Regarding Archiving Object

Question

Hello Experts,
I have few questions about Archiving object:
1. How to create an archiving object for set of Z tables? shall i create a new archiving object by clicking on new entry or shall i copy an existing archiving object.
2.is there any restrictions on number of tables being used in an archiving object? in our scenario there are around 15 Z tables...
3. in T code AOBJ, i want to maintain customizing settings, but the screen is greyed out,which authorzation role will give me the access to this screen.
4.what are the retrieval methods avaialable in system???
5.in our scenario we have created a new archivie info structure,shall we use standard field catalog or need to create a new one???
awaiting your reply
Regards
Ramana Reddy

Answer 1

hi
ans 4 :
you should call 4 function modules in sequence to retrive the archived data from archiving files to your report program.
see the below sample code:
data declaration
data: handle                 like sy-tabix,
      buffer                 type arc_buffer,
      sbook_wa               like sbook,
      number_of_records_read type i.
open existing archive files
call function 'ARCHIVE_OPEN_FOR_READ'
     exporting
          object         = 'BC_SBOOK01'
     importing
          archive_handle = handle
     exceptions
          others         = 1.
if sy-subrc <> 0.
  write: / 'No file can be accessed'(001).
  stop.
endif.
clear number_of_records_read.
loop to get the next data object from the archive file(s)
do.
  call function 'ARCHIVE_GET_NEXT_OBJECT'
       exporting
            archive_handle = handle
       exceptions
            end_of_file    = 1
            others         = 2.
  if sy-subrc <> 0.
    exit.
  endif.
get data records from the data container
  do.
    call function 'ARCHIVE_GET_NEXT_RECORD'
         exporting
              archive_handle   = handle
         importing
              record           = buffer-segment
              record_structure = buffer-rname
         exceptions
              end_of_object    = 1
              others           = 2.
    if sy-subrc <> 0.
      exit.
    endif.
    add 1 to number_of_records_read.
  enddo.
enddo.
write: / 'Total number of records read: '(002), number_of_records_read.
skip.
write / 'Last record read: '(003).
skip.
case buffer-rname.
  when 'SBOOK'.
    sbook_wa = buffer-segment.
    write: / 'CARRID    :', sbook_wa-carrid,
           / 'BOOKID    :', sbook_wa-bookid,
           / 'CONNID    :', sbook_wa-connid,
           / 'FLDATE    :', sbook_wa-fldate,
           / 'CUSTOMID  :', sbook_wa-customid,
           / 'ORDER_DATE:', sbook_wa-order_date,
when ...
If the archive object contained more than one table
(different buffer-rname), more cases would be needed.
endcase.
close the archive session
call function 'ARCHIVE_CLOSE_FILE'
     exporting
          archive_handle = handle.
ans 5:
you can either use standard field catalog, from the available field in field catalog you can select the required fields alone to your info structure.
regards
mano