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AND, OR, NOT – The Secret Behind Complex Filtering in SQL

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Learn how to use logical operators AND, OR, NOT in PostgreSQL’s WHERE clause to create powerful SQL queries with efficient data filtering.

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Description
🚀 Master Logical Operators (AND, OR, NOT) in PostgreSQL’s WHERE Clause! 🔍

Want to filter data like a pro in SQL? Understanding logical operators AND, OR, and NOT is crucial for writing complex and efficient queries in PostgreSQL. These operators help you refine your searches, retrieve specific results, and avoid unnecessary data. In this tutorial, we break down how to use logical conditions effectively to optimize your database queries.

🔹 What You’ll Learn in This Video:
✅ How AND, OR, and NOT work in the WHERE clause
✅ Combining multiple conditions to filter data efficiently
✅ When to use AND vs. OR for query optimization
✅ How NOT helps exclude unwanted records
✅ Avoiding common logical operator mistakes
✅ Using parentheses for complex filtering logic

💡 SQL Examples Covered:
✔ Retrieve employees in IT or HR departments (OR)
✔ Find employees with high salaries in a specific department (AND)
✔ Exclude certain records using NOT IN and NOT EXISTS
✔ Combine AND, OR, and NOT for complex filtering
✔ Use parentheses to structure conditions properly

🎯 Who Should Watch?
🔹 SQL Beginners & Advanced Users
🔹 Data Analysts & Database Administrators
🔹 Developers Working with PostgreSQL

📌 Next Video: EXISTS vs. NOT EXISTS – Key Differences Explained in PostgreSQL

📢 Like, Share & Subscribe for more PostgreSQL tutorials! 🚀

#PostgreSQL #SQLQueries #LogicalOperators #WHEREClause #SQLFiltering #AdvancedSQL #PostgreSQLTraining #SQLOptimization #SQLBestPractices #SQLDatabase

Видео AND, OR, NOT – The Secret Behind Complex Filtering in SQL канала Knowledge 360
PostgreSQL SQL tutorial SQL WHERE clause SQL logical operators AND OR NOT in SQL SQL query filtering PostgreSQL WHERE AND OR SQL best practices PostgreSQL logical conditions SQL WHERE multiple conditions SQL query optimization SQL advanced filtering PostgreSQL NOT operator SQL WHERE AND OR example SQL complex queries SQL logical operations PostgreSQL WHERE best practices SQL parentheses for filtering SQL NOT IN SQL data filtering techniques
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17 апреля 2025 г. 3:30:11
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