How to Use SUBQUERIES in SQL with Examples
🚀 Learn how to Use Subqueries in SQL!
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👨💻 Hey, I’m Ievgen from OWOX BI! Dive deep into the complexities of SQL with our guide on subqueries. This video will show you how to navigate intricate data structures by embedding queries within queries, allowing for powerful data manipulations and analysis directly in your SQL environment.
In this video, you'll learn:
What subqueries are and the different types they come in: single-row, multi-row, correlated, and scalar.
How to implement subqueries in your SQL queries for more dynamic data retrieval.
Practical examples to demonstrate the use of subqueries in real-world scenarios.
01:10 - What are SubQueries
01:45 - Types of SubQueries
03:13 - SubQueries in Action
03.27 - Example #1 - Multi-row SubQuery
03:59 - Example #2 - Multi-row SubQuery
04:53 - Example #3 - Single-row SubQuery
05:30 - Example #4 - Correlated SubQuery
06:00 - Example #5 - Scalar SubQuery
07:10 - Example #6 - SubQueries in FROM
07:50 - SubQueries in Complex Database Actions
08:18 - SubQueries Impact on Performance
08:40 - SQL Optimization Tips
09:45 - JOIN vs SubQuery
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📊 Subqueries can transform your data querying capabilities by allowing intricate and refined data analysis within a single SQL statement. This tutorial will equip you with the skills to implement advanced SQL techniques in your daily data tasks.
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