ABAP Select data from SAP table J_3RFSEC_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3RFSEC_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 J_3RFSEC_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 J_3RFSEC_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_J_3RFSEC_ITEM TYPE STANDARD TABLE OF J_3RFSEC_ITEM,
      WA_J_3RFSEC_ITEM TYPE J_3RFSEC_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: <J_3RFSEC_ITEM> TYPE J_3RFSEC_ITEM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3RFSEC_ITEM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3RFSEC_ITEM
  INTO TABLE IT_J_3RFSEC_ITEM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3RFSEC_ITEM
*  INTO TABLE @DATA(IT_J_3RFSEC_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_J_3RFSEC_ITEM INDEX 1 INTO DATA(WA_J_3RFSEC_ITEM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3RFSEC_ITEM ASSIGNING <J_3RFSEC_ITEM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3RFSEC_ITEM>-MANDT = 1.
<J_3RFSEC_ITEM>-BUKRS = 1.
<J_3RFSEC_ITEM>-BELNR = 1.
<J_3RFSEC_ITEM>-GJAHR = 1.
<J_3RFSEC_ITEM>-BUZEI = 1.

ENDLOOP.

LOOP AT IT_J_3RFSEC_ITEM INTO WA_J_3RFSEC_ITEM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3RFSEC_ITEM-ZBUKR, sy-vline,
  WA_J_3RFSEC_ITEM-ZBELN, sy-vline,
  WA_J_3RFSEC_ITEM-ZGJAH, sy-vline,
  WA_J_3RFSEC_ITEM-ZBUZE, sy-vline,
  WA_J_3RFSEC_ITEM-CBELN, sy-vline,
  WA_J_3RFSEC_ITEM-CGJAH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3RFSEC_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_J_3RFSEC_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_J_3RFSEC_ITEM INTO WA_J_3RFSEC_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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ZBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-ZBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-ZBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field ZGJAH
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-ZGJAH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-ZGJAH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-CBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-CBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field CGJAH
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-CGJAH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-CGJAH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT_TO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-HKONT_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-HKONT_TO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC112, internal->external for field KBETR
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-KBETR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-KBETR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field HWBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-HWBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-HWBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field FWBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-FWBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-FWBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field HWBAS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-HWBAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-HWBAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field FWBAS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-FWBAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-FWBAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field HWSTE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-HWSTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-HWSTE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field FWSTE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-FWSTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-FWSTE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-TBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-TBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field TGJAH
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-TGJAH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-TGJAH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-RBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-RBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field RGJAH
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFSEC_ITEM-RGJAH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFSEC_ITEM-RGJAH.
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_3RFSEC_ITEM_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
ZBUKR TYPE STRING,
ZBELN TYPE STRING,
ZGJAH TYPE STRING,
ZBUZE TYPE STRING,
CBELN TYPE STRING,
CGJAH TYPE STRING,
CBUZE TYPE STRING,
MWSKZ TYPE STRING,
MWSKZ_TO TYPE STRING,
SHKZG TYPE STRING,
HKONT TYPE STRING,
HKONT_TO TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
KBETR TYPE STRING,
HWBTR TYPE STRING,
FWBTR TYPE STRING,
HWBAS TYPE STRING,
FWBAS TYPE STRING,
HWSTE TYPE STRING,
FWSTE TYPE STRING,
LWAER TYPE STRING,
XAUSG TYPE STRING,
STMD1 TYPE STRING,
STMD2 TYPE STRING,
STMT2 TYPE STRING,
UMSKZ TYPE STRING,
TBELN TYPE STRING,
TGJAH TYPE STRING,
RBELN TYPE STRING,
RGJAH TYPE STRING,
LINE_TYPE TYPE STRING,
REFERENCE TYPE STRING,
EVENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3RFSEC_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_J_3RFSEC_ITEM_STR-MANDT sy-vline 
WA_J_3RFSEC_ITEM_STR-BUKRS sy-vline 
WA_J_3RFSEC_ITEM_STR-BELNR sy-vline 
WA_J_3RFSEC_ITEM_STR-GJAHR sy-vline 
WA_J_3RFSEC_ITEM_STR-BUZEI sy-vline 
WA_J_3RFSEC_ITEM_STR-ZBUKR sy-vline 
WA_J_3RFSEC_ITEM_STR-ZBELN sy-vline 
WA_J_3RFSEC_ITEM_STR-ZGJAH sy-vline 
WA_J_3RFSEC_ITEM_STR-ZBUZE sy-vline 
WA_J_3RFSEC_ITEM_STR-CBELN sy-vline 
WA_J_3RFSEC_ITEM_STR-CGJAH sy-vline 
WA_J_3RFSEC_ITEM_STR-CBUZE sy-vline 
WA_J_3RFSEC_ITEM_STR-MWSKZ sy-vline 
WA_J_3RFSEC_ITEM_STR-MWSKZ_TO sy-vline 
WA_J_3RFSEC_ITEM_STR-SHKZG sy-vline 
WA_J_3RFSEC_ITEM_STR-HKONT sy-vline 
WA_J_3RFSEC_ITEM_STR-HKONT_TO sy-vline 
WA_J_3RFSEC_ITEM_STR-LIFNR sy-vline 
WA_J_3RFSEC_ITEM_STR-KUNNR sy-vline 
WA_J_3RFSEC_ITEM_STR-KBETR sy-vline 
WA_J_3RFSEC_ITEM_STR-HWBTR sy-vline 
WA_J_3RFSEC_ITEM_STR-FWBTR sy-vline 
WA_J_3RFSEC_ITEM_STR-HWBAS sy-vline 
WA_J_3RFSEC_ITEM_STR-FWBAS sy-vline 
WA_J_3RFSEC_ITEM_STR-HWSTE sy-vline 
WA_J_3RFSEC_ITEM_STR-FWSTE sy-vline 
WA_J_3RFSEC_ITEM_STR-LWAER sy-vline 
WA_J_3RFSEC_ITEM_STR-XAUSG sy-vline 
WA_J_3RFSEC_ITEM_STR-STMD1 sy-vline 
WA_J_3RFSEC_ITEM_STR-STMD2 sy-vline 
WA_J_3RFSEC_ITEM_STR-STMT2 sy-vline 
WA_J_3RFSEC_ITEM_STR-UMSKZ sy-vline 
WA_J_3RFSEC_ITEM_STR-TBELN sy-vline 
WA_J_3RFSEC_ITEM_STR-TGJAH sy-vline 
WA_J_3RFSEC_ITEM_STR-RBELN sy-vline 
WA_J_3RFSEC_ITEM_STR-RGJAH sy-vline 
WA_J_3RFSEC_ITEM_STR-LINE_TYPE sy-vline 
WA_J_3RFSEC_ITEM_STR-REFERENCE sy-vline 
WA_J_3RFSEC_ITEM_STR-EVENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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