Databases have become ubiquitous. Almost all IT applications are storing into and retrieving information from databases. Retrieving information from the database requires knowledge of technical languages such as Structured Query Language (SQL). However majority of the users who interact with the databases do not have a technical background and are intimidated by the idea of using languages such...

Writing recursive queries for a database is currently a complicated task. The query requires the user to write complex and redundant SQL syntax. Also if the database being used as a backend is not compliant with SQL:1999 then it is not possible to write any recursive queries. In this paper, we present Structured Query Language with Recursion (SQLR), a data retrieval language used for writing re...

Relational database management systems have been widely used in industry for many years. Although there has been much research done for developing object-oriented database systems recently, it is believed that relational database systems will still dominate the market for many years. On the other hand, object-oriented programming languages become more acceptable by software developers. It is th...

Relational database management systems have been widely used in industry for many years. Although there has been much research done for developing object-oriented database systems recently, it is believed that relational database systems will still dominate the market for many years. On the other hand, object-oriented programming languages become more acceptable by software developers. It is th...

Software developers adapt to the fast-moving nature of software systems with agile development techniques. However, database developers lack the tools and concepts to keep pace. Data, already existing in a running product, needs to be evolved accordingly, usually by manually written SQL scripts. A promising approach in database research is to use a declarative database evolution language, which...