[emehrkay]

The advantage may just be the way you interface with the data, SQL vs Cypher/Gremlin(Groovy). I know with Gremlin one can easily walk the graph, write lambda functions to evaluate certain points while you traverse, create easy algorithms to do breadth/depth-first traversals, etc. all as a query. Those things just don't seem possible with SQL alone. Using the setup of a node and edge table, how could I write a query that would start with a node, find all edges of a type and go X levels deep, Y nodes wide, keep reference points that you can then go back to and restart the query from. Maybe write some sort of SQL function, but those things are hideous.

It would be interesting to see a script-type language on top of a traditional relational db.