noSql - db4o
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The document discusses NoSQL databases and describes db4o. It notes that NoSQL databases emerged to address scalability issues with relational databases as data volumes increased. Db4o is described as a powerful yet simple embedded object database that is faster than Hibernate and MySQL for non-trivial use cases. Db4o provides transparent persistence with minimal resource usage and easy implementation across platforms.
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noSql - db4o
- 1. noSql na prática: db4o Fábio Medeiros Faria fabiomedeirosf@yahoo.com.br www.serjava.blogspot.com
- 2. noSql? • O que é? not only Sql • 1998 • Propósito
- 3. e o modelo relacional? • Década de 70 • 4 décadas • século XX;
- 4. e o modelo relacional? • restrições de integridade • primary key • foreign key • normalização
- 5. e o modelo relacional? • Limitações: • volume dados x performance • usuários versus performance • sharding
- 6. ...noSql • motivação: escalabilidade • iniciativa: BigTable Google 2004 • Dynamo - Amazon 2007 • Cassandra - Facebook 2008 • Twitter: mysql --> Cassandra • CouchDB - Apache (MapReduce) • MongoDB 2009
- 7. db4o “the most powerful and yet simple to use database on the planet” • open source • eliminates time consuming and tedious mapping code • development process to focus on the business logic • embeddable
- 8. db4o “the most powerful and yet simple to use database on the planet” • PolePosition, shows the db4o 8.0 release to be up to 100 times faster than Hibernate and MySQL for non-trivial use cases • Native to Java and .net • Unique programming library (jar/dll) • Transparent Persistence
- 9. db4o “the most powerful and yet simple to use database on the planet” • Minimal consumption of resources • Easy implementation • Portable: wide portability “state-of-the- art”debugging tools • Reliable: ACID properties: • ObjectContainer class: commit() rollback()
- 10. db4o
- 11. db4o
- 12. db4o
- 15. db4o benchmarks
- 16. db4o benchmarks
- 17. db4o benchmarks
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