ABAP Select data from SAP table RJKU006 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJKU006 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 RJKU006. 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 RJKU006 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_RJKU006 TYPE STANDARD TABLE OF RJKU006,
      WA_RJKU006 TYPE RJKU006,
      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: <RJKU006> TYPE RJKU006.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJKU006.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJKU006
  INTO TABLE IT_RJKU006.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJKU006
*  INTO TABLE @DATA(IT_RJKU0062).
*--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_RJKU006 INDEX 1 INTO DATA(WA_RJKU0062).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJKU006 ASSIGNING <RJKU006>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJKU006>-VBELN = 1.
<RJKU006>-REFBELEG = 1.
<RJKU006>-SATZART = 1.
<RJKU006>-GPNR_WE = 1.
<RJKU006>-DRERZ = 1.

ENDLOOP.

LOOP AT IT_RJKU006 INTO WA_RJKU006.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJKU006-PVA, sy-vline,
  WA_RJKU006-BEZUGSTYP, sy-vline,
  WA_RJKU006-LIEFERART, sy-vline,
  WA_RJKU006-GUELTIGVON, sy-vline,
  WA_RJKU006-GUELTIGBIS, sy-vline,
  WA_RJKU006-BEZUGGRD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJKU006 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_RJKU006 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_RJKU006 INTO WA_RJKU006.


*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_RJKU006-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKU006-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GPNR_WE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJKU006-GPNR_WE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKU006-GPNR_WE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DRERZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJKU006-DRERZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKU006-DRERZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PVA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJKU006-PVA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKU006-PVA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GPNR_RG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJKU006-GPNR_RG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKU006-GPNR_RG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GPNR_RE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJKU006-GPNR_RE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKU006-GPNR_RE.
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_RJKU006_STR, 
VBELN TYPE STRING,
REFBELEG TYPE STRING,
SATZART TYPE STRING,
GPNR_WE 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,
LIEFXUHR TYPE STRING,
SBFREI TYPE STRING,
KUENDGRD TYPE STRING,
XLOGO TYPE STRING,
KONDA TYPE STRING,
KDGRP TYPE STRING,
PLTYP TYPE STRING,
PERFK TYPE STRING,
PRBAS TYPE STRING,
PRBAS_VK TYPE STRING,
XSEPFKPOS TYPE STRING,
GPNR_RG TYPE STRING,
BANKS TYPE STRING,
BANKL TYPE STRING,
BANKN TYPE STRING,
BKONT TYPE STRING,
XEZER TYPE STRING,
ZTERM TYPE STRING,
GPNR_RE TYPE STRING,
FAKSP TYPE STRING,
FKDATVSYST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJKU006_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_RJKU006_STR-VBELN sy-vline 
WA_RJKU006_STR-REFBELEG sy-vline 
WA_RJKU006_STR-SATZART sy-vline 
WA_RJKU006_STR-GPNR_WE sy-vline 
WA_RJKU006_STR-DRERZ sy-vline 
WA_RJKU006_STR-PVA sy-vline 
WA_RJKU006_STR-BEZUGSTYP sy-vline 
WA_RJKU006_STR-LIEFERART sy-vline 
WA_RJKU006_STR-GUELTIGVON sy-vline 
WA_RJKU006_STR-GUELTIGBIS sy-vline 
WA_RJKU006_STR-BEZUGGRD sy-vline 
WA_RJKU006_STR-IVWKN sy-vline 
WA_RJKU006_STR-LIEFXUHR sy-vline 
WA_RJKU006_STR-SBFREI sy-vline 
WA_RJKU006_STR-KUENDGRD sy-vline 
WA_RJKU006_STR-XLOGO sy-vline 
WA_RJKU006_STR-KONDA sy-vline 
WA_RJKU006_STR-KDGRP sy-vline 
WA_RJKU006_STR-PLTYP sy-vline 
WA_RJKU006_STR-PERFK sy-vline 
WA_RJKU006_STR-PRBAS sy-vline 
WA_RJKU006_STR-PRBAS_VK sy-vline 
WA_RJKU006_STR-XSEPFKPOS sy-vline 
WA_RJKU006_STR-GPNR_RG sy-vline 
WA_RJKU006_STR-BANKS sy-vline 
WA_RJKU006_STR-BANKL sy-vline 
WA_RJKU006_STR-BANKN sy-vline 
WA_RJKU006_STR-BKONT sy-vline 
WA_RJKU006_STR-XEZER sy-vline 
WA_RJKU006_STR-ZTERM sy-vline 
WA_RJKU006_STR-GPNR_RE sy-vline 
WA_RJKU006_STR-FAKSP sy-vline 
WA_RJKU006_STR-FKDATVSYST sy-vline      INTO ld_text SEPARATED BY SPACE.

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