ABAP Select data from SAP table J_3RSELL_BOOK_14EXT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3RSELL_BOOK_14EXT 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_3RSELL_BOOK_14EXT.

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_3RSELL_BOOK_14EXT 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_3RSELL_BOOK_14EXT TYPE STANDARD TABLE OF J_3RSELL_BOOK_14EXT,
      WA_J_3RSELL_BOOK_14EXT TYPE J_3RSELL_BOOK_14EXT,
      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_3RSELL_BOOK_14EXT> TYPE J_3RSELL_BOOK_14EXT.


*Original SAP ECC Select statement 
SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3RSELL_BOOK_14EXT
  INTO TABLE IT_J_3RSELL_BOOK_14EXT.

*Select data and declare internal table using  in-line method @DATA 
SELECT *
  FROM J_3RSELL_BOOK_14EXT
  INTO TABLE @DATA(IT_J_3RSELL_BOOK_14EXT2).

*You can also declare the header/work area using the  in-line DATA declaration method 
READ TABLE IT_J_3RSELL_BOOK_14EXT INDEX 1 INTO DATA(WA_J_3RSELL_BOOK_14EXT2).


*Latest ABAP cloud SELECT statement using the FIELDS syntax. But note to following the clean core principles you should not select directly from an SAP table 
* and should instead use a CDS view or create you own CDS and use that.
SELECT FROM J_3RSELL_BOOK_14EXT
  FIELDS *
*  WHERE would go here
  INTO TABLE @DATA(IT_J_3RSELL_BOOK_14EXT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3RSELL_BOOK_14EXT ASSIGNING <J_3RSELL_BOOK_14EXT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3RSELL_BOOK_14EXT>-BUKRS = 1.
<J_3RSELL_BOOK_14EXT>-GJAHR_INV = 1.
<J_3RSELL_BOOK_14EXT>-BELNR_INV = 1.
<J_3RSELL_BOOK_14EXT>-XBLNR_INV = 1.
<J_3RSELL_BOOK_14EXT>-BUDAT_INV = 1.

ENDLOOP.

LOOP AT IT_J_3RSELL_BOOK_14EXT INTO WA_J_3RSELL_BOOK_14EXT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3RSELL_BOOK_14EXT-BLDAT_INV, sy-vline,
  WA_J_3RSELL_BOOK_14EXT-DMBTR_INV, sy-vline,
  WA_J_3RSELL_BOOK_14EXT-DMBTR_WRS_INV, sy-vline,
  WA_J_3RSELL_BOOK_14EXT-WRBTR_INV, sy-vline,
  WA_J_3RSELL_BOOK_14EXT-WRBTR_WRS_INV, sy-vline,
  WA_J_3RSELL_BOOK_14EXT-GJAHR_PAY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3RSELL_BOOK_14EXT 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_3RSELL_BOOK_14EXT 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_3RSELL_BOOK_14EXT INTO WA_J_3RSELL_BOOK_14EXT.


*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_INV
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-GJAHR_INV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-GJAHR_INV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_INV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-BELNR_INV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-BELNR_INV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_PAY
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-GJAHR_PAY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-GJAHR_PAY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_PAY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-BELNR_PAY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-BELNR_PAY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_TRN
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-GJAHR_TRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-GJAHR_TRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_TRN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-BELNR_TRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-BELNR_TRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_TEST
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-GJAHR_TEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-GJAHR_TEST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR_CRED
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-LIFNR_CRED
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-LIFNR_CRED.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LINENUMB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-LINENUMB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-LINENUMB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_BUY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-BELNR_BUY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-BELNR_BUY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHRBUY
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-GJAHRBUY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-GJAHRBUY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field EBELJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-EBELJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-EBELJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT_INV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-HKONT_INV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-HKONT_INV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT_TRN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-HKONT_TRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-HKONT_TRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT_CLN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-HKONT_CLN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-HKONT_CLN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_ORIGPAY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-BELNR_ORIGPAY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-BELNR_ORIGPAY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_ORIGPAY
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-GJAHR_ORIGPAY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-GJAHR_ORIGPAY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_ADD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-BELNR_ADD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-BELNR_ADD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_ADD
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-GJAHR_ADD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-GJAHR_ADD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_ORIG_INV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-BELNR_ORIG_INV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-BELNR_ORIG_INV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_ORIG_INV
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-GJAHR_ORIG_INV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-GJAHR_ORIG_INV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_CORR_INV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-BELNR_CORR_INV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-BELNR_CORR_INV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_CORR_INV
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-GJAHR_CORR_INV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-GJAHR_CORR_INV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_ORIG_REV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-BELNR_ORIG_REV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-BELNR_ORIG_REV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_ORIG_REV
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-GJAHR_ORIG_REV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-GJAHR_ORIG_REV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_CORR_REV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-BELNR_CORR_REV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-BELNR_CORR_REV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_CORR_REV
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-GJAHR_CORR_REV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-GJAHR_CORR_REV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NUM_LINE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-NUM_LINE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-NUM_LINE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BRANCH_ACC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RSELL_BOOK_14EXT-BRANCH_ACC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RSELL_BOOK_14EXT-BRANCH_ACC.
WRITE:/ 'New Value:', ld_input.
ENDFORM.