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Operators

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Operators

SQL operators are symbols or keywords used to perform operations on data within a database. They are essential for constructing queries that filter, compare, and manipulate data. Common types of operators include arithmetic operators (e.g., +, -, *, /), which perform mathematical calculations; comparison operators (e.g., =, !=, <, >), used to compare values; logical operators (e.g., AND, OR, NOT), which combine multiple conditions in a query; and set operators (e.g., UNION, INTERSECT, EXCEPT), which combine results from multiple queries. These operators enable precise control over data retrieval and modification.

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