Resident good: NoSQL

Lyubomir Filipov  *  TarnovoConf 2015  *  @FilipovG

Who am I?

Lyubomir Filipov
 

PHP Dev
 

Enthusiast

NoSQL

History

1998

2009

Strozzi NoSQL

Johan Oskarsson

NoSQL

This all happened

• Not using relational model
   
• Well-clustered
   
• Open source
   
• Schemaless
   

Too many relations

Main types

• Key-Value databases
   
• Document databases
   
• Graph databases
   
• Column-Family databases

Key-Value databases

• Based on “key-value”
• Well-clustered
• Speed
• Indexes
• Examples: Riak, Redis, Berkeley DB, Hamster DB

Key-Value databases

Key-Value databases

Key-Value databases

                     Suitable Use Cases:

• Sessions
• User settings
• E-commerce shopping carts

Key-Value databases

                      When Not to Use:

• Relations among data
• Multioperation Transactions
• Query by data

Key-Value databases

Document databases

• Document-based
• Large amount of data per document
• No transactions
• Examples: MongoDB, CouchDB, Terrastore, OrientDB, RavenDB

Document databases

Document databases

Document databases

                               Suitable Use Cases:

• Logs
• Comments, CMS
• Data analysis
• E-commerce

Document databases

       When Not to Use:

• Operations between aggregates
• Queries against Varying Aggregate Structure

Document databases

Column-Family databases

• Key and family of values
• Indexes
• No transactions
• Examples: Cassandra, Hbase, Amazon Simple DB

Column-Family databases

Column-Family databases

Column-Family databases

                                Suitable Use Cases:

• Logs
• CMS
• Counters
• Expiring usage

Column-Family databases

                             When Not to Use:

• Aggregate functions
• Prototypes

Column-Family databases

Graph databases

• Complicated relations
• Indexes
• Transactions
• Examples: Neo4j, OrientDB, FlockDB

Graph databases

                        Suitable Use Cases:

• Connected Data
• Marketing
• Location-Based Services

Graph databases

                 When Not to Use:

• Update all or a subset of entities

Graph databases

Polyglot Persistence

Polyglot Persistence

Question

Brewer's theorem

Brewer's theorem

DB-Engines Ranking

More..

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