ABAP Select data from SAP table RJKU008 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJKU008 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 RJKU008. 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 RJKU008 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_RJKU008 TYPE STANDARD TABLE OF RJKU008,
      WA_RJKU008 TYPE RJKU008,
      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: <RJKU008> TYPE RJKU008.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJKU008.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJKU008
  INTO TABLE IT_RJKU008.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJKU008
*  INTO TABLE @DATA(IT_RJKU0082).
*--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_RJKU008 INDEX 1 INTO DATA(WA_RJKU0082).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJKU008 ASSIGNING <RJKU008>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJKU008>-VBELN = 1.
<RJKU008>-REFBELEG = 1.
<RJKU008>-SATZART = 1.
<RJKU008>-GPNR_WE = 1.
<RJKU008>-BEZIRK = 1.

ENDLOOP.

LOOP AT IT_RJKU008 INTO WA_RJKU008.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJKU008-DRERZ, sy-vline,
  WA_RJKU008-PVA, sy-vline,
  WA_RJKU008-BEZUGSTYP, sy-vline,
  WA_RJKU008-LIEFERART, sy-vline,
  WA_RJKU008-GUELTIGVON, sy-vline,
  WA_RJKU008-GUELTIGBIS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJKU008 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_RJKU008 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_RJKU008 INTO WA_RJKU008.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJKU008-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKU008-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GPNR_WE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJKU008-GPNR_WE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKU008-GPNR_WE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BEZIRK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJKU008-BEZIRK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKU008-BEZIRK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DRERZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJKU008-DRERZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKU008-DRERZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PVA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJKU008-PVA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKU008-PVA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL_L
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJKU008-KOSTL_L
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKU008-KOSTL_L.
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_RJKU008_STR, 
VBELN TYPE STRING,
REFBELEG TYPE STRING,
SATZART TYPE STRING,
GPNR_WE TYPE STRING,
BEZIRK TYPE STRING,
DRERZ TYPE STRING,
PVA TYPE STRING,
BEZUGSTYP TYPE STRING,
LIEFERART TYPE STRING,
GUELTIGVON TYPE STRING,
GUELTIGBIS TYPE STRING,
BEZUGGRD TYPE STRING,
IVWKN TYPE STRING,
VKBURZUS TYPE STRING,
LIEFXUHR TYPE STRING,
KONDA TYPE STRING,
KDGRP TYPE STRING,
PLTYP TYPE STRING,
XLOGO TYPE STRING,
KOSTL_L TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJKU008_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_RJKU008_STR-VBELN sy-vline 
WA_RJKU008_STR-REFBELEG sy-vline 
WA_RJKU008_STR-SATZART sy-vline 
WA_RJKU008_STR-GPNR_WE sy-vline 
WA_RJKU008_STR-BEZIRK sy-vline 
WA_RJKU008_STR-DRERZ sy-vline 
WA_RJKU008_STR-PVA sy-vline 
WA_RJKU008_STR-BEZUGSTYP sy-vline 
WA_RJKU008_STR-LIEFERART sy-vline 
WA_RJKU008_STR-GUELTIGVON sy-vline 
WA_RJKU008_STR-GUELTIGBIS sy-vline 
WA_RJKU008_STR-BEZUGGRD sy-vline 
WA_RJKU008_STR-IVWKN sy-vline 
WA_RJKU008_STR-VKBURZUS sy-vline 
WA_RJKU008_STR-LIEFXUHR sy-vline 
WA_RJKU008_STR-KONDA sy-vline 
WA_RJKU008_STR-KDGRP sy-vline 
WA_RJKU008_STR-PLTYP sy-vline 
WA_RJKU008_STR-XLOGO sy-vline 
WA_RJKU008_STR-KOSTL_L sy-vline      INTO ld_text SEPARATED BY SPACE.

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