SQL Server Hindi Part4
Original price was: ₹2,700.00.₹1,499.00Current price is: ₹1,499.00.
Description
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✅ Introduction to CTEs – Understand the purpose and syntax of Common Table Expressions in SQL Server.
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🔄 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.
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📈 Using CTEs in Simple SELECT Queries – Build foundational skills using CTEs in basic queries.
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🔗 CTEs with JOINS – Learn how to join CTEs with other tables for more complex query scenarios.
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🧠 Code Clarity and Maintenance – Understand how CTEs improve query structure, especially in multi-step logic.
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🕵️♂️ Nested and Chained CTEs – Introduction to multiple CTEs in a single query block for step-by-step transformation.
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🔍 Debugging Made Easier – How CTEs simplify troubleshooting compared to deeply nested derived tables.
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🧹 Cleaner Queries – Demonstrate how CTEs make SQL scripts more modular and easier to read.
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📚 Real-World Use Cases – Practical examples to show where CTEs outperform traditional subqueries.
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✅ Understanding Data Integrity – Learn the importance of enforcing valid, consistent, and accurate data in relational databases.
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🔒 Types of Constraints Explained – Deep dive into
PRIMARY KEY
,FOREIGN KEY
,UNIQUE
,CHECK
, andDEFAULT
constraints. -
🏗️ Creating Constraints – Syntax and examples for adding constraints during
CREATE TABLE
and usingALTER TABLE
. -
🧯 Dropping Constraints – Learn how to drop constraints temporarily for data correction or maintenance.
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🔁 Restoring Constraints – Best practices to recreate constraints after temporary removal to preserve data integrity.
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✏️ 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.
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🚫 Effect on
DELETE
andUPDATE
Operations – Understand constraint behavior withCASCADE
,SET NULL
, andNO ACTION
options. -
⚠️ Insert Violations and Prevention – How constraints prevent invalid
INSERT
operations and maintain consistency.
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