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  1. SQL - Logical Operators - GeeksforGeeks

    Oct 14, 2025 · SQL Logical Operators are used to test conditions in queries, returning results as TRUE, FALSE, or UNKNOWN. They help in combining, negating, and comparing conditions, …

  2. SQL Operators - W3Schools

    Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.

  3. Logical Operators (Transact-SQL) - SQL Server | Microsoft Learn

    Feb 28, 2023 · Logical operators test for the truth of some condition. Logical operators, like comparison operators, return a Boolean data type with a value of TRUE, FALSE, or UNKNOWN.

  4. SQL Logical Operators

    This tutorial introduces you to the SQL logical operators and shows you how to use them to test for the truth of a condition.

  5. SQL Logical Operator - w3resource

    Apr 20, 2024 · SQL Logical Operator: The Logical operators are those that are true or false. Learn more about Logical operators with various combination of examples.

  6. SQL Logical Operators Code Examples – BETWEEN, EXISTS, IN, …

    Aug 7, 2023 · The purpose of logical operators is to test for the truth of some condition and return a Boolean value that can be true, false, or unknown. The following is a list of operators and …

  7. Boolean Logical Operators in SQL: Lesson 9 Free Beginner SQL

    Welcome to Lesson 9 of the free Big SQL Energy Beginner Course⚡️ Today we’re learning about filtering data using Boolean Operators in the WHERE clause in SQL!

  8. PostgreSQL: Documentation: 18: 9.1. Logical Operators

    Sep 25, 2025 · 9.1. Logical Operators # The usual logical operators are available: boolean AND boolean → boolean boolean OR boolean → boolean NOT boolean → boolean SQL uses a …

  9. Boolean Expressions in SQL - GeeksforGeeks

    Jul 23, 2025 · Unlike other data types, SQL does not allow defining Boolean data types directly in table creation. Instead, Boolean logic is implemented using comparison operators (=, >, <, …

  10. SQL - Logical Operators - Online Tutorials Library

    In SQL, logical operators are used to create conditional expressions that evaluates to either true or false. They are used in the WHERE clause of SELECT, UPDATE, DELETE, and other SQL …