Master SQL CASE Statements | Conditional Logic Made Easy with Practical Examples

Описание: Welcome to Dev Portal!

In today’s tutorial, we’re diving deep into CASE Statements in SQL - a powerful tool for adding conditional logic to your queries. Whether you're categorizing data, working with aggregates, or dynamically filtering and sorting results, the CASE statement is a must-know feature for every SQL developer.

📝 Notes: https://github.com/nakulmitra/database-pos...

What You'll Learn in This Video:
1️⃣ What Are CASE Statements?
Understand how CASE statements function like an if-else structure in SQL.
Learn the syntax and structure for adding conditional logic to queries.

2️⃣ Using CASE with SELECT Statements:
Categorize employee salaries into Low, Medium, and High categories.
Dynamically create new columns based on conditions.

3️⃣ CASE Statements with Aggregate Functions:
Group and aggregate data by conditions (e.g., calculate total salaries by category).
Practical examples using SUM and GROUP BY with CASE.

4️⃣ Dynamic WHERE and ORDER BY with CASE:
Filter rows dynamically using CASE in the WHERE clause.
Sort rows by priority using CASE in the ORDER BY clause.

5️⃣ Real-World Use Cases:
Flag employees for bonuses based on specific criteria.
Format output data, such as appending currency symbols or adding bonuses.

Chapters for Easy Navigation:
0:00 - Introduction
0:20 - What Are CASE Statements?
1:10 - Using CASE in SELECT Queries
3:30 - Aggregating Data with CASE and GROUP BY
4:59 - Dynamic Filtering with CASE in WHERE Clause
6:12 - Sorting Data with CASE in ORDER BY
7:55 - Real-World Use Cases
11:23 - Summary

Why Watch This Tutorial?
✅ Learn to write advanced SQL queries using CASE.
✅ Solve real-world problems with practical examples.
✅ Take your database skills to the next level by mastering conditional logic.

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