Dokumentenorientiere Datenbanken am Beispiel CouchDB

Dokumentenorientierte Datenbanken ,[object Object]

Wer bin ich? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Schema? Nein! ,[object Object],[object Object],[object Object],[object Object],[object Object]

Dokumente ,[object Object],[object Object],[object Object],[object Object],[object Object]

Abfragen ,[object Object],[object Object],[object Object],[object Object],[object Object]

CouchDB ,[object Object],[object Object],[object Object],[object Object],[object Object],connect(Host, User, Password) -> {ftp_server,Host} ! {connect,self(),User,Password}, receive {ftp_server, Reply} -> Reply; Other -> Other after 10000 -> timeout end Erlang Beispiel

Herausragend ,[object Object],[object Object],[object Object],[object Object]

ReST on the Couch ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

MVCC ,[object Object],[object Object],[object Object],[object Object],[object Object]

Batteries Included ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

PHP Bibliotheken ,[object Object],[object Object],[object Object],[object Object],[object Object]

Map & Reduce ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Beispiel - Map ,[object Object],[object Object],[object Object],[object Object],[object Object],function(doc) { for (tag in doc.tags) { emit(doc.tags[tag], 1); } }

Beispiel Map&Reduce ,[object Object],[object Object],[object Object],[object Object],function(doc) { for (tag in doc.tags) { emit(doc.tags[tag], 1); } } function(keys, values) { return sum(values); }

Vor- und Nachteile von Map & Reduce ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Replikation einfach gemacht ,[object Object],[object Object],[object Object],[object Object],[object Object]

Arbit Tracker ,[object Object],[object Object],[object Object],[object Object],[object Object]

CouchApps ,[object Object],[object Object],[object Object],[object Object],[object Object]

Sonstige Anwendungsgebiete ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

MongoDB ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Amazon SimpleDB ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Google Bigtable (AppEngine) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Vielen Dank für die Aufmerksamkeit!

Dokumentenorientiere Datenbanken am Beispiel CouchDB

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