Datebase Cursor

[AJeB]

what is the purpose of this variable -> dbcursor ? because sometimes it becomes 1 or 2

open cursor with hold @data(dbcursor) for

select * from scarr.

[matt]

You can have more than one cursor at a time - up to 17. You have a different dbcursor for each cursor open, allowing you to specify which cursor you're fetching from or closing.

The help for the FETCH statement has a nice example https://help.sap.com/doc/abapdocu_753_index_htm/7.53/en-US/abapfetch.htm

OPEN CURSOR @DATA(dbcur1) FOR
  SELECT carrid, COUNT(*) AS count
         FROM spfli
         GROUP BY carrid
         ORDER BY carrid.

OPEN CURSOR @DATA(dbcur2) FOR
  SELECT *
         FROM spfli
         ORDER BY carrid.

DATA: BEGIN OF counter,
        carrid TYPE spfli-carrid,
        count  TYPE i,
      END OF counter,
      spfli_tab TYPE TABLE OF spfli.
DO.
  FETCH NEXT CURSOR @dbcur1 INTO @counter.
  IF sy-subrc <> 0.
    EXIT.
  ENDIF.
  cl_demo_output=>next_section( |{ counter-carrid
                              }, { counter-count }| ).
  FETCH NEXT CURSOR @dbcur2
    INTO TABLE @spfli_tab PACKAGE SIZE @counter-count.
  cl_demo_output=>write( spfli_tab ).
ENDDO.

CLOSE CURSOR: @dbcur1,
              @dbcur2.

cl_demo_output=>display( ).

[Sandra_Rossi]

It's explained in the documentation. Why not pressing F1?