What is LINQ in C#? LINQ (Language Integrated Query) is a C# feature that enables writing queries directly within the code to retrieve and manipulate data from various sources such as collections, databases, XML, and datasets. It offers a unified, readable, and type-safe syntax. Introduced in C# 3.0, LINQ supports in-memory objects (System.Linq), databases (Entity Framework, LINQ to SQL), XML (System.Xml.Linq), and more, with compile-time checking and IntelliSense support. Advantages: ·        Clean and readable code ·        Unified querying syntax ·        Compile-time checking ·        IntelliSense support ·        Strong typing Limitations: ·        May not perform well for complex queries ·        Difficult to debug long chained queries ·   ...