This table summarizes the changes of the data type of a field in a physical file when the data type is being referred to in a logical file.
| Physical file data types | Logical file data types |
|---|---|
| J | J, O, E, H, G |
| O | O, H |
| E | E, O, H |
| A | A, O, E, H |
| H | J, O, E, A, H |
| G | G, O, J, E |