December 2024
Intermediate to advanced
272 pages
5h 48m
German
Content preview from SQL Schnelleinstieg - Datenbanken abfragen und verwalten in 14 Tagen
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Eine bestehende Datenbank mit ihrem Inhalt anpassen
Mit den bereits erlernten Befehlen geht es mittlerweile leicht von der Hand, eine Datenbank je nach Anforderung aufzubauen. Nur eine Kleinigkeit fehlt noch: Ansichten ändern sich, Daten veralten und die Anforderungen an eine Datenbank verschieben sich mit der Zeit.
Ohne die Möglichkeit, die Daten und Tabellen nach dem Einfügen wieder zu modifizieren, verstaubt eine Datenbank schnell und repräsentiert nicht mehr, was sie ursprünglich sollte.
Wie zu erwarten war, bietet SQL jedoch auch für dieses Problem eine Lösung an. Tabellen modifizieren, umbenennen, Daten löschen oder anpassen – all das wird ...
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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.
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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.