ABAP Select data from SAP table J_1UFDI_XMLFLOW_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_1UFDI_XMLFLOW_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_1UFDI_XMLFLOW_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_1UFDI_XMLFLOW_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_1UFDI_XMLFLOW_ITEM TYPE STANDARD TABLE OF J_1UFDI_XMLFLOW_ITEM,
      WA_J_1UFDI_XMLFLOW_ITEM TYPE J_1UFDI_XMLFLOW_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_1UFDI_XMLFLOW_ITEM> TYPE J_1UFDI_XMLFLOW_ITEM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1UFDI_XMLFLOW_ITEM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1UFDI_XMLFLOW_ITEM
  INTO TABLE IT_J_1UFDI_XMLFLOW_ITEM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1UFDI_XMLFLOW_ITEM
*  INTO TABLE @DATA(IT_J_1UFDI_XMLFLOW_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_1UFDI_XMLFLOW_ITEM INDEX 1 INTO DATA(WA_J_1UFDI_XMLFLOW_ITEM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1UFDI_XMLFLOW_ITEM ASSIGNING <J_1UFDI_XMLFLOW_ITEM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1UFDI_XMLFLOW_ITEM>-STATUS = 1.
<J_1UFDI_XMLFLOW_ITEM>-ITEM_STATUS = 1.
<J_1UFDI_XMLFLOW_ITEM>-POS = 1.
<J_1UFDI_XMLFLOW_ITEM>-POS_ORIG = 1.
<J_1UFDI_XMLFLOW_ITEM>-TAX_RATE = 1.

ENDLOOP.

LOOP AT IT_J_1UFDI_XMLFLOW_ITEM INTO WA_J_1UFDI_XMLFLOW_ITEM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1UFDI_XMLFLOW_ITEM-KVED, sy-vline,
  WA_J_1UFDI_XMLFLOW_ITEM-IMPORT_FLAG, sy-vline,
  WA_J_1UFDI_XMLFLOW_ITEM-SERV_CODE, sy-vline,
  WA_J_1UFDI_XMLFLOW_ITEM-MAT_NAME, sy-vline,
  WA_J_1UFDI_XMLFLOW_ITEM-UOM, sy-vline,
  WA_J_1UFDI_XMLFLOW_ITEM-UOM_CODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1UFDI_XMLFLOW_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_1UFDI_XMLFLOW_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_1UFDI_XMLFLOW_ITEM INTO WA_J_1UFDI_XMLFLOW_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 AC132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_J_1UFDI_XMLFLOW_ITEM-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UFDI_XMLFLOW_ITEM-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UFDI_XMLFLOW_ITEM-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UFDI_XMLFLOW_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_1UFDI_XMLFLOW_ITEM-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UFDI_XMLFLOW_ITEM-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_1UFDI_XMLFLOW_ITEM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UFDI_XMLFLOW_ITEM-MATNR.
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_1UFDI_XMLFLOW_ITEM_STR, 
STATUS TYPE STRING,
ITEM_STATUS TYPE STRING,
POS TYPE STRING,
POS_ORIG TYPE STRING,
TAX_RATE TYPE STRING,
KVED TYPE STRING,
IMPORT_FLAG TYPE STRING,
SERV_CODE TYPE STRING,
MAT_NAME TYPE STRING,
UOM TYPE STRING,
UOM_CODE TYPE STRING,
COR_REASON TYPE STRING,
DMBTR TYPE STRING,
QUANT_Q TYPE STRING,
QUANT_P TYPE STRING,
PRICE TYPE STRING,
DESCR TYPE STRING,
TECH_ITEM_KEY TYPE STRING,
TECH_MSG_DATA TYPE STRING,
MSGID TYPE STRING,
MSGTY TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
INN TYPE STRING,
NAME TYPE STRING,
XML_DATE TYPE STRING,
XML_NUM TYPE STRING,
XBLNR TYPE STRING,
DOCTYP TYPE STRING,
BUDAT TYPE STRING,
COR_RSN_TXT TYPE STRING,
MATNR TYPE STRING,
TECH_CELLTAB TYPE STRING,
TECH_SIGN_CHANGED TYPE STRING,
TECH_CONVERTED TYPE STRING,
TECH_DELTAVIEW_ITEM TYPE STRING,
TECH_ROW_TYPE TYPE STRING,
GROUP_CORR TYPE STRING,
COR_RSN_CODE TYPE STRING,
TAX_AMOUNT TYPE STRING,
TAX_RATE4CALC TYPE STRING,
TECH_NOT_REGISTERED TYPE STRING,
TECH_KVED_OLD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1UFDI_XMLFLOW_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_1UFDI_XMLFLOW_ITEM_STR-STATUS sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-ITEM_STATUS sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-POS sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-POS_ORIG sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-TAX_RATE sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-KVED sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-IMPORT_FLAG sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-SERV_CODE sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-MAT_NAME sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-UOM sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-UOM_CODE sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-COR_REASON sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-DMBTR sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-QUANT_Q sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-QUANT_P sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-PRICE sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-DESCR sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-TECH_ITEM_KEY sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-TECH_MSG_DATA sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-MSGID sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-MSGTY sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-MSGNO sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-MSGV1 sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-MSGV2 sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-MSGV3 sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-MSGV4 sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-BUKRS sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-BELNR sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-GJAHR sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-INN sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-NAME sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-XML_DATE sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-XML_NUM sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-XBLNR sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-DOCTYP sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-BUDAT sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-COR_RSN_TXT sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-MATNR sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-TECH_CELLTAB sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-TECH_SIGN_CHANGED sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-TECH_CONVERTED sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-TECH_DELTAVIEW_ITEM sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-TECH_ROW_TYPE sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-GROUP_CORR sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-COR_RSN_CODE sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-TAX_AMOUNT sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-TAX_RATE4CALC sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-TECH_NOT_REGISTERED sy-vline 
WA_J_1UFDI_XMLFLOW_ITEM_STR-TECH_KVED_OLD sy-vline      INTO ld_text SEPARATED BY SPACE.

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