ABAP Select data from SAP table RJKIF_R_ITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJKIF_R_ITEM
*  INTO TABLE @DATA(IT_RJKIF_R_ITEM2).
*--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_RJKIF_R_ITEM INDEX 1 INTO DATA(WA_RJKIF_R_ITEM2).


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

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

ENDLOOP.

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

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


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field VKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJKIF_R_ITEM-VKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKIF_R_ITEM-VKONT.
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_RJKIF_R_ITEM_STR, 
SATZART TYPE STRING,
REFBELEG TYPE STRING,
VBELN TYPE STRING,
POSEX 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,
XREMRECHT TYPE STRING,
REMART TYPE STRING,
REMWEISE TYPE STRING,
REMQUOTE TYPE STRING,
XMAXREMMG TYPE STRING,
RECHBEGINN TYPE STRING,
ZLSCH TYPE STRING,
VKBURZUS TYPE STRING,
XRECHDRUCK TYPE STRING,
JUEBART TYPE STRING,
BEABLST TYPE STRING,
VSAUSSTART TYPE STRING,
KUNWEFREMD TYPE STRING,
STCEG_L TYPE STRING,
STBFREI TYPE STRING,
LOGADR_WE TYPE STRING,
ADRESSVAR_WE TYPE STRING,
LOGADR_RE TYPE STRING,
ADRESSVAR_RE TYPE STRING,
XDELIV_FIXED TYPE STRING,
HEFTNUMVON TYPE STRING,
HEFTNUMBIS TYPE STRING,
VKONT TYPE STRING,
IBAN TYPE STRING,
MNDID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJKIF_R_ITEM_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_RJKIF_R_ITEM_STR-SATZART sy-vline 
WA_RJKIF_R_ITEM_STR-REFBELEG sy-vline 
WA_RJKIF_R_ITEM_STR-VBELN sy-vline 
WA_RJKIF_R_ITEM_STR-POSEX sy-vline 
WA_RJKIF_R_ITEM_STR-GPNR_WE sy-vline 
WA_RJKIF_R_ITEM_STR-DRERZ sy-vline 
WA_RJKIF_R_ITEM_STR-PVA sy-vline 
WA_RJKIF_R_ITEM_STR-BEZUGSTYP sy-vline 
WA_RJKIF_R_ITEM_STR-LIEFERART sy-vline 
WA_RJKIF_R_ITEM_STR-GUELTIGVON sy-vline 
WA_RJKIF_R_ITEM_STR-GUELTIGBIS sy-vline 
WA_RJKIF_R_ITEM_STR-BEZUGGRD sy-vline 
WA_RJKIF_R_ITEM_STR-IVWKN sy-vline 
WA_RJKIF_R_ITEM_STR-LIEFXUHR sy-vline 
WA_RJKIF_R_ITEM_STR-SBFREI sy-vline 
WA_RJKIF_R_ITEM_STR-KUENDGRD sy-vline 
WA_RJKIF_R_ITEM_STR-XLOGO sy-vline 
WA_RJKIF_R_ITEM_STR-KONDA sy-vline 
WA_RJKIF_R_ITEM_STR-KDGRP sy-vline 
WA_RJKIF_R_ITEM_STR-PLTYP sy-vline 
WA_RJKIF_R_ITEM_STR-PERFK sy-vline 
WA_RJKIF_R_ITEM_STR-PRBAS sy-vline 
WA_RJKIF_R_ITEM_STR-PRBAS_VK sy-vline 
WA_RJKIF_R_ITEM_STR-XSEPFKPOS sy-vline 
WA_RJKIF_R_ITEM_STR-GPNR_RG sy-vline 
WA_RJKIF_R_ITEM_STR-BANKS sy-vline 
WA_RJKIF_R_ITEM_STR-BANKL sy-vline 
WA_RJKIF_R_ITEM_STR-BANKN sy-vline 
WA_RJKIF_R_ITEM_STR-BKONT sy-vline 
WA_RJKIF_R_ITEM_STR-XEZER sy-vline 
WA_RJKIF_R_ITEM_STR-ZTERM sy-vline 
WA_RJKIF_R_ITEM_STR-GPNR_RE sy-vline 
WA_RJKIF_R_ITEM_STR-FAKSP sy-vline 
WA_RJKIF_R_ITEM_STR-FKDATVSYST sy-vline 
WA_RJKIF_R_ITEM_STR-XREMRECHT sy-vline 
WA_RJKIF_R_ITEM_STR-REMART sy-vline 
WA_RJKIF_R_ITEM_STR-REMWEISE sy-vline 
WA_RJKIF_R_ITEM_STR-REMQUOTE sy-vline 
WA_RJKIF_R_ITEM_STR-XMAXREMMG sy-vline 
WA_RJKIF_R_ITEM_STR-RECHBEGINN sy-vline 
WA_RJKIF_R_ITEM_STR-ZLSCH sy-vline 
WA_RJKIF_R_ITEM_STR-VKBURZUS sy-vline 
WA_RJKIF_R_ITEM_STR-XRECHDRUCK sy-vline 
WA_RJKIF_R_ITEM_STR-JUEBART sy-vline 
WA_RJKIF_R_ITEM_STR-BEABLST sy-vline 
WA_RJKIF_R_ITEM_STR-VSAUSSTART sy-vline 
WA_RJKIF_R_ITEM_STR-KUNWEFREMD sy-vline 
WA_RJKIF_R_ITEM_STR-STCEG_L sy-vline 
WA_RJKIF_R_ITEM_STR-STBFREI sy-vline 
WA_RJKIF_R_ITEM_STR-LOGADR_WE sy-vline 
WA_RJKIF_R_ITEM_STR-ADRESSVAR_WE sy-vline 
WA_RJKIF_R_ITEM_STR-LOGADR_RE sy-vline 
WA_RJKIF_R_ITEM_STR-ADRESSVAR_RE sy-vline 
WA_RJKIF_R_ITEM_STR-XDELIV_FIXED sy-vline 
WA_RJKIF_R_ITEM_STR-HEFTNUMVON sy-vline 
WA_RJKIF_R_ITEM_STR-HEFTNUMBIS sy-vline 
WA_RJKIF_R_ITEM_STR-VKONT sy-vline 
WA_RJKIF_R_ITEM_STR-IBAN sy-vline 
WA_RJKIF_R_ITEM_STR-MNDID sy-vline      INTO ld_text SEPARATED BY SPACE.

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