ABAP Select data from SAP table FKK_MAD_MAHN_462 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKK_MAD_MAHN_462 table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to FKK_MAD_MAHN_462. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the FKK_MAD_MAHN_462 table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_FKK_MAD_MAHN_462 TYPE STANDARD TABLE OF FKK_MAD_MAHN_462,
      WA_FKK_MAD_MAHN_462 TYPE FKK_MAD_MAHN_462,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <FKK_MAD_MAHN_462> TYPE FKK_MAD_MAHN_462.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FKK_MAD_MAHN_462.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FKK_MAD_MAHN_462
  INTO TABLE IT_FKK_MAD_MAHN_462.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_MAD_MAHN_462
*  INTO TABLE @DATA(IT_FKK_MAD_MAHN_4622).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_FKK_MAD_MAHN_462 INDEX 1 INTO DATA(WA_FKK_MAD_MAHN_4622).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FKK_MAD_MAHN_462 ASSIGNING <FKK_MAD_MAHN_462>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_MAD_MAHN_462>-VTREF = 1.
<FKK_MAD_MAHN_462>-XPRIN = 1.
<FKK_MAD_MAHN_462>-LAUFD = 1.
<FKK_MAD_MAHN_462>-LAUFI = 1.
<FKK_MAD_MAHN_462>-RDI = 1.

ENDLOOP.

LOOP AT IT_FKK_MAD_MAHN_462 INTO WA_FKK_MAD_MAHN_462.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_MAD_MAHN_462-REALPRINT, sy-vline,
  WA_FKK_MAD_MAHN_462-REPRINT, sy-vline,
  WA_FKK_MAD_MAHN_462-TESTPRINT, sy-vline,
  WA_FKK_MAD_MAHN_462-TDPAGESLCT, sy-vline,
  WA_FKK_MAD_MAHN_462-TDCOPIES, sy-vline,
  WA_FKK_MAD_MAHN_462-TDDEST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_MAD_MAHN_462 you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_FKK_MAD_MAHN_462 TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_FKK_MAD_MAHN_462 INTO WA_FKK_MAD_MAHN_462.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field VTREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_MAD_MAHN_462-VTREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_MAD_MAHN_462-VTREF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPDEV, internal->external for field TDDEST
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_FKK_MAD_MAHN_462-TDDEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_MAD_MAHN_462-TDDEST.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FKK_MAD_MAHN_462_STR, 
VTREF TYPE STRING,
XPRIN TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
RDI TYPE STRING,
REALPRINT TYPE STRING,
REPRINT TYPE STRING,
TESTPRINT TYPE STRING,
TDPAGESLCT TYPE STRING,
TDCOPIES TYPE STRING,
TDDEST TYPE STRING,
TDPRINTER TYPE STRING,
TDPREVIEW TYPE STRING,
TDNOPREV TYPE STRING,
TDNOPRINT TYPE STRING,
TDNEWID TYPE STRING,
TDDATASET TYPE STRING,
TDSUFFIX1 TYPE STRING,
TDSUFFIX2 TYPE STRING,
TDIMMED TYPE STRING,
TDDELETE TYPE STRING,
TDLIFETIME TYPE STRING,
TDSCHEDULE TYPE STRING,
TDSENDDATE TYPE STRING,
TDSENDTIME TYPE STRING,
TDTELELAND TYPE STRING,
TDTELENUM TYPE STRING,
TDTITLE TYPE STRING,
TDTEST TYPE STRING,
TDPROGRAM TYPE STRING,
TDSCRNPOS TYPE STRING,
TDCOVER TYPE STRING,
TDCOVTITLE TYPE STRING,
TDRECEIVER TYPE STRING,
TDDIVISION TYPE STRING,
TDAUTORITY TYPE STRING,
TDARMOD TYPE STRING,
TDIEXIT TYPE STRING,
TDGETOTF TYPE STRING,
TDFAXUSER TYPE STRING,
R_MAHNV TYPE STRING,
XDPRO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_MAD_MAHN_462_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_FKK_MAD_MAHN_462_STR-VTREF sy-vline 
WA_FKK_MAD_MAHN_462_STR-XPRIN sy-vline 
WA_FKK_MAD_MAHN_462_STR-LAUFD sy-vline 
WA_FKK_MAD_MAHN_462_STR-LAUFI sy-vline 
WA_FKK_MAD_MAHN_462_STR-RDI sy-vline 
WA_FKK_MAD_MAHN_462_STR-REALPRINT sy-vline 
WA_FKK_MAD_MAHN_462_STR-REPRINT sy-vline 
WA_FKK_MAD_MAHN_462_STR-TESTPRINT sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDPAGESLCT sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDCOPIES sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDDEST sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDPRINTER sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDPREVIEW sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDNOPREV sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDNOPRINT sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDNEWID sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDDATASET sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDSUFFIX1 sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDSUFFIX2 sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDIMMED sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDDELETE sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDLIFETIME sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDSCHEDULE sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDSENDDATE sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDSENDTIME sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDTELELAND sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDTELENUM sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDTITLE sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDTEST sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDPROGRAM sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDSCRNPOS sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDCOVER sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDCOVTITLE sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDRECEIVER sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDDIVISION sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDAUTORITY sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDARMOD sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDIEXIT sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDGETOTF sy-vline 
WA_FKK_MAD_MAHN_462_STR-TDFAXUSER sy-vline 
WA_FKK_MAD_MAHN_462_STR-R_MAHNV sy-vline 
WA_FKK_MAD_MAHN_462_STR-XDPRO sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.