June 2010
Intermediate to advanced
900 pages
23h 11m
German
Content preview from Microsoft Access 2010 - Das Handbuch
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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.
Prüffunktionen
Beim Umwandeln von verschiedenen Datentypen geht schnell etwas schief, vor allem bei Datumswerten. Mit DateValue("24.13.2010") erzeugen Sie wenig überraschend einen Laufzeitfehler, dass die Typen unverträglich seien. Bevor Sie also Daten umwandeln, müssen Sie erst einmal prüfen, ob sie geeignet sind.
Fangen wir direkt mit diesem Problem an: Wäre der Text in ein Datum umzuwandeln? Dafür gibt es die IsDate()-Funktion, die wie alle folgenden eine True/False-Entscheidung zurückgibt (siehe Abbildung 36.21). Sie ist recht flexibel und kann auch mit ausgeschriebenen Monatsnamen umgehen.
Abbildung 36.21 Die IsDate()-Funktion prüft eine Zeichenkette ...
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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.