
   ORDER BY count(p) DESC
   RETURN e.name, e.Country, e.City, e.Description, participants

5. Find the hobbies of persons attending in Romania
   MATCH (p:Person)-[:ATTENDING]->(e:Event)
   WHERE e.Country = 'Romania'
   WITH p
   MATCH (p)-[:ENJOYS]->(h:Hobby)
   RETURN p, h

6. Optionally find the Hobbies, Tools and Usecases for the Persons atteding in Romania
   MATCH (p:Person)-[:ATTENDING]->(e:Event)
   WHERE e.Country = 'Romania'
   WITH p
   OPTIONAL MATCH (p)-[:ENJOYS]->(h:Hobby)
   OPTIONAL MATCH (p)-[:USES]->(t:Tool)
   OPTIONAL MATCH (p)-[:INTERESTED_IN]->(u:Usecase)
   RETURN p, h, t, u

7. The are multiple entries for Calin. Find all data for Calin, only returning the first match
   MATCH (p:Person)-[:ATTENDING]->(e:Event)
   WHERE e.Country = 'Romania' and p.name = "Calin"
   WITH p
   LIMIT 1
   OPTIONAL MATCH (p)-[:ENJOYS]->(h:Hobby)
   OPTIONAL MATCH (p)-[:USES]->(t:Tool)
   OPTIONAL MATCH (p)-[:INTERESTED_IN]->(u:Usecase)
   RETURN p, h, t, u

8. Find the most popular Usecases for Persons attending in Romania
   MATCH (p:Person)-[:ATTENDING]->(e:Event)
   WHERE e.Country = 'Romania'
   WITH p
   MATCH (p)-[:INTERESTED_IN]->(u:Usecase)
   RETURN u.name as usecase, count(p) as peopleInterested
   ORDER BY count(p) DESC

9. Use the trim() function for grouping duplicate Usecases
   MATCH (p:Person)-[:ATTENDING]->(e:Event)
   WHERE e.Country = 'Romania'
   WITH p
   MATCH (p)-[:INTERESTED_IN]->(u:Usecase)
   RETURN trim(u.name) as usecase, count(p) as peopleInterested
   ORDER BY count(p) DESC

10. Find the most similar to Calin Persons on the planet
    MATCH (p:Person)-[:ATTENDING]->(e:Event)
    WHERE e.Country = 'Romania' and p.name = "Calin"
    WITH p
    LIMIT 1
    MATCH (p)-[:ENJOYS]->(h:Hobby)
    WITH p, h
    MATCH (s:Person)-[:ENJOYS]->(h)
    WHERE s.name <> "Calin"
    RETURN s.name, s.id, count(h) as commonHobies
    ORDER BY count(h) DESC
    LIMIT 10