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Diagnosis
Usually additional source fields are used to assign fields with the samemeaning, but that are from different tables, to one target field. (Forexample, they can be used to link a document number of a header tablewith the document number in the corresponding items table). If the datatypes of the fields are different, then it is very likely that thefields have different meanings. Moreover, assigning several fields with different data types to a targetfield may lead to technical problems. When the archive informationsystem fills an infostructure it has to write the correpsonding valuesinto the same field of a database table. If the data types are notcompatible, the program may terminate while it is filling theinfostructure. Procedure |