ABAP Select data from SAP table J_3RF_DIXML_DOCTYPE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3RF_DIXML_DOCTYPE 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_3RF_DIXML_DOCTYPE. 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_3RF_DIXML_DOCTYPE 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_3RF_DIXML_DOCTYPE TYPE STANDARD TABLE OF J_3RF_DIXML_DOCTYPE,
      WA_J_3RF_DIXML_DOCTYPE TYPE J_3RF_DIXML_DOCTYPE,
      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_3RF_DIXML_DOCTYPE> TYPE J_3RF_DIXML_DOCTYPE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3RF_DIXML_DOCTYPE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3RF_DIXML_DOCTYPE
  INTO TABLE IT_J_3RF_DIXML_DOCTYPE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3RF_DIXML_DOCTYPE
*  INTO TABLE @DATA(IT_J_3RF_DIXML_DOCTYPE2).
*--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_3RF_DIXML_DOCTYPE INDEX 1 INTO DATA(WA_J_3RF_DIXML_DOCTYPE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3RF_DIXML_DOCTYPE ASSIGNING <J_3RF_DIXML_DOCTYPE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3RF_DIXML_DOCTYPE>-KEY = 1.
<J_3RF_DIXML_DOCTYPE>-BUKRS = 1.
<J_3RF_DIXML_DOCTYPE>-GJAHR_IN = 1.
<J_3RF_DIXML_DOCTYPE>-NUM_IN = 1.
<J_3RF_DIXML_DOCTYPE>-BELNR_ORIG = 1.

ENDLOOP.

LOOP AT IT_J_3RF_DIXML_DOCTYPE INTO WA_J_3RF_DIXML_DOCTYPE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3RF_DIXML_DOCTYPE-GJAHR_ORIG, sy-vline,
  WA_J_3RF_DIXML_DOCTYPE-BELNR_CORR, sy-vline,
  WA_J_3RF_DIXML_DOCTYPE-GJAHR_CORR, sy-vline,
  WA_J_3RF_DIXML_DOCTYPE-REVNO, sy-vline,
  WA_J_3RF_DIXML_DOCTYPE-TYPE, sy-vline,
  WA_J_3RF_DIXML_DOCTYPE-LIFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3RF_DIXML_DOCTYPE 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_3RF_DIXML_DOCTYPE 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_3RF_DIXML_DOCTYPE INTO WA_J_3RF_DIXML_DOCTYPE.


*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 GJAHR, internal->external for field GJAHR_IN
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_DIXML_DOCTYPE-GJAHR_IN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_DIXML_DOCTYPE-GJAHR_IN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_ORIG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_DIXML_DOCTYPE-BELNR_ORIG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_DIXML_DOCTYPE-BELNR_ORIG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_ORIG
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_DIXML_DOCTYPE-GJAHR_ORIG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_DIXML_DOCTYPE-GJAHR_ORIG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_CORR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_DIXML_DOCTYPE-BELNR_CORR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_DIXML_DOCTYPE-BELNR_CORR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_CORR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_DIXML_DOCTYPE-GJAHR_CORR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_DIXML_DOCTYPE-GJAHR_CORR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_DIXML_DOCTYPE-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_DIXML_DOCTYPE-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_DIXML_DOCTYPE-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_DIXML_DOCTYPE-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_DIXML_DOCTYPE-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_DIXML_DOCTYPE-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_DIXML_DOCTYPE-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_DIXML_DOCTYPE-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_DIXML_DOCTYPE-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_DIXML_DOCTYPE-KUNNR.
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_3RF_DIXML_DOCTYPE_STR, 
KEY TYPE STRING,
BUKRS TYPE STRING,
GJAHR_IN TYPE STRING,
NUM_IN TYPE STRING,
BELNR_ORIG TYPE STRING,
GJAHR_ORIG TYPE STRING,
BELNR_CORR TYPE STRING,
GJAHR_CORR TYPE STRING,
REVNO TYPE STRING,
TYPE TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
FILEPROGVAR TYPE STRING,
FILEFORMVER TYPE STRING,
FILENAME TYPE STRING,
KND TYPE STRING,
TGKEY TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
NUM TYPE STRING,
DOC_TYPE TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
IZVPOL_RECV_FILE TYPE STRING,
UVUTOCH_RECV_FILE TYPE STRING,
PDPOL_RECV_FILE TYPE STRING,
SENDER_ID TYPE STRING,
RECEIVER_ID TYPE STRING,
ROSEU_SENDER_ID TYPE STRING,
ROSEU_RECEIVER_ID TYPE STRING,
ROSEU_FILEID TYPE STRING,
ROSEU_FILETYPE TYPE STRING,
ROSEU_FILENAME TYPE STRING,
KND_POK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3RF_DIXML_DOCTYPE_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_3RF_DIXML_DOCTYPE_STR-KEY sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-BUKRS sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-GJAHR_IN sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-NUM_IN sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-BELNR_ORIG sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-GJAHR_ORIG sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-BELNR_CORR sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-GJAHR_CORR sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-REVNO sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-TYPE sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-LIFNR sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-KUNNR sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-FILEPROGVAR sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-FILEFORMVER sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-FILENAME sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-KND sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-TGKEY sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-BUKRS sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-GJAHR sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-NUM sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-DOC_TYPE sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-LIFNR sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-KUNNR sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-IZVPOL_RECV_FILE sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-UVUTOCH_RECV_FILE sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-PDPOL_RECV_FILE sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-SENDER_ID sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-RECEIVER_ID sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-ROSEU_SENDER_ID sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-ROSEU_RECEIVER_ID sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-ROSEU_FILEID sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-ROSEU_FILETYPE sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-ROSEU_FILENAME sy-vline 
WA_J_3RF_DIXML_DOCTYPE_STR-KND_POK sy-vline      INTO ld_text SEPARATED BY SPACE.

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