With this function, you can create new field catalogs and work with existing field catalogs. Archiving information structures are defined on the basis of Field Catalogs.
Standard field catalogs, which are designed to cover most application requirements, are supplied with the Archive Information System. You should therefore only create your own field catalogs if the fields contained in the standard field catalogs do not meet your requirements.
If a standard transaction of an application only allows for standard field catalogs, customer specific field catalogs are not recognized by the system.
You need to have some expert knowledge to use this function. For example, you should be familiar with the data model of the archiving object up to table level.
You can change the definition of the existing field catalogs, for example, by adding further source fields or changing the allocation of data- and key fields. When working with existing field catalogs, you basically use the same procedures you would use for creating field catalogs (see below).
You must copy a standard field catalog from the SAP namespace into your own namespace—that is, make it a customer-specific field catalog—before you make any changes to it. All entries that begin with "SAP" belong to the SAP namespace and may no be changed.
When you create a new field catalog, you have the options of using fields from:
· one source table
· more than one source table
For information on procedures, see Creating Field Catalogs (One Source Table).
To create field catalogs from more than one source table, refer to the additional Notes, which you must observe.
Before you delete a field catalog, you must first delete all of the archive information structures that use this field catalog. The deletion of catalogs that are still being used is prevented by a deletability check. If you try to delete an SAP standard field catalog, the system issues a warning message to this effect.