ABAP Select data from SAP table J_3RKTBL_KRP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3RKTBL_KRP 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 J_3RKTBL_KRP. 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 J_3RKTBL_KRP 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_J_3RKTBL_KRP TYPE STANDARD TABLE OF J_3RKTBL_KRP,
      WA_J_3RKTBL_KRP TYPE J_3RKTBL_KRP,
      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: <J_3RKTBL_KRP> TYPE J_3RKTBL_KRP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3RKTBL_KRP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3RKTBL_KRP
  INTO TABLE IT_J_3RKTBL_KRP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3RKTBL_KRP
*  INTO TABLE @DATA(IT_J_3RKTBL_KRP2).
*--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_J_3RKTBL_KRP INDEX 1 INTO DATA(WA_J_3RKTBL_KRP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3RKTBL_KRP ASSIGNING <J_3RKTBL_KRP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3RKTBL_KRP>-MANDT = 1.
<J_3RKTBL_KRP>-BUKRS = 1.
<J_3RKTBL_KRP>-BELNR = 1.
<J_3RKTBL_KRP>-GJAHR = 1.
<J_3RKTBL_KRP>-BUZEID = 1.

ENDLOOP.

LOOP AT IT_J_3RKTBL_KRP INTO WA_J_3RKTBL_KRP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3RKTBL_KRP-BUZEIK, sy-vline,
  WA_J_3RKTBL_KRP-ADDD, sy-vline,
  WA_J_3RKTBL_KRP-ADDK, sy-vline,
  WA_J_3RKTBL_KRP-NPDDI, sy-vline,
  WA_J_3RKTBL_KRP-NPDKI, sy-vline,
  WA_J_3RKTBL_KRP-BLART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3RKTBL_KRP 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_J_3RKTBL_KRP 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_J_3RKTBL_KRP INTO WA_J_3RKTBL_KRP.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RKTBL_KRP-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RKTBL_KRP-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RKTBL_KRP-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RKTBL_KRP-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DEBET
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RKTBL_KRP-DEBET
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RKTBL_KRP-DEBET.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADEBET
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RKTBL_KRP-ADEBET
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RKTBL_KRP-ADEBET.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KREDIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RKTBL_KRP-KREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RKTBL_KRP-KREDIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AKREDIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RKTBL_KRP-AKREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RKTBL_KRP-AKREDIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_3RKTBL_KRP-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RKTBL_KRP-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_3RKTBL_KRP-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RKTBL_KRP-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBE2
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_3RKTBL_KRP-DMBE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RKTBL_KRP-DMBE2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBE3
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_3RKTBL_KRP-DMBE3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RKTBL_KRP-DMBE3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTRD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RKTBL_KRP-PRCTRD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RKTBL_KRP-PRCTRD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTRK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RKTBL_KRP-PRCTRK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RKTBL_KRP-PRCTRK.
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_J_3RKTBL_KRP_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEID TYPE STRING,
BUZEIK TYPE STRING,
ADDD TYPE STRING,
ADDK TYPE STRING,
NPDDI TYPE STRING,
NPDKI TYPE STRING,
BLART TYPE STRING,
BUDAT TYPE STRING,
MONAT TYPE STRING,
XBLNR TYPE STRING,
KOARTD TYPE STRING,
DEBET TYPE STRING,
ADEBET TYPE STRING,
XNEGPD TYPE STRING,
KOARTK TYPE STRING,
KREDIT TYPE STRING,
AKREDIT TYPE STRING,
XNEGPK TYPE STRING,
DMBTR TYPE STRING,
HWAER TYPE STRING,
WRBTR TYPE STRING,
WAERS TYPE STRING,
DMBE2 TYPE STRING,
HWAE2 TYPE STRING,
DMBE3 TYPE STRING,
HWAE3 TYPE STRING,
ITYPE TYPE STRING,
USNAM TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
CODEPOS TYPE STRING,
GSBERD TYPE STRING,
GSBERK TYPE STRING,
PRCTRD TYPE STRING,
PRCTRK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3RKTBL_KRP_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_J_3RKTBL_KRP_STR-MANDT sy-vline 
WA_J_3RKTBL_KRP_STR-BUKRS sy-vline 
WA_J_3RKTBL_KRP_STR-BELNR sy-vline 
WA_J_3RKTBL_KRP_STR-GJAHR sy-vline 
WA_J_3RKTBL_KRP_STR-BUZEID sy-vline 
WA_J_3RKTBL_KRP_STR-BUZEIK sy-vline 
WA_J_3RKTBL_KRP_STR-ADDD sy-vline 
WA_J_3RKTBL_KRP_STR-ADDK sy-vline 
WA_J_3RKTBL_KRP_STR-NPDDI sy-vline 
WA_J_3RKTBL_KRP_STR-NPDKI sy-vline 
WA_J_3RKTBL_KRP_STR-BLART sy-vline 
WA_J_3RKTBL_KRP_STR-BUDAT sy-vline 
WA_J_3RKTBL_KRP_STR-MONAT sy-vline 
WA_J_3RKTBL_KRP_STR-XBLNR sy-vline 
WA_J_3RKTBL_KRP_STR-KOARTD sy-vline 
WA_J_3RKTBL_KRP_STR-DEBET sy-vline 
WA_J_3RKTBL_KRP_STR-ADEBET sy-vline 
WA_J_3RKTBL_KRP_STR-XNEGPD sy-vline 
WA_J_3RKTBL_KRP_STR-KOARTK sy-vline 
WA_J_3RKTBL_KRP_STR-KREDIT sy-vline 
WA_J_3RKTBL_KRP_STR-AKREDIT sy-vline 
WA_J_3RKTBL_KRP_STR-XNEGPK sy-vline 
WA_J_3RKTBL_KRP_STR-DMBTR sy-vline 
WA_J_3RKTBL_KRP_STR-HWAER sy-vline 
WA_J_3RKTBL_KRP_STR-WRBTR sy-vline 
WA_J_3RKTBL_KRP_STR-WAERS sy-vline 
WA_J_3RKTBL_KRP_STR-DMBE2 sy-vline 
WA_J_3RKTBL_KRP_STR-HWAE2 sy-vline 
WA_J_3RKTBL_KRP_STR-DMBE3 sy-vline 
WA_J_3RKTBL_KRP_STR-HWAE3 sy-vline 
WA_J_3RKTBL_KRP_STR-ITYPE sy-vline 
WA_J_3RKTBL_KRP_STR-USNAM sy-vline 
WA_J_3RKTBL_KRP_STR-CPUDT sy-vline 
WA_J_3RKTBL_KRP_STR-CPUTM sy-vline 
WA_J_3RKTBL_KRP_STR-CODEPOS sy-vline 
WA_J_3RKTBL_KRP_STR-GSBERD sy-vline 
WA_J_3RKTBL_KRP_STR-GSBERK sy-vline 
WA_J_3RKTBL_KRP_STR-PRCTRD sy-vline 
WA_J_3RKTBL_KRP_STR-PRCTRK sy-vline      INTO ld_text SEPARATED BY SPACE.

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