Abstract: A relational database compiled/stored on a computer environment for storing data about units of work includes a first set of tables and a second set of tables. The first set of tables includes first columns and first tuples and a first dataset containing first data included in the first columns and first tuples. The second set of tables includes second columns and second tuples and a second dataset consisting of second data. The data included in the second columns and second tuples being second data. The units of work including first services, final services and current services. The unit of work having a status being inactive, active or terminated. The second data is a redundant representation of a part of the first data.