ABAP Select data from SAP table RJHKOMFKE2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJHKOMFKE2 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 RJHKOMFKE2. 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 RJHKOMFKE2 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_RJHKOMFKE2 TYPE STANDARD TABLE OF RJHKOMFKE2,
      WA_RJHKOMFKE2 TYPE RJHKOMFKE2,
      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: <RJHKOMFKE2> TYPE RJHKOMFKE2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJHKOMFKE2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJHKOMFKE2
  INTO TABLE IT_RJHKOMFKE2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJHKOMFKE2
*  INTO TABLE @DATA(IT_RJHKOMFKE22).
*--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_RJHKOMFKE2 INDEX 1 INTO DATA(WA_RJHKOMFKE22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJHKOMFKE2 ASSIGNING <RJHKOMFKE2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJHKOMFKE2>-VKORG_AUFT = 1.
<RJHKOMFKE2>-VTWEG = 1.
<RJHKOMFKE2>-SPART = 1.
<RJHKOMFKE2>-KALSM = 1.
<RJHKOMFKE2>-AUBEL = 1.

ENDLOOP.

LOOP AT IT_RJHKOMFKE2 INTO WA_RJHKOMFKE2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJHKOMFKE2-AUPOS, sy-vline,
  WA_RJHKOMFKE2-AUGRP, sy-vline,
  WA_RJHKOMFKE2-AUETE, sy-vline,
  WA_RJHKOMFKE2-BEINH, sy-vline,
  WA_RJHKOMFKE2-BEINH_BAS, sy-vline,
  WA_RJHKOMFKE2-INHK_TECH2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJHKOMFKE2 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_RJHKOMFKE2 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_RJHKOMFKE2 INTO WA_RJHKOMFKE2.


*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 AUBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-AUBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-AUBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BEINH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-BEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-BEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BEINH_BAS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-BEINH_BAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-BEINH_BAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INHK_TECH2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-INHK_TECH2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-INHK_TECH2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DRERZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-DRERZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-DRERZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PVA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-PVA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-PVA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DIENSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-DIENSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-DIENSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VGBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-VGBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-VGBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STAFO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-STAFO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-STAFO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field STCUR
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-STCUR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-STCUR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RK_AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-RK_AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-RK_AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RK_POSNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-RK_POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-RK_POSNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL_R2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHKOMFKE2-KOSTL_R2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHKOMFKE2-KOSTL_R2.
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_RJHKOMFKE2_STR, 
VKORG_AUFT TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
KALSM TYPE STRING,
AUBEL TYPE STRING,
AUPOS TYPE STRING,
AUGRP TYPE STRING,
AUETE TYPE STRING,
BEINH TYPE STRING,
BEINH_BAS TYPE STRING,
INHK_TECH2 TYPE STRING,
DRERZ TYPE STRING,
PVA TYPE STRING,
VAVTYP TYPE STRING,
DIENSTL TYPE STRING,
DITYP TYPE STRING,
MATNR TYPE STRING,
FBUDA TYPE STRING,
FSART TYPE STRING,
KTGRM TYPE STRING,
KTGRB TYPE STRING,
KTGRP TYPE STRING,
PRSFD TYPE STRING,
PRSDT TYPE STRING,
SHKZG TYPE STRING,
FKIMG TYPE STRING,
MEINS TYPE STRING,
VRKME TYPE STRING,
BRGEW TYPE STRING,
NTGEW TYPE STRING,
GEWEI TYPE STRING,
VGBEL TYPE STRING,
VGPOS TYPE STRING,
VGETE TYPE STRING,
VGTYP TYPE STRING,
VGOBJ TYPE STRING,
VGFKTYP TYPE STRING,
PSTYV TYPE STRING,
POSAR TYPE STRING,
ARKTX TYPE STRING,
TAXM1 TYPE STRING,
TAXM2 TYPE STRING,
TAXM3 TYPE STRING,
TAXM4 TYPE STRING,
TAXM5 TYPE STRING,
TAXM6 TYPE STRING,
TAXM7 TYPE STRING,
TAXM8 TYPE STRING,
TAXM9 TYPE STRING,
STGRB TYPE STRING,
STAFO TYPE STRING,
ELAND TYPE STRING,
ALAND TYPE STRING,
STCUR TYPE STRING,
AUFNR TYPE STRING,
GSBER TYPE STRING,
KOSTL TYPE STRING,
PRCTR TYPE STRING,
KOKRS TYPE STRING,
RK_AUFNR TYPE STRING,
RK_POSNR TYPE STRING,
KOSTL_R2 TYPE STRING,
KPOSN TYPE STRING,
ANZOB TYPE STRING,
KAPPLV TYPE STRING,
KALSMV TYPE STRING,
KPOSNV TYPE STRING,
NETWPV TYPE STRING,
FXMSG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJHKOMFKE2_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_RJHKOMFKE2_STR-VKORG_AUFT sy-vline 
WA_RJHKOMFKE2_STR-VTWEG sy-vline 
WA_RJHKOMFKE2_STR-SPART sy-vline 
WA_RJHKOMFKE2_STR-KALSM sy-vline 
WA_RJHKOMFKE2_STR-AUBEL sy-vline 
WA_RJHKOMFKE2_STR-AUPOS sy-vline 
WA_RJHKOMFKE2_STR-AUGRP sy-vline 
WA_RJHKOMFKE2_STR-AUETE sy-vline 
WA_RJHKOMFKE2_STR-BEINH sy-vline 
WA_RJHKOMFKE2_STR-BEINH_BAS sy-vline 
WA_RJHKOMFKE2_STR-INHK_TECH2 sy-vline 
WA_RJHKOMFKE2_STR-DRERZ sy-vline 
WA_RJHKOMFKE2_STR-PVA sy-vline 
WA_RJHKOMFKE2_STR-VAVTYP sy-vline 
WA_RJHKOMFKE2_STR-DIENSTL sy-vline 
WA_RJHKOMFKE2_STR-DITYP sy-vline 
WA_RJHKOMFKE2_STR-MATNR sy-vline 
WA_RJHKOMFKE2_STR-FBUDA sy-vline 
WA_RJHKOMFKE2_STR-FSART sy-vline 
WA_RJHKOMFKE2_STR-KTGRM sy-vline 
WA_RJHKOMFKE2_STR-KTGRB sy-vline 
WA_RJHKOMFKE2_STR-KTGRP sy-vline 
WA_RJHKOMFKE2_STR-PRSFD sy-vline 
WA_RJHKOMFKE2_STR-PRSDT sy-vline 
WA_RJHKOMFKE2_STR-SHKZG sy-vline 
WA_RJHKOMFKE2_STR-FKIMG sy-vline 
WA_RJHKOMFKE2_STR-MEINS sy-vline 
WA_RJHKOMFKE2_STR-VRKME sy-vline 
WA_RJHKOMFKE2_STR-BRGEW sy-vline 
WA_RJHKOMFKE2_STR-NTGEW sy-vline 
WA_RJHKOMFKE2_STR-GEWEI sy-vline 
WA_RJHKOMFKE2_STR-VGBEL sy-vline 
WA_RJHKOMFKE2_STR-VGPOS sy-vline 
WA_RJHKOMFKE2_STR-VGETE sy-vline 
WA_RJHKOMFKE2_STR-VGTYP sy-vline 
WA_RJHKOMFKE2_STR-VGOBJ sy-vline 
WA_RJHKOMFKE2_STR-VGFKTYP sy-vline 
WA_RJHKOMFKE2_STR-PSTYV sy-vline 
WA_RJHKOMFKE2_STR-POSAR sy-vline 
WA_RJHKOMFKE2_STR-ARKTX sy-vline 
WA_RJHKOMFKE2_STR-TAXM1 sy-vline 
WA_RJHKOMFKE2_STR-TAXM2 sy-vline 
WA_RJHKOMFKE2_STR-TAXM3 sy-vline 
WA_RJHKOMFKE2_STR-TAXM4 sy-vline 
WA_RJHKOMFKE2_STR-TAXM5 sy-vline 
WA_RJHKOMFKE2_STR-TAXM6 sy-vline 
WA_RJHKOMFKE2_STR-TAXM7 sy-vline 
WA_RJHKOMFKE2_STR-TAXM8 sy-vline 
WA_RJHKOMFKE2_STR-TAXM9 sy-vline 
WA_RJHKOMFKE2_STR-STGRB sy-vline 
WA_RJHKOMFKE2_STR-STAFO sy-vline 
WA_RJHKOMFKE2_STR-ELAND sy-vline 
WA_RJHKOMFKE2_STR-ALAND sy-vline 
WA_RJHKOMFKE2_STR-STCUR sy-vline 
WA_RJHKOMFKE2_STR-AUFNR sy-vline 
WA_RJHKOMFKE2_STR-GSBER sy-vline 
WA_RJHKOMFKE2_STR-KOSTL sy-vline 
WA_RJHKOMFKE2_STR-PRCTR sy-vline 
WA_RJHKOMFKE2_STR-KOKRS sy-vline 
WA_RJHKOMFKE2_STR-RK_AUFNR sy-vline 
WA_RJHKOMFKE2_STR-RK_POSNR sy-vline 
WA_RJHKOMFKE2_STR-KOSTL_R2 sy-vline 
WA_RJHKOMFKE2_STR-KPOSN sy-vline 
WA_RJHKOMFKE2_STR-ANZOB sy-vline 
WA_RJHKOMFKE2_STR-KAPPLV sy-vline 
WA_RJHKOMFKE2_STR-KALSMV sy-vline 
WA_RJHKOMFKE2_STR-KPOSNV sy-vline 
WA_RJHKOMFKE2_STR-NETWPV sy-vline 
WA_RJHKOMFKE2_STR-FXMSG sy-vline      INTO ld_text SEPARATED BY SPACE.

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