| 摘要 |
<p>An apparatus for data migration from a database of a main frame system to a database of an open system includes: an unload dataset converter to convert unload dataset downloaded from a database of the main frame system into a load file of a standard formation; a schema information generator to generate a schema information file having a conversion rule by fields of a segment necessary to convert a code system of segment data in the load filed of the standard format; a code system converter to converter the load file of the standard formation into a code system of the open system with reference to the generated schema information file; and a data migrating unit to sequentially read and migrate the segment data in the code converted file in the database of the open system. [Reference numerals] (110) Main frame system; (112) Hierarchical DB; (120) Migration apparatus; (122) Unload dataset converter; (124) Schema information generator; (126) Code system converter; (128) Data migrating unit; (130) Open system; (132) Rehosting solution DB</p> |
