如何获取参数值并将其插入查询 SAP ABAP

Question

I have one problem, i make Report with Parameters, and than i have to take value from one parameter and isert it into Select query, but my Value is always null, wenn i make default value befor report start all functionert.

when i tried this all is okay

PARAMETERS p_name TYPE char30.

AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_name.

p_name = 'ARNOLD'.

SELECT * FROM zyy_pat_final_db INTO TABLE tb_pt WHERE NAME = p_name.

CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
    EXPORTING
*     DDIC_STRUCTURE  = ' '
      retfield        = 'name'
*     PVALKEY         = ' '
      dynpprog        = sy-repid
      dynpnr          = sy-dynnr
      dynprofield     = 'p_name'
*     STEPL           = 0
*     WINDOW_TITLE    =
*     VALUE           = ' '
      value_org       = 'S'
*     MULTIPLE_CHOICE = ' '
*     DISPLAY         = ' '
*     CALLBACK_PROGRAM       = ' '
*     CALLBACK_FORM   = ' '
*     CALLBACK_METHOD =
*     MARK_TAB        =
* IMPORTING
*     USER_RESET      =
    TABLES
      value_tab       = tb_pt
*     FIELD_TAB       =
*     RETURN_TAB      =
*     DYNPFLD_MAPPING =
* EXCEPTIONS
*      parameter_error = 1
*      no_values_found = 2
*      OTHERS          = 3.
*  IF sy-subrc <> 0.
* Implement suitable error handling here.
*  ENDIF.

I do not know, why do I get no results without my input, what I've written in code

PARAMETERS p_name TYPE char30.

AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_name.

********p_name = 'ARNOLD'.

SELECT * FROM zyy_pat_final_db INTO TABLE tb_pt WHERE NAME = p_name.

Answer 1

Actually the requirement is not that clear first: and if the selection parameter needs the value for select query then the function module used will not help... try with this code given

 BEGIN OF ty_mat,
    sign(1)   TYPE c,
    option(2) TYPE c,
    XXXXX(low)    TYPE ANY,
    YYYYY(high)   TYPE ANY,
  END OF ty_mat.

  DATA:  it_mat             TYPE TABLE OF      ty_mat,
         wa_mat             TYPE               ty_mat.

  LOOP AT it_TABLE INTO wa_TABLE.          "added
  wa_sam1-sign = 'I'.
  wa_sam1-option  = 'EQ' .
  wa_sam1-low = "aNY VALUE".
  APPEND wa_MAT TO it_mat.
  ENDLOOP.


and now pass it_mat to your select query with IN parameter...