The sparse data is becoming increasingly common and available in many real-life applications. However, relative little attention has been paid to effectively model the sparse data ...
Relational OLAP tools and other database applications generate sequences of SQL statements that are sent to the database server as result of a single information request issued by...
Abstract. One of the most severe problems related to database evolution is how to reflect in the data level the changes that have occurred in the conceptual schema of a database. T...
Hyper-Text Structured Query Language (HTSQL) is a standardizable middleware component that translates a HTTP request into an SQL query, performs the query against a relational dat...
Physical structures, for example indexes and materialized views, can improve query execution performance by orders of magnitude. Hence, it is important to choose the right configu...
Iman Elghandour, Ashraf Aboulnaga, Daniel C. Zilio...