The char datatype represents a single character. Char fields can consist of any character representable with a single byte, except for the Start of Header (SOH) control character.
Char fields are case-sensitive, i.e. a != A.
| Example | Valid | Notes |
|---|---|---|
| a | ||
| ! | ||
| ab | Longer than one character | |
| ␁ | Cannot be the SOH character |