One Example program required on All types of internal tables

Question

Hi All
Good Morning and Good day to you. I know that there are three types of internal tables like standard, sorted and hashed. I would request you to please send me one small example program on each type, so that i can understand better about the usage of different types.
Hoping for positive reply.
Thanks in advance.
Regards
Nagaraju

Answer 1

hi,
data: begin of struct,
      v_id type i,
      v_name(10) type c,
      v_phn type i,
      end of struct.
                             "STANDARD TABLE.
data itab like standard table of struct with default key .
       write 'standard table'.
       struct-v_id = 1.
       struct-v_name = 'subash'.
       struct-v_phn = 234567.
       "INSERT struct into  ITAB.
       append struct to itab.
       struct-v_id = 3.
       struct-v_name = 'sanchana'.
       struct-v_phn = 2378499.
       INSERT struct into  ITAB index 1.
       "append struct to itab.
       struct-v_id = 2.
       struct-v_name = 'sanchith'.
       struct-v_phn = 2455667.
       INSERT struct into  ITAB index 2 .
       loop at itab into struct.
       write: / struct-v_id , struct-v_name,struct-v_phn.
       endloop.
       skip.
       uline.
                           "sorted table.
data itab1 like sorted table of struct with non-unique key v_id.
       write 'sorted table'.
       struct-v_id = 3.
       struct-v_name = 'subash'.
       struct-v_phn = 234567.
       INSERT struct into TABLE ITAB1.
       "append struct to itab.
       struct-v_id = 2.
       struct-v_name = 'sanchana'.
       struct-v_phn = 2378499.
       INSERT struct into table ITAB1.
       "append struct to itab.
       struct-v_id = 1.
       struct-v_name = 'sanchith'.
       struct-v_phn = 2455667.
       INSERT struct into  ITAB1 index 1.
       "append struct to itab.
       loop at itab1 into struct.
       write: / struct-v_id , struct-v_name, struct-v_phn.
       endloop.
       skip.
       uline.
                        "hashed table
   data itab2 like hashed table of struct with unique key v_id.
       write 'hashed table'.
       struct-v_id = 1.
       struct-v_name = 'subash'.
       struct-v_phn = 234567.
       INSERT struct into TABLE ITAB2.
       struct-v_id = 3.
       struct-v_name = 'sanchana'.
       struct-v_phn = 2378499.
       INSERT struct into TABLE ITAB2.
       struct-v_id = 2.
       struct-v_name = 'sanchith'.
       struct-v_phn = 2455667.
    INSERT struct into TABLE ITAB2.
&--SORTED USING SORT STATEMENT--
       loop at itab2 into struct.
       write:'non-sorted table' , / struct-v_id , struct-v_name, struct-v_phn.
       endloop.
       sort itab2 by v_id.
  SKIP.
        loop at itab2 into struct.
       write: 'sorted hash table',  / struct-v_id , struct-v_name, struct-v_phn.
       endloop.
       SKIP.
       ULINE.
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Siva