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Cours Introduction à SQL - Apprentissage en Ligne avec Certificat
Introduction à SQL

Introduction à SQL

Ce cours est parfait pour les débutants prêts à explorer le monde de SQL. Que vous débutiez dans la gestion de bases de données ou que vous visiez à utiliser SQL pour vos projets de développement d'applications, ce cours couvre les essentiels. Vous apprendrez rapidement à exploiter tout le potentiel de SQL, de l'interrogation et la gestion des données à leur intégration transparente dans des applications réelles. À la fin du cours, vous aurez la confiance et les compétences nécessaires pour résoudre des problèmes pratiques avec SQL et améliorer votre processus de développement.Show more

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41 chapters
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Outcomes
Learning outcomes
Modules
Testimonials
Recommendations
Codefinity advantages
FAQs
What you will learn
  • Comprendre comment extraire des colonnes individuelles, multiples et toutes les colonnes des bases de données.
  • Comprendre le processus de tri et de filtrage des données récupérées pour extraire des insights significatifs.
  • Développer des capacités en filtrage avancé des données, en utilisant des opérateurs et des fonctions pour affiner les requêtes.
  • Devenir compétent dans l'application de fonctions d'agrégation comme COUNT, AVG, MAX, MIN et SUM pour analyser des ensembles de données.
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There are 6 modules in this course

Ce cours est parfait pour les débutants prêts à explorer le monde de SQL. Que vous débutiez dans la gestion de bases de données ou que vous visiez à utiliser SQL pour vos projets de développement d'applications, ce cours couvre les essentiels. Vous apprendrez rapidement à exploiter tout le potentiel de SQL, de l'interrogation et la gestion des données à leur intégration transparente dans des applications réelles. À la fin du cours, vous aurez la confiance et les compétences nécessaires pour résoudre des problèmes pratiques avec SQL et améliorer votre processus de développement.
Dans cette section, nous allons explorer comment organiser et prioriser les données renvoyées par une requête en utilisant la clause ORDER BY. Placée à la fin d'une instruction SELECT, cette clause vous permet de trier vos résultats par une ou plusieurs colonnes, soit par ordre croissant, soit par ordre décroissant, permettant ainsi une sortie de données plus significative et facilement interprétable.
Dans cette section, nous apprendrons à filtrer les données retournées en utilisant la clause WHERE de l'instruction SELECT. Nous apprendrons à tester l'égalité, l'inégalité, les plages de valeurs plus et moins significatives, et les valeurs NULL.
Dans cette section, nous explorerons comment affiner vos conditions de recherche en combinant les clauses WHERE avec les opérateurs AND et OR. Nous aborderons également comment l'opérateur NOT peut être utilisé pour exclure certains résultats.

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Recommended if you're interested in learning SQL

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