Master Thesis June 2006 Jakob T. Andersen
[email protected] Rune D. Hammerskov
[email protected] Lars H. Nielsen
[email protected] Faculty of Engineering and Science Aalborg University Department of Computer Science Title: Amigo Abstract: Subtitle: An Object Relational Query Amigo is a language for querying relational Language databases from an object oriented setting. Tra- ditionally, querying relational data from object oriented programming languages entails using Project period: SQL queries embedded in strings. This ap- Dat6 proach is not optimal, as queries are neither 2006 syntax nor type checked until they are sent to the database at runtime, with the result Project group: that fatal errors could occur during execution. d632a Amigo addresses this problem by providing syn- tax and type checking of its queries. Further- Group members: more, Amigo is designed with intuitiveness and Rune D. Hammerskov ease of use in mind. Amigo queries are ex- Jakob T. Andersen pressed using the concept of filters that was es- Lars H. Nielsen tablished in the previous project Language In- tegrated Persistence. This concept is further Supervisor: developed and expanded to accommodate the Lone Leth Thomsen language features of Amigo. Copies: 7 Pages: 123 Rune D. Hammerskov Jakob T. Andersen Lars H. Nielsen Preface Prerequisites This report is aimed at software engineers. The reader should have a basic knowledge of both object oriented programming and relational databases. As the report deals with language development the reader should have some knowledge about this as well. Reading notes The report consists of nine chapters and three appendices. The first chapter introduces the problem that this report tries to solve.