May 2018
Intermediate to advanced
680 pages
15h 54m
German
Content preview from XML -- Technologien, Grundlagen, Validierung, Auswertung
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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.
XQuery: Element-Konstruktor
In der Programmierpraxis mit XQuery kann es vorkommen, dass Elemente zur Laufzeit generiert werden müssen. Hier leistet der Element-Konstruktor große Hilfe.
Das folgende Beispiel berechnet in der temporären Variablen $schnitt einen Durchschnitt sämtlicher //Kauf/Gesamt-Nodes. In der folgenden Logik wird jeder einzelne relevante Kauf/Gesamt-Node mit $schnitt abgeglichen. Ist der Betrag grösser als $schnitt, so wird ein Element mehr generiert; andernfalls weniger. Hierbei kommt der Element-Konstruktor zum Einsatz.
let $input := doc("C:/wg/Ort_Elemente.xml") let $schnitt := avg($input//Kauf/Gesamt) return <erg schnitt="{$schnitt}"> { for $b in $input/Orte/Ort[1]/Mensch[position() < 3] return <kunde NN="{$b/name/text()}" ...Become 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,
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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.
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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.