NOSQLIl rinascimento dei database?

Paolo Bernardi

Facebook

500+ TB dati/giorno

Datacenter-friendly

Developer-friendly*

*depending on the developer

Document-based

Key/Value

BigTable

Graph-based

> j = { name : "mongo" };

{"name" : "mongo"}

> t = { x : 3 };

{ "x" : 3 }

> db.things.save(j);

> db.things.save(t);

> db.things.find();

{ "_id" : ObjectId("4c2...84a"), "name" : "mongo" }

{ "_id" : ObjectId("4c2...84b"), "x" : 3 }

> SET server:name "fido"

"OK"

> GET server:name

"fido"

> RPUSH friends "Tom"

1

> RPUSH friends "Bob"

2

> LRANGE friends 0 -1

["Tom","Bob"]

RowRow CF Column Tstamp Value

Key

Polyglot PersistenceA Babel?

Grazie per l'attenzione!

Paolo Bernardi@bernarpa