topic Re: .dat file creation on Application server in Application Development and Automation Discussions

.dat file creation on Application server

Former Member — Mon, 22 Aug 2005 12:22:47 GMT

Hi All,

I need to create one file with extension ".dat" on Application server. I hv no clue how should I proceed with this.

I just know We can use OPEN DATASET to create, read & write into files on Application server.

How could we deal about extension of these files?

Thanks in advance.

Prasad

Re: .dat file creation on Application server

RichHeilman — Mon, 22 Aug 2005 12:32:56 GMT

Here is an example of copying a file on the backend.

Notice the extensions.




report zrich_0001.

Parameters: d1 type localfile default '/usr/sap/TST/SYS/Data1.txt',
            d2 type localfile default '/usr/sap/TST/SYS/Data2.dat'.

data: begin of itab occurs 0,
      rec(20) type c,
      end of itab.
data: wa(20) type c.


start-of-selection.

  open dataset d1 for input in text mode.
  if sy-subrc = 0.
    do.
      read dataset d1 into wa.
      if sy-subrc <> 0.
        exit.
      endif.
      itab-rec = wa.
      append itab.
    enddo.
  endif.
  close dataset d1.

  open dataset d2 for output in text mode.
  loop at itab.
    transfer itab to d2.
  endloop.
  close dataset d2.

Regards,

Rich Heilman

Re: .dat file creation on Application server

Former Member — Mon, 22 Aug 2005 16:51:40 GMT

Hi Prasad,

Filename (including extension) doesn't really matter for these statements, you can choose whatever extension you want. Example given above is a good starter. Please pay attention to the "mode" used for opening dataset/file. Choose the one that meets your requirement. I feel you should use "binary" mode.

Cheers,

Sanjeev