ABAP Select data from SAP table J_3RFVAT_REP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3RFVAT_REP 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_3RFVAT_REP. 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_3RFVAT_REP 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_3RFVAT_REP TYPE STANDARD TABLE OF J_3RFVAT_REP,
      WA_J_3RFVAT_REP TYPE J_3RFVAT_REP,
      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_3RFVAT_REP> TYPE J_3RFVAT_REP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3RFVAT_REP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3RFVAT_REP
  INTO TABLE IT_J_3RFVAT_REP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3RFVAT_REP
*  INTO TABLE @DATA(IT_J_3RFVAT_REP2).
*--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_3RFVAT_REP INDEX 1 INTO DATA(WA_J_3RFVAT_REP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3RFVAT_REP ASSIGNING <J_3RFVAT_REP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3RFVAT_REP>-CHECK__ = 1.
<J_3RFVAT_REP>-LIGHT__ = 1.
<J_3RFVAT_REP>-FKSTO = 1.
<J_3RFVAT_REP>-FKART = 1.
<J_3RFVAT_REP>-FKTYP = 1.

ENDLOOP.

LOOP AT IT_J_3RFVAT_REP INTO WA_J_3RFVAT_REP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3RFVAT_REP-VBELN, sy-vline,
  WA_J_3RFVAT_REP-FKDAT, sy-vline,
  WA_J_3RFVAT_REP-KUNAG, sy-vline,
  WA_J_3RFVAT_REP-VKORG, sy-vline,
  WA_J_3RFVAT_REP-NETWR, sy-vline,
  WA_J_3RFVAT_REP-WAERK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3RFVAT_REP 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_3RFVAT_REP 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_3RFVAT_REP INTO WA_J_3RFVAT_REP.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-KUNAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-KUNAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field NETWR_LOC
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-NETWR_LOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-NETWR_LOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURRF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-KURRF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-KURRF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field MWSBK_CUR
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-MWSBK_CUR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-MWSBK_CUR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_VAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-BELNR_VAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-BELNR_VAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_VAT
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-GJAHR_VAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-GJAHR_VAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WRBTR_VAT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-WRBTR_VAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-WRBTR_VAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field FWBAS_VAT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-FWBAS_VAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-FWBAS_VAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field DMBTR_VAT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-DMBTR_VAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-DMBTR_VAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field HWBAS_VAT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-HWBAS_VAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-HWBAS_VAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSF_VAT
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-KURSF_VAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-KURSF_VAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_INV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-BELNR_INV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-BELNR_INV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_INV
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-GJAHR_INV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-GJAHR_INV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_CLR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-BELNR_CLR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-BELNR_CLR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_CLR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVAT_REP-GJAHR_CLR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVAT_REP-GJAHR_CLR.
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_3RFVAT_REP_STR, 
CHECK__ TYPE STRING,
LIGHT__ TYPE STRING,
FKSTO TYPE STRING,
FKART TYPE STRING,
FKTYP TYPE STRING,
VBELN TYPE STRING,
FKDAT TYPE STRING,
KUNAG TYPE STRING,
VKORG TYPE STRING,
NETWR TYPE STRING,
WAERK TYPE STRING,
NETWR_LOC TYPE STRING,
WAERK_LOC TYPE STRING,
KURRF TYPE STRING,
KURRF_DAT TYPE STRING,
MWSBK TYPE STRING,
MWSBK_CUR TYPE STRING,
RFBSK TYPE STRING,
BELNR_VAT TYPE STRING,
GJAHR_VAT TYPE STRING,
WRBTR_VAT TYPE STRING,
FWBAS_VAT TYPE STRING,
WAERS_VAT TYPE STRING,
DMBTR_VAT TYPE STRING,
HWBAS_VAT TYPE STRING,
KURSF_VAT TYPE STRING,
WWERT_VAT TYPE STRING,
BELNR_INV TYPE STRING,
GJAHR_INV TYPE STRING,
BELNR_CLR TYPE STRING,
GJAHR_CLR TYPE STRING,
ERRTXT__ TYPE STRING,
BUKRS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3RFVAT_REP_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_3RFVAT_REP_STR-CHECK__ sy-vline 
WA_J_3RFVAT_REP_STR-LIGHT__ sy-vline 
WA_J_3RFVAT_REP_STR-FKSTO sy-vline 
WA_J_3RFVAT_REP_STR-FKART sy-vline 
WA_J_3RFVAT_REP_STR-FKTYP sy-vline 
WA_J_3RFVAT_REP_STR-VBELN sy-vline 
WA_J_3RFVAT_REP_STR-FKDAT sy-vline 
WA_J_3RFVAT_REP_STR-KUNAG sy-vline 
WA_J_3RFVAT_REP_STR-VKORG sy-vline 
WA_J_3RFVAT_REP_STR-NETWR sy-vline 
WA_J_3RFVAT_REP_STR-WAERK sy-vline 
WA_J_3RFVAT_REP_STR-NETWR_LOC sy-vline 
WA_J_3RFVAT_REP_STR-WAERK_LOC sy-vline 
WA_J_3RFVAT_REP_STR-KURRF sy-vline 
WA_J_3RFVAT_REP_STR-KURRF_DAT sy-vline 
WA_J_3RFVAT_REP_STR-MWSBK sy-vline 
WA_J_3RFVAT_REP_STR-MWSBK_CUR sy-vline 
WA_J_3RFVAT_REP_STR-RFBSK sy-vline 
WA_J_3RFVAT_REP_STR-BELNR_VAT sy-vline 
WA_J_3RFVAT_REP_STR-GJAHR_VAT sy-vline 
WA_J_3RFVAT_REP_STR-WRBTR_VAT sy-vline 
WA_J_3RFVAT_REP_STR-FWBAS_VAT sy-vline 
WA_J_3RFVAT_REP_STR-WAERS_VAT sy-vline 
WA_J_3RFVAT_REP_STR-DMBTR_VAT sy-vline 
WA_J_3RFVAT_REP_STR-HWBAS_VAT sy-vline 
WA_J_3RFVAT_REP_STR-KURSF_VAT sy-vline 
WA_J_3RFVAT_REP_STR-WWERT_VAT sy-vline 
WA_J_3RFVAT_REP_STR-BELNR_INV sy-vline 
WA_J_3RFVAT_REP_STR-GJAHR_INV sy-vline 
WA_J_3RFVAT_REP_STR-BELNR_CLR sy-vline 
WA_J_3RFVAT_REP_STR-GJAHR_CLR sy-vline 
WA_J_3RFVAT_REP_STR-ERRTXT__ sy-vline 
WA_J_3RFVAT_REP_STR-BUKRS sy-vline      INTO ld_text SEPARATED BY SPACE.

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