To provide a database system, a data processing method and a program by which conditions for retrieval, totalization, etc. can be stored and reused.

A registration part 30 is a registering means for registering a condition used for a function. A reuse part 40 is a reusing means for reusing a registered condition as a condition for another function by receiving an access and correction in accordance with given operation. For instance, a reusing method in which a common part set in detail is used in its entirety and only data expression such as a table and graph display is changed can be easily performed. Thereby the efficiency of operation such as the specification of a condition can be sharply improved and time required up to the output of a result desired by a user can be effectively shortened. Especially when the system is applied to the development of a software system in which various presentation of information is required, more effects can be expected.