2. A system according to claim 1, wherein said system further comprises at least one terminal, and a host computer having view means for supplying a table visible image based on relations to said terminal.
2. A system according to claim 1, wherein said system further comprises at least one terminal, and a host computer having view means for supplying a table visible image based on relations to said terminal. 4. A system according to claim 2, wherein said system further comprises means for detecting a predetermined character of attributes of said relation of said relational database, means for informing said terminal by said view means of said detection and inputting an instruction from said terminal, and means for converting a non-normal form into a first normal form in accordance with said input instruction.