In recent past, I was doing some case studies on graph databases and realized that gremlin is the graph language that I must learn. Learning this language can ensure you to be able to work on multiple graph databases.
Gremlin works smoothly on all graph databases that support Blueprints property graph data model. Gremlin can be easily used with JVM languages like Groovy, Clojure, Scala and more.
A lot of graph databases support their custom languages (e.g. Cipher in Neo4j). These languages are really useful, however they become useless on other databases.
Learning Gremlin for graph databases is equivalent to learning SQL for relational databases. Once you know SQL, you can easily work on MySQL or Postgres or Oracle without worrying about details of vendors. Same way knowing Gremlin can ensure you can work on Neo4j or Titan Graph DB, or OrientDB and other dozens of graph databases.
In this simple code snippets collection, I am trying to list down all commonly used snippets that you can use as a cheatsheet while doing graph query, analysis and manipulation.