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Understanding SQL JOINs: Beginner-Friendly Guide with Real Examples

Krishna Verma

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Understanding SQL JOINs: Beginner-Friendly Guide with Real Examples

30 просмотров · 8 дней назад
Krishna Verma
2 подписчика
30 просмотров · 8 дней назад
Master SQL JOINs with practical, beginner-friendly examples! 🚀 In relational databases, data is frequently split across multiple tables rather than stored in one massive file. In this video, we break down what a SQL JOIN is and how you can easily combine rows from two or more tables based on a related column. 📊 Sample Tables Used: customers table: Contains customer details (customer_id, customer_name, city). orders table: Tracks order information (order_id, customer_id, product, amount), including cases where an order isn’t linked to an existing customer. 📌 What You’ll Learn: What is a SQL JOIN and why do we use it? How primary keys and foreign keys link tables together How to write queries using sample customers and orders data 💡 Don't forget to Like, Comment, and Subscribe for more easy-to-follow SQL and data tutorials! #SQL #SQLJoins #Database #SQLTutorial #DataAnalytics #LearnSQL #CodingForBeginners