Application program considerations for DBCS

This section describes considerations for writing applications that process double-byte data.

• Design application programs that process double-byte data
  There are certain considerations when designing application programs that process double-byte data, as discussed in this topic.
• Change alphanumeric application programs to DBCS application programs
  If an alphanumeric application program uses externally described files, you can change that application program to a DBCS application program by changing the externally described files.