Neo4j Adam Foust

Road Map Introduction to Neo4j NoSQL databases Graph databases How Neo4j works Comparison

Introducing Neo4j Introduced in 2010 Open source Java-based NoSQL Graph Database

NoSQL databases Four classes of NoSQL databases Key-value store Amazon’s Simple DB Column-family or big table databases Google’s Big Table Apache Cassandra database Document-oriented MongoDB Graph Databases Neo4j

Graph Database Neo4j is a graph database Database full of linked nodes Stores data as nodes and relationships

Graph Database (cont.) Nodes represent entities Edges represent relationships Connections between data are explored Faster for associative data sets Intuitive Optimal for searching social network data

How Neo4j Works Storing Objects Domain objects take a node public class Person {   //used by jo4neo   transient Nodeid node;   //simple property   @neo String firstName;   //helps you store a java.util.Date to neo4j   @neo Date date;   // jo4neo will index for you   @neo(index=true) String email;   // many to many relation   @neo Collection<role> roles;     /* normal class oriented   * programming stuff goes here   */ }</role> Storing Objects Domain objects take a node Jo4neo framework 

How Neo4j Works (cont.) Dealing with complexity Simple domains can be complex Mutual Friend example

Case Study A side by side comparison of a relational database and Neo4j Artificially generated graph dataset with natural statistics 1 million vertices and 4 million edges

Case Study Results First 250 vertices used as roots

Result Conclusion Neo4j proved to take less than half the time of the SQL database. Neo4j is optimal

Conclusion Introduced Neo4j Discussed NoSQL databases Went over graph databases How Neo4j works Case study

Questions?

References "Ayende @ Rahien." That No SQL Thing: Column (Family) Databases -. N.p., n.d. Web. 13 Mar. 2013. <http://ayende.com/blog/4500/that-no-sql-thing-column-family-databases>. WebsiteLinkTagsEditDelete "Graph Database." Wikipedia. Wikimedia Foundation, 03 June 2013. Web. 13 Mar. 2013. <http://en.wikipedia.org/wiki/Graph_database>. Krill, Paul. "Neo Technology Execs: How Neo4j Beat Oracle Database." InfoWorld. N.p., n.d. Web. 13 Mar. 2013. <http://www.infoworld.com/d/big-data/neo-technology-execs-how-neo4j-beat-oracle-database-212106>. "MySQL vs. Neo4j on a Large-Scale Graph Traversal." Javalobby. N.p., 12 May 2011. Web. 13 Mar. 2013. <http://java.dzone.com/articles/mysql-vs-neo4j-large-scale>. "Neo4j Blog." : The Top 10 Ways to Get to Know Neo4j. N.p., n.d. Web. 13 Mar. 2013. <http://blog.neo4j.org/2010/02/top-10-ways-to-get-to-know-neo4j.html>. "Processing MongoDB for and Open-Data Portal, MongoDB Emerges as NoSQL Leader." Magazine for Software Developers Programmers and Designers Software Developers Journal. N.p., n.d. Web. 13 Mar. 2013. <http://sdjournal.org/mongodb-sdj-0512/>.

Applause