db.mycollection.find ( {"location":{"coordinates" : [51.489220, -0.162866]} });

{$geoNear : {"near": {"type": "Point", "coordinates" : [51.489220,-0.162866]}, "maxDistance":10000, "spherical":true} }

] );

{"near":{"type":"Point", "coordinates" : [51.489220,-0.162866]}, "maxDistance":10000, "spherical":true} }

] );

db.mycollection.find ( {"address":{"type": "Point", "coordinates" : [51.489220, -0.162866]} });

MFS

MongoFS

GridFS

NTFS

ONE/ANY

TWO

ALL

QUORUM

You can associated two indexes to a single attribute

Cassandra uses strong data types

You cannot project a single value from a SET data type

A row is identified by a Key

SELECT firstname, lastname FROM Person WHERE interests CONTAINS "Soccer";

SELECT firstname, lastname FROM Person WHERE interests = "Soccer";

SELECT interests FROM Person WHERE id=10;

SELECT interests[0] FROM Person WHERE firstname = "Zlatan" ALLOW FILTERING;

Share the discovery of services

Manage several database intances

migrate your database from an instance to another

One database to rule them all

Cypher the DSL of Neo4j

For each node/relationship/label an index is automatically created

The consistency of a transaction is guarantee

The database stores a relationship with 2 node references but also connects the chain of relationships

ON MERGE

GROUP BY

WHERE

MATCH

Fraud detection

Social-network analysis

Recommandation

Sentiment analysis

Geo-localized clustering

Optimize pattern queries

Define a relationship between two or more nodes

Build both oriented and non-oriented relationships

Add labels on relationships