Output from tables which I mention in select options of the screen as input

Question

Dear All,
I want to fetch the data in the form of output from tables which I will mention in select options of the screen as input.
In selection screen option if I write any table name then how can i select this table in select query of ABAP program ?.
I may select any tables in select options of screen. But In select query I should get that table name automatically.. How ?
e.g. If i put table name as an input i.e.  MARA  in select option .
In program how to write select query to get records from that table ?
SELECT MTART MATKL from MARA
Every time I should not go to select query of program  & replace the tablename.
How to solve this problem ?

Answer 1

Hi,
PARAMETERS p_table(30)." type string.
"This is a Tested code Just Execute and Check
START-OF-SELECTION.
  DATA: lt_tmp TYPE REF TO data.
  DATA : line TYPE REF TO data.
  FIELD-SYMBOLS: <lt_tmp> TYPE STANDARD TABLE, <wa>, <dyn_field>.
  CREATE DATA lt_tmp TYPE STANDARD TABLE OF (p_table).
  ASSIGN lt_tmp->* TO <lt_tmp> .
  CREATE DATA line LIKE LINE OF <lt_tmp>.
  ASSIGN line->* TO <wa>.
  SELECT * FROM (p_table) INTO TABLE <lt_tmp>.
  IF sy-subrc = 0.
    LOOP AT <lt_tmp> ASSIGNING <wa>.
      DO.
        ASSIGN COMPONENT  sy-index
           OF STRUCTURE <wa> TO <dyn_field>.
        IF sy-subrc NE 0.
          EXIT.
        ENDIF.
        IF sy-index = 1.
          WRITE:/ <dyn_field>.
        ELSE.
          WRITE: <dyn_field>.
        ENDIF.
      ENDDO.
    ENDLOOP.
  ENDIF.
Cheerz
Ram