June 2010
Intermediate to advanced
900 pages
23h 11m
German
Content preview from Microsoft Access 2010 - Das HandbuchBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.
Index
Ein Index für ein Datenbankfeld ist eine (interne) Liste, bei der die Inhalte dieses Feldes vorsortiert sind. Dadurch ist ein erheblich schnellerer Zugriff auf den richtigen Datensatz möglich, wenn dieser gesucht, sortiert oder gefiltert werden soll.
Profitipp
Die Größenordnung für die mögliche Beschleunigung zwischen indiziertem und nicht indiziertem Feld ist locker das Hundertfache. Sie können diese Beschleunigung bei Ihren Datenbanken nicht nachvollziehen? Das liegt daran, dass diese zu klein sind.
Bei heute üblichen Speichergrößen passen die meisten Hobbydatenbanken problemlos in den Hauptspeicher, und dann ist der Unterschied kaum zu bemerken. Werden die Tabellen aber so groß, dass sie von Festplatte oder gar aus dem Netzwerk nachgeladen ...
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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.