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.
Zusammenfassung
In diesem Kapitel wurden Ihnen die vier Typen von Aktionsabfragen vorgestellt, mit denen in Access umfangreiche Änderungen an Datensätzen möglich sind:
Die Aktualisierungsabfragen („Aktualisierungsabfragen“) ermöglichen die nachträgliche Änderung bestehender Datensätze. Sie können dabei sowohl Datensätze in der gleichen Tabelle überschreiben als auch von einer in eine andere Tabelle kopieren.
„Tabellenerstellungsabfragen“ werden eher selten eingesetzt, weil sie anhand der Daten immer eine neue Tabelle erstellen und die Datensätze dort anfügen. Eine gleichnamige Tabelle wird vorher immer gelöscht, was im Echteinsatz eher lästig ist.
Das Problem des vorherigen Löschens lösen „Anfügeabfragen“, welche in eine bestehende Tabelle zusätzliche ...
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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.