'Amigo is a language for querying relational databases from an object oriented setting. Traditionally, querying relational data from object oriented programming languages entails using SQL queries embedded in strings. This approach is not optimal, as queries are neither syntax nor type checked until they are sent to the database at runtime, with the result that fatal errors could occur during execution. Amigo addresses this problem by providing syntax and type checking of its queries. Furthermore, Amigo is designed with intuitiveness and ease of use in mind. Amigo queries are expressed using the concept of filters that was established in the previous project Language Integrated Persistence. This concept is further developed and expanded to accommodate the language features of Amigo.'