ABAP Select data from SAP table J_3RFVATMM_HEADER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3RFVATMM_HEADER 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_3RFVATMM_HEADER. 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_3RFVATMM_HEADER 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_3RFVATMM_HEADER TYPE STANDARD TABLE OF J_3RFVATMM_HEADER,
      WA_J_3RFVATMM_HEADER TYPE J_3RFVATMM_HEADER,
      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_3RFVATMM_HEADER> TYPE J_3RFVATMM_HEADER.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3RFVATMM_HEADER.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3RFVATMM_HEADER
  INTO TABLE IT_J_3RFVATMM_HEADER.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3RFVATMM_HEADER
*  INTO TABLE @DATA(IT_J_3RFVATMM_HEADER2).
*--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_3RFVATMM_HEADER INDEX 1 INTO DATA(WA_J_3RFVATMM_HEADER2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3RFVATMM_HEADER ASSIGNING <J_3RFVATMM_HEADER>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3RFVATMM_HEADER>-BUKRS = 1.
<J_3RFVATMM_HEADER>-BELNR_MM = 1.
<J_3RFVATMM_HEADER>-GJAHR_MM = 1.
<J_3RFVATMM_HEADER>-BELNR = 1.
<J_3RFVATMM_HEADER>-GJAHR = 1.

ENDLOOP.

LOOP AT IT_J_3RFVATMM_HEADER INTO WA_J_3RFVATMM_HEADER.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3RFVATMM_HEADER-BLDAT, sy-vline,
  WA_J_3RFVATMM_HEADER-DAYAT, sy-vline,
  WA_J_3RFVATMM_HEADER-MONAT, sy-vline,
  WA_J_3RFVATMM_HEADER-BLART, sy-vline,
  WA_J_3RFVATMM_HEADER-TAX_OFFICE_NUM, sy-vline,
  WA_J_3RFVATMM_HEADER-TAX_OFFICE_NAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3RFVATMM_HEADER 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_3RFVATMM_HEADER 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_3RFVATMM_HEADER INTO WA_J_3RFVATMM_HEADER.


*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 BELNR_MM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVATMM_HEADER-BELNR_MM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVATMM_HEADER-BELNR_MM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_MM
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVATMM_HEADER-GJAHR_MM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVATMM_HEADER-GJAHR_MM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVATMM_HEADER-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVATMM_HEADER-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVATMM_HEADER-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVATMM_HEADER-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VEND_TAX
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVATMM_HEADER-VEND_TAX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVATMM_HEADER-VEND_TAX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VEND_LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFVATMM_HEADER-VEND_LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFVATMM_HEADER-VEND_LIFNR.
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_3RFVATMM_HEADER_STR, 
BUKRS TYPE STRING,
BELNR_MM TYPE STRING,
GJAHR_MM TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BLDAT TYPE STRING,
DAYAT TYPE STRING,
MONAT TYPE STRING,
BLART TYPE STRING,
TAX_OFFICE_NUM TYPE STRING,
TAX_OFFICE_NAME TYPE STRING,
VEND_TAX TYPE STRING,
VEND_LIFNR TYPE STRING,
VEND_STCD TYPE STRING,
VEND_STCD1 TYPE STRING,
VEND_STCD3 TYPE STRING,
VEND_STCD4 TYPE STRING,
VEND_NAME TYPE STRING,
VEND_LAND TYPE STRING,
VEND_BAYKONUR TYPE STRING,
VEND_KLADR TYPE STRING,
VEND_ADDRESS TYPE STRING,
CC_STCD TYPE STRING,
CC_STCD1 TYPE STRING,
CC_STCD3 TYPE STRING,
CC_STCD4 TYPE STRING,
CC_NAME TYPE STRING,
CC_LAND TYPE STRING,
CC_BAYKONUR TYPE STRING,
CC_KLADR TYPE STRING,
CC_ADDRESS TYPE STRING,
CONTR1_NUM TYPE STRING,
CONTR1_DATE TYPE STRING,
CONTR1_SPEC_NUM TYPE STRING,
CONTR1_SPEC_DT TYPE STRING,
CONTR2_NAME TYPE STRING,
CONTR2_BAYKONUR TYPE STRING,
CONTR2_KLADR TYPE STRING,
CONTR2_ADDRESS TYPE STRING,
CONTR2_STCD TYPE STRING,
CONTR2_LAND TYPE STRING,
CONTR2_NUM TYPE STRING,
CONTR2_DATE TYPE STRING,
CONTR2_SPEC_NUM TYPE STRING,
CONTR2_SPEC_DT TYPE STRING,
CONTR2_LEASING TYPE STRING,
CONTR2_ROW TYPE STRING,
CONTR2_PERSON TYPE STRING,
DIRECTOR TYPE STRING,
SIGN_NAME TYPE STRING,
SIGN_DATE TYPE STRING,
SIGN_TYPE TYPE STRING,
SIGN_POST TYPE STRING,
AUTH_DOC TYPE STRING,
AUTH_DOC_DATE TYPE STRING,
AUTH_DOC_NUM TYPE STRING,
SIGN_STCD1 TYPE STRING,
ACCOUNT TYPE STRING,
SIGN_NAME TYPE STRING,
SIGN_DATE TYPE STRING,
SIGN_TYPE TYPE STRING,
SIGN_POST TYPE STRING,
AUTH_DOC TYPE STRING,
AUTH_DOC_DATE TYPE STRING,
AUTH_DOC_NUM TYPE STRING,
SIGN_STCD1 TYPE STRING,
COURIER TYPE STRING,
SIGN_NAME TYPE STRING,
SIGN_DATE TYPE STRING,
SIGN_TYPE TYPE STRING,
SIGN_POST TYPE STRING,
AUTH_DOC TYPE STRING,
AUTH_DOC_DATE TYPE STRING,
AUTH_DOC_NUM TYPE STRING,
SIGN_STCD1 TYPE STRING,
CONTR3_VEND_TYPE TYPE STRING,
CONTR3_VEND_STCD TYPE STRING,
CONTR3_VEND_NAME TYPE STRING,
CONTR3_VEND_LAND TYPE STRING,
CONTR3_VEND_BAYKONUR TYPE STRING,
CONTR3_VEND_KLADR TYPE STRING,
CONTR3_VEND_ADDRESS TYPE STRING,
CONTR3_CC_TYPE TYPE STRING,
CONTR3_CC_STCD TYPE STRING,
CONTR3_CC_STCD1 TYPE STRING,
CONTR3_CC_STCD3 TYPE STRING,
CONTR3_CC_STCD4 TYPE STRING,
CONTR3_CC_NAME TYPE STRING,
CONTR3_CC_LAND TYPE STRING,
CONTR3_CC_BAYKONUR TYPE STRING,
CONTR3_CC_KLADR TYPE STRING,
CONTR3_CC_ADDRESS TYPE STRING,
CONTR3_NUM TYPE STRING,
CONTR3_DATE TYPE STRING,
CONTR3_SPEC_NUM TYPE STRING,
CONTR3_SPEC_DT TYPE STRING,
REPORT_LAND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3RFVATMM_HEADER_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_3RFVATMM_HEADER_STR-BUKRS sy-vline 
WA_J_3RFVATMM_HEADER_STR-BELNR_MM sy-vline 
WA_J_3RFVATMM_HEADER_STR-GJAHR_MM sy-vline 
WA_J_3RFVATMM_HEADER_STR-BELNR sy-vline 
WA_J_3RFVATMM_HEADER_STR-GJAHR sy-vline 
WA_J_3RFVATMM_HEADER_STR-BLDAT sy-vline 
WA_J_3RFVATMM_HEADER_STR-DAYAT sy-vline 
WA_J_3RFVATMM_HEADER_STR-MONAT sy-vline 
WA_J_3RFVATMM_HEADER_STR-BLART sy-vline 
WA_J_3RFVATMM_HEADER_STR-TAX_OFFICE_NUM sy-vline 
WA_J_3RFVATMM_HEADER_STR-TAX_OFFICE_NAME sy-vline 
WA_J_3RFVATMM_HEADER_STR-VEND_TAX sy-vline 
WA_J_3RFVATMM_HEADER_STR-VEND_LIFNR sy-vline 
WA_J_3RFVATMM_HEADER_STR-VEND_STCD sy-vline 
WA_J_3RFVATMM_HEADER_STR-VEND_STCD1 sy-vline 
WA_J_3RFVATMM_HEADER_STR-VEND_STCD3 sy-vline 
WA_J_3RFVATMM_HEADER_STR-VEND_STCD4 sy-vline 
WA_J_3RFVATMM_HEADER_STR-VEND_NAME sy-vline 
WA_J_3RFVATMM_HEADER_STR-VEND_LAND sy-vline 
WA_J_3RFVATMM_HEADER_STR-VEND_BAYKONUR sy-vline 
WA_J_3RFVATMM_HEADER_STR-VEND_KLADR sy-vline 
WA_J_3RFVATMM_HEADER_STR-VEND_ADDRESS sy-vline 
WA_J_3RFVATMM_HEADER_STR-CC_STCD sy-vline 
WA_J_3RFVATMM_HEADER_STR-CC_STCD1 sy-vline 
WA_J_3RFVATMM_HEADER_STR-CC_STCD3 sy-vline 
WA_J_3RFVATMM_HEADER_STR-CC_STCD4 sy-vline 
WA_J_3RFVATMM_HEADER_STR-CC_NAME sy-vline 
WA_J_3RFVATMM_HEADER_STR-CC_LAND sy-vline 
WA_J_3RFVATMM_HEADER_STR-CC_BAYKONUR sy-vline 
WA_J_3RFVATMM_HEADER_STR-CC_KLADR sy-vline 
WA_J_3RFVATMM_HEADER_STR-CC_ADDRESS sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR1_NUM sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR1_DATE sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR1_SPEC_NUM sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR1_SPEC_DT sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR2_NAME sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR2_BAYKONUR sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR2_KLADR sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR2_ADDRESS sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR2_STCD sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR2_LAND sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR2_NUM sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR2_DATE sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR2_SPEC_NUM sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR2_SPEC_DT sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR2_LEASING sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR2_ROW sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR2_PERSON sy-vline 
WA_J_3RFVATMM_HEADER_STR-DIRECTOR sy-vline 
WA_J_3RFVATMM_HEADER_STR-SIGN_NAME sy-vline 
WA_J_3RFVATMM_HEADER_STR-SIGN_DATE sy-vline 
WA_J_3RFVATMM_HEADER_STR-SIGN_TYPE sy-vline 
WA_J_3RFVATMM_HEADER_STR-SIGN_POST sy-vline 
WA_J_3RFVATMM_HEADER_STR-AUTH_DOC sy-vline 
WA_J_3RFVATMM_HEADER_STR-AUTH_DOC_DATE sy-vline 
WA_J_3RFVATMM_HEADER_STR-AUTH_DOC_NUM sy-vline 
WA_J_3RFVATMM_HEADER_STR-SIGN_STCD1 sy-vline 
WA_J_3RFVATMM_HEADER_STR-ACCOUNT sy-vline 
WA_J_3RFVATMM_HEADER_STR-SIGN_NAME sy-vline 
WA_J_3RFVATMM_HEADER_STR-SIGN_DATE sy-vline 
WA_J_3RFVATMM_HEADER_STR-SIGN_TYPE sy-vline 
WA_J_3RFVATMM_HEADER_STR-SIGN_POST sy-vline 
WA_J_3RFVATMM_HEADER_STR-AUTH_DOC sy-vline 
WA_J_3RFVATMM_HEADER_STR-AUTH_DOC_DATE sy-vline 
WA_J_3RFVATMM_HEADER_STR-AUTH_DOC_NUM sy-vline 
WA_J_3RFVATMM_HEADER_STR-SIGN_STCD1 sy-vline 
WA_J_3RFVATMM_HEADER_STR-COURIER sy-vline 
WA_J_3RFVATMM_HEADER_STR-SIGN_NAME sy-vline 
WA_J_3RFVATMM_HEADER_STR-SIGN_DATE sy-vline 
WA_J_3RFVATMM_HEADER_STR-SIGN_TYPE sy-vline 
WA_J_3RFVATMM_HEADER_STR-SIGN_POST sy-vline 
WA_J_3RFVATMM_HEADER_STR-AUTH_DOC sy-vline 
WA_J_3RFVATMM_HEADER_STR-AUTH_DOC_DATE sy-vline 
WA_J_3RFVATMM_HEADER_STR-AUTH_DOC_NUM sy-vline 
WA_J_3RFVATMM_HEADER_STR-SIGN_STCD1 sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_VEND_TYPE sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_VEND_STCD sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_VEND_NAME sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_VEND_LAND sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_VEND_BAYKONUR sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_VEND_KLADR sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_VEND_ADDRESS sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_CC_TYPE sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_CC_STCD sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_CC_STCD1 sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_CC_STCD3 sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_CC_STCD4 sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_CC_NAME sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_CC_LAND sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_CC_BAYKONUR sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_CC_KLADR sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_CC_ADDRESS sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_NUM sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_DATE sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_SPEC_NUM sy-vline 
WA_J_3RFVATMM_HEADER_STR-CONTR3_SPEC_DT sy-vline 
WA_J_3RFVATMM_HEADER_STR-REPORT_LAND sy-vline      INTO ld_text SEPARATED BY SPACE.

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