Source is a read-only built-in ispec attribute that is used to indicate the message type. It is set to a value derived from the source of input of a record to the database.
Valid values are listed in the following table.
Value | Record Source |
|---|---|
| G | Generalized Interface (GLI) |
| O | Offline Input |
| N (or space) | Page 2 format request |
| T | Standard terminal transaction |
Properties
Length = 1
Primitive = String