Data base processor and its method of operation.

摘要

In a data processing system a data base processor includes data base means (32) storing a plurality of tables and a data base manager (31) comprising a command router (34) and a plurality of command processors (80-92). Select, Copy, Create and Fit command processors (85,88,89,90) are used to select a portion of a stored source table, copy it into a target table, create new rows and fill them with new data. The source table and the target table can be compared by presenting them as a view on a user terminal. The target table may be located in the same data base as the source table or in an auxiliary data base connectable and disconnectable to and from the main data base. A production control dialog (70) is used for data source and data base identification and modification purpose. The data base processor is preferably used as a Service Level Reporter (SLR) including a main data base for actual data and an auxiliary data base for forecasting data.