1. NOSQL Databases for the
.NET Developer
Jesus Rodriguez
CEO, Co-Founder Tellago, Inc
CEO, Co-Founder Tellago Studios, Inc

2. About me….
• Hackerpreneur
• Co-Founder Tellago, Tellago Studios, Inc
• Microsoft Architect Advisor
• Microsoft MVP
• Oracle ACE
• Speaker, Author
• http://moesion.com
• http://weblogs.asp.net/gsusx
• http://jrodthoughts.com

3. Agenda
• Why NOSQL DBs
• NOSQL DBs for the .NET Developer
• Types of NOSQL DBs: Document, Key-Value,
Graph, Objects
• NOSQL DBs in the Cloud
• Demo Demo Demo Demo

4. If You Are Here It Is Because You Are Different

5. NOSQL DBs?

6. NOSQL != NoSQL or
NOSQL != (!SQL)

8. The Data World is
Changing

9. Big Data

10. Concurrency

11. Unstructured Data

12. Fast Reads, Scalable Writes

13. CAP Theorem

14. NOSQL & .NET

15. NOSQL & .NET
• .NET is a primary platform supported by NOSQL
databases
• Native .NET clients
• Interoperable HTTP/REST APIs
• Native .NET NOSQL DBs: Trinity, RavenDB, AppFabric
Cache

16. Types of NOSQL DBs?

17. Key Value Stores
• Focus on scaling to huge amounts of data
• Designed to handle massive load
• Based on Amazon’s Dynamo paper
• Data model: (global) collection of Key-Value pairs
• Dynamo ring partitioning and replication
• Examples:
– Dynomite
– Voldemort
– Tokyo{Tyrant, Cabinet, etc...}
– Redis

18. Key Value Stores & .NET
• Native .NET Interfaces: Redis, MemcacheDB
• HTTP Interface: Riak
• Hard to interoperate with .NET: Voldemort, Tokyo
Cabinet

19. Demo: Using Redis from
.NET

20. Document Stores
• Similar to Key-Value stores, but the DB knows what the
Value is
• Inspired by Lotus Notes
• Data model: Collections of Key-Value collections
• Documents are often versioned
• Examples:
– CouchDB
– MongoDB
– RavenDB
– OrientDB
– JackRabitt

21. Document Stores & .NET
• Native .NET Interfaces: MongoDB, RavenDB
• HTTP Interface: CouchDB, OrientDB
• Hard to interoperate with .NET: JackRabbit

22. Demo: Using MongoDB
from .NET

23. Graph Databases
• Focus on modeling the structure of data - interconnectivity
• Scales to the complexity of the data
• Inspired by mathematical Graph Theory ( G=(E,V) )
• Data model: “Property Graph” ‣Nodes
– Relationships/Edges between Nodes (first class)
– Key-Value pairs on both
– Possibly Edge Labels and/or Node/Edge Types
• Examples:
– Trinity
– Neo4j
– AllegroGraph
– FlockDB

24. Graph Databases & .NET
• Native .NET Interfaces: Trinity
• HTTP Interface: Neo4J, AllegroDB
• Hard to interoperate with .NET: FlockDB

25. Demo: Using Neo4J
from .NET

26. Object Databases
• Neither gaining nor loosing traction
• •Not part of the NOSQL community
• •Still a good solution to a lot of problems
• •Focuses on matching object oriented programming
paradigm
– Simplicity to integrate
– Ease of use
• Examples:
– Db4O
– Versant

27. Object Databases & .NET
• Native .NET Interfaces: DB4O
• HTTP Interface: --
• Hard to interoperate with .NET: Versant

28. Demo: Using DB4O
from .NET

29. Big Data Clones
• Like column oriented Relational Databases, but with a twist
• Tables similarly to RDBMS, but handles semi-structured
• Based on Google’s BigTable paper
• Data model: ‣Columns → column families → ACL
– ‣Datums keyed by: row, column, time, index
– ‣Row-range → tablet → distribution
• Examples:
– HBase
– Hypertable
– Cassandra
– LINQ To HPC???

30. Object Databases & .NET
• Native .NET Interfaces: LINQ To HPC
• HTTP Interface: HBase
• Hard to interoperate with .NET: Cassandra

31. NOSQL & The Cloud

32. NOSQL Cloud Databases
• NOSQL is the predominant model for cloud databases
• Native NOSQL cloud databases
– Azure Table Service
– Amazon Simple DB
• NOSQL Databases in PaaS platforms
– DotCloud
– CloudFoundry
– Heroku

33. Demo: Using AWS
SimpleDB from .NET

34. Summary
• NOSQL Databases are becoming one of the predominant
data storage models in the enterprise
• There are different models of NOSQL Databases:
Document, Key-Value, Graph, BigTable
• NOSQL databases are the predominant data storage
model for cloud infrastructures
• There is a large variety of NOSQL interfaces available to a
.NET developer.
• Start small, iterate

35. Thanks
jesus.rodriguez@tellago.com
http://www.tellago.com
http://weblogs.asp.net/gsusx
http://jrodthoughts.com