May 2012
Intermediate to advanced
200 pages
3h 39m
German
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Konflikte
Sobald Sie mit Replikationen arbeiten, werden Sie früher oder später mit Konflikten zu tun haben. Konflikte werden zum Beispiel durch gleichzeitige Änderungen an einem Dokument hervorgerufen. In CouchDB ist das eigentlich nicht möglich. Zum einen muss bei jeder Änderung die RevisionID mit angegeben werden, und zum anderen werden Änderungen an der Datenbankdatei nacheinander ausgeführt, wobei Änderungen in neuen Dokumenten mit derselben DocID und einer anderen RevisionID hinten angehängt werden.
Beim Speichern eines Dokuments wird die angegebene RevisionID mit der auf dem Server gespeicherten RevisionID verglichen. Nur wenn beide gleich sind, wird die Änderung auch vollzogen und das Dokument gespeichert. Ansonsten wird die Änderung zurückgewiesen, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.