Join logical files in DDS

Join logical files combine different fields from more than one physical file into a single record. You must specify the JFILE keyword at the record level for join logical files.

Specify the entries in the following order to define a join logical file:

Note: Because only one record format is allowed in a join logical file, specify these entries only once.

1. Optional: Specify file-level entries
2. Specify record-level entries
3. Specify join-level entries
4. Specify field-level entries
5. Optional: Specify key field-level entries
6. Optional: Specify select/omit-field level entries

The following example shows the code for a join logical file.

|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
00010A* Joins fields from two physical files into one record format
00020A          R RECORD1                   JFILE(PF1 PF2)
00030A          J                           JOIN(PF1 PF2)
00040A                                      JFLD(NAME NAME)
00050A            NAME                      JREF(1)
00060A            ADDR
00070A            PHONE
     A