No-Nonsense NoSQL
@jennstrater | Senior Consultant | Object Partners
| Co-Founder | Gr8Ladies 
Agenda
- Definition
- Types
- Gr8Ladies Example Application
- MongoDB
- Redis
What is NoSQL?
- Not Only SQL
- Group of data storage solutions that are not Relational Database Management System(RDBMS)
- Schemaless
- Non-relational
Types of NoSQL solutions
- Key-value
- Document
- Column
- Graph
Key-value Stores
Examples
MemCached
DynamoDB
Redis*
Uses
- Content Caching
- Transient Data
- Session Data
- Image Stores
Considerations
- Relationships
- Transactions
- Querying
Libraries & Plugins
Document Stores
Examples
CouchDB
RavenDB
Azure DocumentDB
MongoDB
Uses
- Content Management Systems(CMS) / Blogging Platforms
- Forms/data with many optional fields
- Frequently Changing Schemas
Considerations
- Complex transactions
- Complex searching
Libraries & Plugins
Column Databases
Examples
Cassandra
HBase
Hypertable
Use Cases
- CMS Systems/ Blogging Platforms
- Log Aggregators
- Incremental Counters
Considerations
- Schema Changes
- Arbitrary unstructured data
Graph Databases
Examples
Neo4J
OrientDB
Allegro Graph
Uses
- Many connections between data
- Social Networks
- E-commerce Recommendations
- Nearby Locations and Routing
Considerations
- Casscading writes
- Very different way of thinking about data
Libraries & Plugins
Suggested Reading
- Sadalage, Pramod J., and Martin Fowler.
NoSQL Distilled: A Brief Guide to the Emerging World of Polyglot Persistence . Addison-Wesley Professional, 2012. Print. - Vardanyan, Mikayel. "Picking the Right NoSQL Database Tool."
Monitis Blog . 22 May 2011. Web. - Copeland, Rick.
MongoDB Applied Design Patterns . O'Reilly Media, 2013. Print. - Chinnachamy, Arun.
Redis Applied Design Patterns . Packt Publishing, 2014. Print.
How do I pick just one?
You don't have to!
Example Task
Gr8Ladies Products
- Catalog Products
- Shopping Cart
Approaches
- All In -
MongoDB GORM - Partial -
Grails-Redis plugin
MongoDB
Terminology
- Databases
- Collections
- Document