Advanced Queries with TypeORM QueryBuilder
Explore how to use TypeORM QueryBuilder to craft advanced and flexible queries within a NestJS application. Learn to implement case-insensitive search, filter results by publication date and language, and execute complex database operations tailored to dynamic criteria efficiently.
To interact with our database, we use convenient global methods provided by the TypeORM repository, such as findOneBy, save, update, and delete. However, as our virtual library evolves, it requires more flexibility in crafting complex queries or handling dynamic conditions. This section will explore the efficient use of QueryBuilder to search for books, allowing us to find them based on various criteria.
What is QueryBuilder?
The QueryBuilder tool is a powerful feature in TypeORM, allowing for more complex database operations. With it, we can ...