ABAP Select data from SAP table J_3RF_VATCRQ_XML_APP10 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_VATCRQ_XML_APP10 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_VATCRQ_XML_APP10. 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_VATCRQ_XML_APP10 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_VATCRQ_XML_APP10 TYPE STANDARD TABLE OF J_3RF_VATCRQ_XML_APP10,
      WA_J_3RF_VATCRQ_XML_APP10 TYPE J_3RF_VATCRQ_XML_APP10,
      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_VATCRQ_XML_APP10> TYPE J_3RF_VATCRQ_XML_APP10.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3RF_VATCRQ_XML_APP10.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3RF_VATCRQ_XML_APP10
  INTO TABLE IT_J_3RF_VATCRQ_XML_APP10.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3RF_VATCRQ_XML_APP10
*  INTO TABLE @DATA(IT_J_3RF_VATCRQ_XML_APP102).
*--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_VATCRQ_XML_APP10 INDEX 1 INTO DATA(WA_J_3RF_VATCRQ_XML_APP102).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3RF_VATCRQ_XML_APP10 ASSIGNING <J_3RF_VATCRQ_XML_APP10>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3RF_VATCRQ_XML_APP10>-NUM_LINE = 1.
<J_3RF_VATCRQ_XML_APP10>-GJAHR = 1.
<J_3RF_VATCRQ_XML_APP10>-PERIOD = 1.
<J_3RF_VATCRQ_XML_APP10>-CORR_NUM = 1.
<J_3RF_VATCRQ_XML_APP10>-BELNR_ORIG = 1.

ENDLOOP.

LOOP AT IT_J_3RF_VATCRQ_XML_APP10 INTO WA_J_3RF_VATCRQ_XML_APP10.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3RF_VATCRQ_XML_APP10-DATE_ORIG, sy-vline,
  WA_J_3RF_VATCRQ_XML_APP10-DATE_ORIG_C, sy-vline,
  WA_J_3RF_VATCRQ_XML_APP10-EXT_ORIG, sy-vline,
  WA_J_3RF_VATCRQ_XML_APP10-BELNR_CORR, sy-vline,
  WA_J_3RF_VATCRQ_XML_APP10-EXT_CORR, sy-vline,
  WA_J_3RF_VATCRQ_XML_APP10-DATE_CORR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3RF_VATCRQ_XML_APP10 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_VATCRQ_XML_APP10 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_VATCRQ_XML_APP10 INTO WA_J_3RF_VATCRQ_XML_APP10.


*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
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_VATCRQ_XML_APP10-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_VATCRQ_XML_APP10-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CORR_NUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_VATCRQ_XML_APP10-CORR_NUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_VATCRQ_XML_APP10-CORR_NUM.
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_VATCRQ_XML_APP10-BELNR_ORIG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_VATCRQ_XML_APP10-BELNR_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_VATCRQ_XML_APP10-BELNR_CORR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_VATCRQ_XML_APP10-BELNR_CORR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_REV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_VATCRQ_XML_APP10-BELNR_REV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_VATCRQ_XML_APP10-BELNR_REV.
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_VATCRQ_XML_APP10_STR, 
NUM_LINE TYPE STRING,
GJAHR TYPE STRING,
PERIOD TYPE STRING,
CORR_NUM TYPE STRING,
BELNR_ORIG TYPE STRING,
DATE_ORIG TYPE STRING,
DATE_ORIG_C TYPE STRING,
EXT_ORIG TYPE STRING,
BELNR_CORR TYPE STRING,
EXT_CORR TYPE STRING,
DATE_CORR TYPE STRING,
DATE_CORR_C TYPE STRING,
REVNO TYPE STRING,
REVNO_ORIG TYPE STRING,
DATE_ORIG_REV TYPE STRING,
DATE_ORIG_REV_C TYPE STRING,
DATE_REV TYPE STRING,
DATE_REV_C TYPE STRING,
BELNR_REV TYPE STRING,
ERR_CODE TYPE STRING,
ERR_COL_T TYPE STRING,
OPER_TYP_T TYPE STRING,
BUYER_INN TYPE STRING,
IS_UL_OR_FL TYPE STRING,
INN_UL TYPE STRING,
INN_FL TYPE STRING,
KPP_UL TYPE STRING,
BROKER_ACT_T TYPE STRING,
ERR_CODE_T TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3RF_VATCRQ_XML_APP10_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_VATCRQ_XML_APP10_STR-NUM_LINE sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-GJAHR sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-PERIOD sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-CORR_NUM sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-BELNR_ORIG sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-DATE_ORIG sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-DATE_ORIG_C sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-EXT_ORIG sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-BELNR_CORR sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-EXT_CORR sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-DATE_CORR sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-DATE_CORR_C sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-REVNO sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-REVNO_ORIG sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-DATE_ORIG_REV sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-DATE_ORIG_REV_C sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-DATE_REV sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-DATE_REV_C sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-BELNR_REV sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-ERR_CODE sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-ERR_COL_T sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-OPER_TYP_T sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-BUYER_INN sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-IS_UL_OR_FL sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-INN_UL sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-INN_FL sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-KPP_UL sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-BROKER_ACT_T sy-vline 
WA_J_3RF_VATCRQ_XML_APP10_STR-ERR_CODE_T sy-vline      INTO ld_text SEPARATED BY SPACE.

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