Use the Add or Edit Segment
Maps wizard
to define alternative field maps. For a segment, you
create one or more maps. For each map, you create one or more map
cases. You can use the Import Data Source wizard
or the Add or
Edit Fields wizard
to add fields to your map cases.
Procedure
To define alternative field maps for a segment:
- In the model of your project in the IMS DBD editor, right-click
the segment that contains the field that you want to add or edit a
segment map for and click Add or Edit Segment
Maps.
- In the Add or Edit Segment
Maps wizard,
define a segment map by clicking Add in the
Segment Maps section. (Alternatively, select a map and click Edit to
modify an existing map.)
- In the Add Map window, specify a map name and control field
name, and click Finish.
- Map name (NAME)
- 1- to 128-alphanumeric characters, including these characters:
$ # @. Cannot begin with DFS.
- Control field name (DEPENDINGON)
- Identifies the external name of the control field whose value
serves as the map case identifier.
- Create a case by clicking Add in
the Map Cases section.
- In the Add Case window, specify a case
name, unique case identifier data type, and unique case identifier.
Click Finish.
- Case name (NAME)
- 1- to 128-alphanumeric characters, including these characters:
$ # @. Cannot begin with DFS.
- Control field data type (CASEIDTYPE)
- Specify whether the case identifier is a character or hexadecimal
value.
- Control field value (CASEID)
- Character
- 1- to 128-alphanumeric characters, including these characters:
$ # @.
- Hexadecimal
- A hexadecimal character (0 through 9 and A through F) string whose
length is twice the value specified on the length (BYTES) parameter
of the control field name.
- Repeat steps 2 through 5 to create additional maps
and cases until all alternative field maps for the segment maps are
defined.
- Click Finish.
- To save the changes to your DBD, press Ctrl+S.
Results
You successfully created alternate field maps for a segment.