METHOD FOR SYNCHRONIZING DYNAMIC ATTRIBUTES OF OBJECTS IN A DATABASE SYSTEM HAVING AN ARCHIVE

摘要

The invention relates to a method that is used to synchronize dynamic attributes of objects in a database system having an archive system. The possibility is created to also synchronize databases for which synchronization is not provided, in accordance with this method. For this purpose, an additional dynamic attribute or one additional dynamic attribute per attribute to be synchronized is introduced. By means of said attributes, it can be detected whether the particular object in the database system has been changed and synchronization between the database system and an archive system must be performed as a result thereof in order to have the object attributes archived in the current form thereof in the archive system.

主权项

1. A method of synchronizing dynamic attributes of objects in a database system with an archive system with the help of an additional dynamic attribute or one additional dynamic attribute per attribute to be synchronized, the method comprising the steps of:
when used for the first time, defining one or more additional dynamic object attributes in the database system by means of the archive system if the database system does not automatically create them when the value is first assigned, querying all the objects in the database system for which the value/values of the one or more additional dynamic object attributes is/are empty or do not correspond to the value that is the result of a hash function relating to the respective object attribute or attributes in the database system, searching and finding the queried objects in the archive system, copying the object attributes from the database system to the archive system, and marking the processed query result in the database system by writing the value that is the result of a hash function relating to the respective object attribute or attributes in the database in the form in which it was returned by the query to the respectively corresponding additional dynamic object attribute of the database system.