Learning Guide: SQL from Scratch
Want to learn SQL from scratch?
In this video, you'll learn the fundamental concepts of the most widely used query language for working with relational databases.
You'll learn what SQL is, how tables and relationships between them work, and the most important statements that every developer or data analyst should know.
📚 In this video, we'll cover:
• What is SQL and what is it used for?
• What is SQL and what is it used for? • Relational databases
• Tables, rows, and columns
• Primary and foreign keys
• Constraints (UNIQUE, CHECK, and DEFAULT)
• SELECT, INSERT, UPDATE, and DELETE
• JOINs (INNER, LEFT, RIGHT, and FULL OUTER)
• Subqueries
• Numeric, text, and date functions
• COUNT, SUM, AVG, GROUP BY, and HAVING
• Data types
• Indexes and query optimization
• DDL, DML, DCL, and TCL
• Transactions and ACID properties
SQL is a fundamental skill for software developers, data analysts, data scientists, data engineers, and database administrators.
🎓 If you want to learn SQL in depth, including MySQL, PostgreSQL, SQL Server, and SQLite, I invite you to check out my complete course at Programación y Más: https://programacionymas.com/series/b...
👉 You can register and start with the first lessons for free.
💬 Let me know in the comments what topic you'd like to learn in a future video.
#Databases #MySQL #PostgreSQL #SQLServer #SQLite #SoftwareDevelopment
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