RWTH Aachen University
Vertical partitioning of a table splits it into two or more tables (which the authors refer to sub-tables), each of which contains a disjoint subset of the attributes of the original table, except for the key attributes. In this paper, they introduce the objective function for vertical partitioning in database systems. It has been built with the new evaluative criterion: cache hit probability. Testing the validity of the derived evaluative formula via program simulation shows its high accuracy.