Fortgeschrittene SQL
Course
100500 Learners Already enrolled- Machen Sie sich mit fortgeschrittenen SQL-Techniken wie der Gruppierung von Daten und der Filterung vertraut, um komplexe Abfragen zu erstellen.
- Verstehen Sie die Feinheiten verschachtelter Unterabfragen für eine tiefgehende Datenanalyse.
- Erwerben Sie die Fähigkeit, mehrere Datenbanktabellen gleichzeitig durch verschiedene Join-Operationen zu manipulieren.
- Meistern Sie die Anwendung von INNER JOIN, LEFT JOIN und RIGHT JOIN für eine optimierte Datenabfrage.
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There are 6 modules in this course
Dieser Kurs ist perfekt für diejenigen, die bereits grundlegende Kenntnisse in SQL besitzen und sich in fortgeschrittene Konzepte vertiefen möchten, um leistungsfähigere Abfragen zu erstellen. Im Verlauf des Kurses werden Sie sich mit der Gruppierung von Daten und der Filterung gruppierter Daten vertraut machen. Sie lernen auch, wie Sie gleichzeitig mit mehreren Tabellen arbeiten und diese kombinieren können. Darüber hinaus werden Sie verschiedene Arten von Tabellen-Joins erkunden und deren praktische Anwendung kennenlernen.- Group by-KlauselPreview
- Reihenfolge der AnweisungenPreview
- Herausforderung: Gesamte Fahrzeit für Jede Subway-LiniePreview
- Durchschnittliche Note Der Schüler HerausforderungPreview
- Suche nach der Herausforderung der Besten MathematikstudentenPreview
- Having-KlauselPreview
- Mehrere Aggregatfunktionen in der QueryPreview
- Komplexere FilterungPreview
- Zwei Tabellen VerknüpfenPreview
- Herausforderung: Kategorie Nach Produktpreis ErmittelnPreview
- Herausforderung: Mindestpreis Nach Kategorie ErmittelnPreview
- Herausforderung: Produktmenge Nach Kategorie ErmittelnPreview
- Left-, Right- und Inner-JoinsPreview
- Herausforderung: TabellenverknüpfungPreview
- Herausforderung: Verwendung von FULL JOINPreview
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Reviewed on Jun 16, 2024
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If you want a simplified version of learning SQL in a step-by-step way, Codefinity is it!
Recommended if you're interested in learning SQL
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