CL Programming

Converting Alphanumeric Programs to Process DBCS Data

If an alphanumeric application program uses externally-described display files, you can change that application program to a double-byte application program by changing only the files. To convert an application program, do the following:

  1. Create a duplicate copy of the source statements for the alphanumeric file you want to change.
  2. Change alphanumeric constants and literals to double-byte constants and literals.
  3. Change fields in the file to one of the following data types to enter DBCS data:

    You do not have to change the length of the fields.

  4. Store the converted display file in a separate library. Give the file the same name as its alphanumeric version.
  5. To use the converted file in a job, change the library list, using the Change Library List (CHGLIBL) command, for the job in which the file is used. The library in which the double-byte display file is stored is then checked before the library in which the alphanumeric version of the file is stored.


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