ABAP Select data from SAP table /BGLOCS/FI_VAT_SALES into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /BGLOCS/FI_VAT_SALES 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 /BGLOCS/FI_VAT_SALES. 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 /BGLOCS/FI_VAT_SALES 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_/BGLOCS/FI_VAT_SALES TYPE STANDARD TABLE OF /BGLOCS/FI_VAT_SALES,
      WA_/BGLOCS/FI_VAT_SALES TYPE /BGLOCS/FI_VAT_SALES,
      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: </BGLOCS/FI_VAT_SALES> TYPE /BGLOCS/FI_VAT_SALES.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /BGLOCS/FI_VAT_SALES
  INTO TABLE IT_/BGLOCS/FI_VAT_SALES.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BGLOCS/FI_VAT_SALES
*  INTO TABLE @DATA(IT_/BGLOCS/FI_VAT_SALES2).
*--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_/BGLOCS/FI_VAT_SALES INDEX 1 INTO DATA(WA_/BGLOCS/FI_VAT_SALES2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/BGLOCS/FI_VAT_SALES ASSIGNING </BGLOCS/FI_VAT_SALES>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BGLOCS/FI_VAT_SALES>-BELNR = 1.
</BGLOCS/FI_VAT_SALES>-BUKRS = 1.
</BGLOCS/FI_VAT_SALES>-GJAHR = 1.
</BGLOCS/FI_VAT_SALES>-COMPANY_TAX_CODE = 1.
</BGLOCS/FI_VAT_SALES>-BRANCH = 1.

ENDLOOP.

LOOP AT IT_/BGLOCS/FI_VAT_SALES INTO WA_/BGLOCS/FI_VAT_SALES.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BGLOCS/FI_VAT_SALES-COUNTER, sy-vline,
  WA_/BGLOCS/FI_VAT_SALES-SAP_DOC_TYPE, sy-vline,
  WA_/BGLOCS/FI_VAT_SALES-DOC_TYPE, sy-vline,
  WA_/BGLOCS/FI_VAT_SALES-DOC_NUM, sy-vline,
  WA_/BGLOCS/FI_VAT_SALES-DOC_NUM_R3, sy-vline,
  WA_/BGLOCS/FI_VAT_SALES-DOC_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BGLOCS/FI_VAT_SALES 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_/BGLOCS/FI_VAT_SALES 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_/BGLOCS/FI_VAT_SALES INTO WA_/BGLOCS/FI_VAT_SALES.


*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
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BGLOCS/FI_VAT_SALES-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BGLOCS/FI_VAT_SALES-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/BGLOCS/FI_VAT_SALES-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BGLOCS/FI_VAT_SALES-GJAHR.
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_/BGLOCS/FI_VAT_SALES_STR, 
BELNR TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
COMPANY_TAX_CODE TYPE STRING,
BRANCH TYPE STRING,
COUNTER TYPE STRING,
SAP_DOC_TYPE TYPE STRING,
DOC_TYPE TYPE STRING,
DOC_NUM TYPE STRING,
DOC_NUM_R3 TYPE STRING,
DOC_DATE TYPE STRING,
TAX_PERIOD TYPE STRING,
POSTING_DATE TYPE STRING,
CUSTOMER_TAX_CODE TYPE STRING,
CUSTOMER_NAME TYPE STRING,
CUSTOMER_LAND TYPE STRING,
DOC_TEXT TYPE STRING,
AWTYP TYPE STRING,
AWKEY TYPE STRING,
TOT_LINE TYPE STRING,
COL_09 TYPE STRING,
COL_10 TYPE STRING,
COL_11 TYPE STRING,
COL_12 TYPE STRING,
COL_13 TYPE STRING,
COL_14 TYPE STRING,
COL_15 TYPE STRING,
COL_16 TYPE STRING,
COL_17 TYPE STRING,
COL_18 TYPE STRING,
COL_19 TYPE STRING,
COL_20 TYPE STRING,
COL_21 TYPE STRING,
COL_22 TYPE STRING,
COL_23 TYPE STRING,
COL_24 TYPE STRING,
COL_25 TYPE STRING,
D163A TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BGLOCS/FI_VAT_SALES_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_/BGLOCS/FI_VAT_SALES_STR-BELNR sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-BUKRS sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-GJAHR sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COMPANY_TAX_CODE sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-BRANCH sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COUNTER sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-SAP_DOC_TYPE sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-DOC_TYPE sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-DOC_NUM sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-DOC_NUM_R3 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-DOC_DATE sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-TAX_PERIOD sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-POSTING_DATE sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-CUSTOMER_TAX_CODE sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-CUSTOMER_NAME sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-CUSTOMER_LAND sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-DOC_TEXT sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-AWTYP sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-AWKEY sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-TOT_LINE sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_09 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_10 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_11 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_12 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_13 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_14 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_15 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_16 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_17 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_18 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_19 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_20 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_21 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_22 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_23 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_24 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-COL_25 sy-vline 
WA_/BGLOCS/FI_VAT_SALES_STR-D163A sy-vline      INTO ld_text SEPARATED BY SPACE.

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