Creating Field Catalogs (One Source Table)

In the initial screen of the Archive Retrieval Configurator (ARC), choose Environment  Field Catalogs and then New Entries.

Enter the name of the field catalog (it cannot begin with SAP), a description, and the archiving object for which the field catalog is intended.

In the fields File in Index and Offset in Index, you can specify how the name of the archiving file and the offset of the data object are included in the information structure. You can use the following values:

• Values for file names

  Value for file names	Description
  D	Includes the file name as a data field. This is the minimum value. It causes the archive file name to be entered in the data area of the structure table.
  K	Includes the file name as a key field. Select this value if the entries in the table would otherwise not be unique.

• Values for the offset

  Value for offset	Description
  D	Includes the offset name as a data field. This value is sufficient for a direct access to archived data.
  K	Includes the offset name as a key field. Select this value if the entries in the table would otherwise not be unique.
  No value	The offset is not included in the structure table. Choose this setting if you do not want direct access. This allows you to reduce the size of the structure table.

To perform the field assignment, first select the catalog and then the Field Selection node in the navigation area. Choose New Entries and enter the required data.

• You can choose the field number and target field yourself. The name of the target field appears in the generated table and should have a definition that makes sense for reporting. The field number describes its position in the information structure and serves as a sort criterion.

• However, the source field must correspond with the actual field name from the source table.

• The source field entered directly in the field selection is also the reference field. The data type of the relevant field in the information structure is derived from this reference field.

• The source table must be a table for which the archiving object in the information structure writes data to the archive. These tables are maintained in the transaction AOBJ for the archiving objects.

• If you mark a Key field, that field is included in the key to the structure table. A table's key fields must come at the beginning, that is, the field numbers of the key fields must be smaller than the field numbers of the data fields. Furthermore, the key fields must be connected, that is, no non-key fields are allowed to come between key fields.

• The Mandatory Key Field checkbox is valid only for key fields. If you select this checkbox, the data record will be included only if the relevant field in the source table is not empty.

Save your entries.