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At a catalog update old and new version are compared. This process is running according to the following schema:
Project path, Project name and Standard number are checked for changes.
If projects have been cancelled, this is identified by the version number of the old project.
If a newer version has been added, this is identified by the version number of the old project and a new project is created.
If it is not possible to find a relation to an existing project, a new project is created.
The points 1 and 2 are basically performed, even if there is no ERP integration.
The following point is only relevant if an ERP integration exists. See Workflow - Katalogupdate.
Comparison of the project lines with value changes in the columns "ACTIVE_STATE" and "REQUESTED_STATE"
During checking the project lines the following cases may occur:
Lines without link in the LinkDB
Additional project lines cannot have a link in the LinkDB. No further checking is processed.
At all project lines, which have a link in the LinkDB, an exact checking of changes (project, table, geometry) can be processed.
Furthermore, before executing the update, it is determined, which values should be set in the columns "ACTIVE_STATE" and "REQUESTED_STATE".
The following flow chart illustrates the process of a catalog update: