This section describes DBCS-capable device files and special considerations
for working with DBCS-capable device files.
Data description specifications (DDS), a language used to describe
files, can be used with DBCS-capable device files.
What a DBCS file is
A DBCS file is a file that contains double-byte data or is used to process double-byte data. Other files are called alphanumeric files.
When to indicate a DBCS file
This topic describes the situations in which you should indicate that a file is DBCS.
How to indicate a DBCS file
You must indicate that a device file is a DBCS file in order for the server to process double-byte data properly. You can indicate a DBCS file in the ways described in this topic.