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SQL Server Hindi Part4

Original price was: ₹2,700.00.Current price is: ₹1,499.00.

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Description

  • Introduction to CTEs – Understand the purpose and syntax of Common Table Expressions in SQL Server.

  • 🔄 CTE Syntax Breakdown – Learn how to use the WITH clause to define temporary result sets.

  • 📄 CTE vs. Derived Tables – Clear comparison showing how CTEs offer improved readability and reusability over nested subqueries.

  • 📈 Using CTEs in Simple SELECT Queries – Build foundational skills using CTEs in basic queries.

  • 🔗 CTEs with JOINS – Learn how to join CTEs with other tables for more complex query scenarios.

  • 🧠 Code Clarity and Maintenance – Understand how CTEs improve query structure, especially in multi-step logic.

  • 🕵️‍♂️ Nested and Chained CTEs – Introduction to multiple CTEs in a single query block for step-by-step transformation.

  • 🔍 Debugging Made Easier – How CTEs simplify troubleshooting compared to deeply nested derived tables.

  • 🧹 Cleaner Queries – Demonstrate how CTEs make SQL scripts more modular and easier to read.

  • 📚 Real-World Use Cases – Practical examples to show where CTEs outperform traditional subqueries.

  • Understanding Data Integrity – Learn the importance of enforcing valid, consistent, and accurate data in relational databases.

  • 🔒 Types of Constraints Explained – Deep dive into PRIMARY KEY, FOREIGN KEY, UNIQUE, CHECK, and DEFAULT constraints.

  • 🏗️ Creating Constraints – Syntax and examples for adding constraints during CREATE TABLE and using ALTER TABLE.

  • 🧯 Dropping Constraints – Learn how to drop constraints temporarily for data correction or maintenance.

  • 🔁 Restoring Constraints – Best practices to recreate constraints after temporary removal to preserve data integrity.

  • ✏️ Altering Constraints – Modify existing constraints safely using ALTER TABLE and understand limitations.

  • 🔄 Parent-Child Table Relationships – Explore how foreign key constraints link related tables and enforce referential integrity.

  • 🚫 Effect on DELETE and UPDATE Operations – Understand constraint behavior with CASCADE, SET NULL, and NO ACTION options.

  • ⚠️ Insert Violations and Prevention – How constraints prevent invalid INSERT operations and maintain consistency.

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