Query Builder
A query builder is a programming tool or library that provides a fluent, object-oriented interface for constructing database queries, typically SQL, without writing raw query strings. It allows developers to build queries programmatically using method chaining and conditional logic, abstracting away the underlying database syntax. This helps prevent SQL injection vulnerabilities and makes queries more readable and maintainable.
Developers should use query builders when building applications that interact with databases, especially in web development, to enhance security by avoiding raw SQL strings that are prone to injection attacks. They are ideal for dynamic queries where conditions or joins vary at runtime, as they simplify complex query construction and improve code organization. Query builders are commonly used in ORM frameworks and modern backend systems to streamline database operations.