This topic lists valid date separators.
The date separator for presentation should always be stored externally as part of the textual data.
When you use decimal fields for dates, not only must your application specify the format, but it also must handle the date separators during the input operation and presentation.
When you use date-type fields, the date separators are always included in the date. To change the date separator, you can write a high-level language routine to convert dates.