Welcome to our SQL tutorial for beginners! In this video, we delve into the Primary Key Constraint in SQL, a fundamental concept for ensuring data integrity and uniquely identifying records within a table. Understanding how to use the Primary Key Constraint is essential for database administrators and developers to establish relationships between tables and enforce entity integrity.

In this tutorial, you'll learn:
- What the Primary Key Constraint in SQL is and why it is used to uniquely identify each record in a table.
- The syntax for defining Primary Key Constraint during table creation and modification using CREATE TABLE and ALTER TABLE statements.
- Practical examples demonstrating the implementation of Primary Key Constraint to enforce uniqueness and facilitate data retrieval.
- How to choose appropriate columns for Primary Key Constraint and handle Primary Key violations.
- Tips and best practices for designing database schemas with effective use of Primary Key Constraint to maintain data consistency.

By the end of this video, you'll have a solid understanding of how to effectively utilize the Primary Key Constraint in SQL to ensure data integrity and optimize database performance.

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How to use the Primary key Constraint in SQL? | SQL Tutorial For Beginners | Learn SQL

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