Assume that a join logical file is specified as in Basic concepts of joining two physical files (example 1), and four records are contained in PF1 and five records in PF2.
The record for 301 exists only in PF2.
The program reads the join logical file and gets only four records. The record for 301 does not appear.
| Employee number | Name | Salary |
|---|---|---|
| 235 | Anne | 1700.00 |
| 440 | Doug | 950.50 |
| 500 | Mark | 2100.00 |
| 729 | Sue | 1400.90 |
These results would be the same even if the JDFTVAL keyword were specified, because a record must always be contained in the primary file to receive a join record.