May 2023
Intermediate to advanced
416 pages
8h 17m
German
Content preview from COBOL - Altsysteme warten und erweiternBecome 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.
Kapitel 14: Verarbeiten von Zeichenketten
In diesem Kapitel wenden wir uns einigen zusätzlichen Anweisungen in COBOL zu, die das Programmieren wesentlich erleichtern.
Oft will man variable Satzlängen für eine bestimmte Datei erzeugen, um das externe Speichermedium besser auszunutzen, also müssen hier die Datenfelder des Datensatzes komprimiert werden. Bei der Wiederverarbeitung eines solchen Datensatzes sollen schließlich die Felder getrennt werden. Moderne Programmiersprachen arbeiten ausschließlich mit variabel langen Zeichenketten. Auch das kann eine Triebfeder sein.
Das Suchen und Ersetzen von Zeichen innerhalb von Zeichenketten ist ein weiteres Beispiel. Nicht umsonst findet man auch in modernen Programmiersprachen zahlreich Funktionen oder ...
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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.