cancel
Showing results for 
Search instead for 
Did you mean: 

Head's Up! These forums are read-only. All users and content have migrated. Please join us at community.neo4j.com.

How to calculate and display author with most number of years publication

Here's my query and below that is returned data

MATCH (n:citations)-[:WROTE_BY]->(a:authors) with n,a,count(a.name) as c where a.name IS NOT NULL RETURN a.name,n.year order by a.name;

| "Victor Mitrana" | 1993 |
| "Victor Mitrana" | 1996 |
| "Victor Mitrana" | 1998

I need to calculate 1998-1993 , bascially max(year) - min ( year ) for each author and display author and longest publication year for each author. Not sure how to achieve it.

1 ACCEPTED SOLUTION

Hello,

This query does the trick (note : I tried on the movie database, just replace Person and Movie by Author and citation as you need)

MATCH (p:Person)-[:ACTED_IN]->(m:Movie)
WITH p, max(m.released) as max, min(m.released) as min
RETURN p, max-min+1 as yearsActive
ORDER BY p.name

Cheers !

Marius

View solution in original post

2 REPLIES 2

Hello,

This query does the trick (note : I tried on the movie database, just replace Person and Movie by Author and citation as you need)

MATCH (p:Person)-[:ACTED_IN]->(m:Movie)
WITH p, max(m.released) as max, min(m.released) as min
RETURN p, max-min+1 as yearsActive
ORDER BY p.name

Cheers !

Marius

Thank you so much that trick certainly worked. Now I can see author with longest career.

MATCH (p:citations)-[:WROTE_BY]->(a:authors)
WITH a, max(p.year) as max, min(p.year) as min
RETURN a.name, max-min+1 as yearsActive
ORDER BY yearsActive