Formatting a date field

* Using the WRITE statement
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  data: gd_date(10).  "field to store output date
* Converts SAP date from 20020901 to 01.09.2002
  write sy-datum to gd_date dd/mm/yyyy.
* Converts SAP date from 20020901 to 01.09.02
  write sy-datum to gd_date dd/mm/yy.

* Using data manipulation techniques
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  data: gd_date(8).  "field to store output date
* Converts SAP date from 20010901 to 01092001
  gd_date(2)   = sy-datum+6(2).
  gd_date+2(2) = sy-datum+4(2).
  gd_date+4(4) = sy-datum(4).

* Using Function modules
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  data: gd_date(8).  "field to store output date
* Converts date from 20010901 to 01SEP2001
  gd_date   = sy-datum.
  CALL FUNCTION 'CONVERSION_EXIT_IDATE_OUTPUT'
    EXPORTING
      input         = gd_date
    IMPORTING
      OUTPUT        = gd_date.