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!!! WARNING !!!
When saving the configuration of the object of Historical value type (by means of the using the D2000 CNF processes), the D2000 system is checking checks whether the object has not been changed as far as the classification mentioned above is concerned. If the object was is changed, the system displays a warning message that contains both the previous and current object statuses. If the operator saves the object configuration in spite of despite this fact, some of the D2000 system parts will get into inconsistent states.
Example: If the object H.Archiv has been changed from a structured historical value to a simple one, then all ESL scripts, containing e.g. the item H.Archiv [6]^Item, are obviously naturally incorrect. Such a situation also occurs everywhere where the items of structured historical values are used in the configuration.
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After deleting a Historical value object, the D2000 Archiv process does not delete the corresponding tables in the archive SQL database. Therefore, after the deleted object is restored (e.g. by XML import from the configuration database backup), the object's data is also restored. The command DROP_LIST was can be used to delete data from the archive database, which allows for the generation of . It generates a text file with a list of SQL commands for deleting unused tables. These commands must then be executed manually. |
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