In the database programming language PASCAL/R, theprogramming language PASCAL and concepts based on therelational data model are integrated. The paperinvestigates transformation strategies used in the PASCAL/Rsystem to evaluate queries with existential and universalquantifiers. Intermediate data...

Query processing in databases can be divided into two steps:selecting an 'optimal' evaluation strategy, and executing it. We first presentelementary nested loop and relational algebra algorithms for query execution andpoint out some opportunities for improving their performance. A survey...

One of the challenges in manufacturing companies nowadays is to enableappropriate IT support of production planning and execution. Integrated solutionsneed to cover company‐wide and even cross‐company business processes (fromorder receipt to product distribution) and at the same time live up...