SQL Roadmap Episode 10 — SQL Views Explained | CREATE VIEW, UPDATE VIEW, REPLACE VIEW & DROP VIEW
Welcome to Episode 10 of the SQL Roadmap Series
In this video, we'll learn about SQL Views and how they help simplify complex queries, improve code reusability, and provide an additional layer of security in databases.
A View is a virtual table created from the result of an SQL query. Instead of writing the same complex query repeatedly, you can save it as a View and query it just like a regular table.
We'll cover:
• What are SQL Views?
• Why Views are useful
• CREATE VIEW
• Querying a View
• Updating data through a View
• CREATE OR REPLACE VIEW
• DROP VIEW
• Advantages and Limitations of Views
• Real-world use cases
This video is designed specifically for beginners starting their journey in:
• SQL
• Backend Development
• Data Science
• Data Engineering
• Software Engineering
We'll build practical examples using employee and department tables to understand how Views simplify database operations and make SQL code easier to maintain.
By the end of this video, you'll know how to create, use, modify, and delete SQL Views, along with understanding when they should be used in real-world applications.
Software Used:
• MySQL
• MySQL Workbench
Topics Covered:
• CREATE VIEW
• SELECT from Views
• Updating Views
• CREATE OR REPLACE VIEW
• DROP VIEW
• Virtual Tables
• Data Abstraction
• View Limitations
This series will eventually cover:
• Indexes
• Transactions
• Stored Procedures & Functions
• Data Integrity & Security
• Performance Optimization
• Advanced SQL
and much more.
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Roadmap : https://www.notion.so/SQL-Roadmap-35a...
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