IF WE DOES NOT SELECT ANY VALUE IN SELECTION SCREEN WHAT WILL BE THE OUTPUT

hi
plz give me the answer for this

Hi bhuthapalli,
1. Normally, all reports are designed so that
  if we do not enter any thing on screen, it will show all records.
2. Normally reports use SELECT OPTION  and use IN for the query.
   This would take care if nothing is entered in select option.
  Nothing entered in select option means all records.
3. If there is a parameter on the screen,
   it is usually made obligatory.
   Bcos if we do not enter anything in parameter,
    it may not give records.
   (Bcos for parameter = is used in query)
regards,
amit m.

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