DATA BASE OPERATION SYSTEM

摘要

PURPOSE:To make data base operation easy and to realize operation description environment which is high in understanding by enabling definition and execution interactively by using a chart type picture where arithmetic operation for the retrieval, addition, alteration, etc., of a data base is described. CONSTITUTION:A 1st means 150 describes an input table 1a to be operated and an output table 1b as an operation result in chart form respectively. A 2nd means describes the arithmetic operation in a specific area of input data represented by the 1st means 150 and define the operation contents. Consequently, an user can define operation procedures only in non-text language by using only a drawing and the data base operation environment which is superior in operability and high in understanding can be realized.