ABAP Select data from SAP table RJKSDVBAPKOM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJKSDVBAPKOM 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 RJKSDVBAPKOM. 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 RJKSDVBAPKOM 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_RJKSDVBAPKOM TYPE STANDARD TABLE OF RJKSDVBAPKOM,
      WA_RJKSDVBAPKOM TYPE RJKSDVBAPKOM,
      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: <RJKSDVBAPKOM> TYPE RJKSDVBAPKOM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJKSDVBAPKOM
*  INTO TABLE @DATA(IT_RJKSDVBAPKOM2).
*--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_RJKSDVBAPKOM INDEX 1 INTO DATA(WA_RJKSDVBAPKOM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJKSDVBAPKOM>-POSNR = 1.
<RJKSDVBAPKOM>-ISMCIRC_CAT = 1.
<RJKSDVBAPKOM>-ISMRETURNPERCENT = 1.
<RJKSDVBAPKOM>-IDCODETYPE = 1.
<RJKSDVBAPKOM>-ISMSDBEZIRK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJKSDVBAPKOM-ISMNOTINTERRUPT, sy-vline,
  WA_RJKSDVBAPKOM-ISMROUNDALLOWED, sy-vline,
  WA_RJKSDVBAPKOM-ISMPREVBELN, sy-vline,
  WA_RJKSDVBAPKOM-ISMPREPOSNR, sy-vline,
  WA_RJKSDVBAPKOM-ISMDISPLAY, sy-vline,
  WA_RJKSDVBAPKOM-ISMSTARTORDER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJKSDVBAPKOM 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_RJKSDVBAPKOM 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_RJKSDVBAPKOM INTO WA_RJKSDVBAPKOM.


*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 JPICT, internal->external for field IDCODETYPE
CALL FUNCTION 'CONVERSION_EXIT_JPICT_OUTPUT'
  EXPORTING
    input =                      WA_RJKSDVBAPKOM-IDCODETYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKSDVBAPKOM-IDCODETYPE.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field ISMCONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJKSDVBAPKOM-ISMCONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKSDVBAPKOM-ISMCONTRACT.
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_RJKSDVBAPKOM_STR, 
POSNR TYPE STRING,
ISMCIRC_CAT TYPE STRING,
ISMRETURNPERCENT TYPE STRING,
IDCODETYPE TYPE STRING,
ISMSDBEZIRK TYPE STRING,
ISMNOTINTERRUPT TYPE STRING,
ISMROUNDALLOWED TYPE STRING,
ISMPREVBELN TYPE STRING,
ISMPREPOSNR TYPE STRING,
ISMDISPLAY TYPE STRING,
ISMSTARTORDER TYPE STRING,
ISMSTARTITEM TYPE STRING,
ISMCONTRACT TYPE STRING,
ISMCONTRACTITEM TYPE STRING,
ISMNOCONITEM TYPE STRING,
ISMACTIVATION TYPE STRING,
ISMVIABILITY TYPE STRING,
ISMSBRCONTRACT TYPE STRING,
ISMXNORETURN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJKSDVBAPKOM_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_RJKSDVBAPKOM_STR-POSNR sy-vline 
WA_RJKSDVBAPKOM_STR-ISMCIRC_CAT sy-vline 
WA_RJKSDVBAPKOM_STR-ISMRETURNPERCENT sy-vline 
WA_RJKSDVBAPKOM_STR-IDCODETYPE sy-vline 
WA_RJKSDVBAPKOM_STR-ISMSDBEZIRK sy-vline 
WA_RJKSDVBAPKOM_STR-ISMNOTINTERRUPT sy-vline 
WA_RJKSDVBAPKOM_STR-ISMROUNDALLOWED sy-vline 
WA_RJKSDVBAPKOM_STR-ISMPREVBELN sy-vline 
WA_RJKSDVBAPKOM_STR-ISMPREPOSNR sy-vline 
WA_RJKSDVBAPKOM_STR-ISMDISPLAY sy-vline 
WA_RJKSDVBAPKOM_STR-ISMSTARTORDER sy-vline 
WA_RJKSDVBAPKOM_STR-ISMSTARTITEM sy-vline 
WA_RJKSDVBAPKOM_STR-ISMCONTRACT sy-vline 
WA_RJKSDVBAPKOM_STR-ISMCONTRACTITEM sy-vline 
WA_RJKSDVBAPKOM_STR-ISMNOCONITEM sy-vline 
WA_RJKSDVBAPKOM_STR-ISMACTIVATION sy-vline 
WA_RJKSDVBAPKOM_STR-ISMVIABILITY sy-vline 
WA_RJKSDVBAPKOM_STR-ISMSBRCONTRACT sy-vline 
WA_RJKSDVBAPKOM_STR-ISMXNORETURN sy-vline      INTO ld_text SEPARATED BY SPACE.

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