ABAP Select data from SAP table FIRUS_VATRET_EAEU_PREVIEW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FIRUS_VATRET_EAEU_PREVIEW 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 FIRUS_VATRET_EAEU_PREVIEW. 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 FIRUS_VATRET_EAEU_PREVIEW 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_FIRUS_VATRET_EAEU_PREVIEW TYPE STANDARD TABLE OF FIRUS_VATRET_EAEU_PREVIEW,
      WA_FIRUS_VATRET_EAEU_PREVIEW TYPE FIRUS_VATRET_EAEU_PREVIEW,
      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: <FIRUS_VATRET_EAEU_PREVIEW> TYPE FIRUS_VATRET_EAEU_PREVIEW.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIRUS_VATRET_EAEU_PREVIEW
*  INTO TABLE @DATA(IT_FIRUS_VATRET_EAEU_PREVIEW2).
*--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_FIRUS_VATRET_EAEU_PREVIEW INDEX 1 INTO DATA(WA_FIRUS_VATRET_EAEU_PREVIEW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIRUS_VATRET_EAEU_PREVIEW>-HEADER = 1.
<FIRUS_VATRET_EAEU_PREVIEW>-REPORTING_YEAR = 1.
<FIRUS_VATRET_EAEU_PREVIEW>-PERIOD = 1.
<FIRUS_VATRET_EAEU_PREVIEW>-CORRNUM = 1.
<FIRUS_VATRET_EAEU_PREVIEW>-ORGANIZATIONNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIRUS_VATRET_EAEU_PREVIEW-COMPANYCODEINN, sy-vline,
  WA_FIRUS_VATRET_EAEU_PREVIEW-COMPANYCODEKPP, sy-vline,
  WA_FIRUS_VATRET_EAEU_PREVIEW-COMPANYCODEOKVED, sy-vline,
  WA_FIRUS_VATRET_EAEU_PREVIEW-OKTMO, sy-vline,
  WA_FIRUS_VATRET_EAEU_PREVIEW-KBK, sy-vline,
  WA_FIRUS_VATRET_EAEU_PREVIEW-ITEMS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIRUS_VATRET_EAEU_PREVIEW 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_FIRUS_VATRET_EAEU_PREVIEW 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_FIRUS_VATRET_EAEU_PREVIEW INTO WA_FIRUS_VATRET_EAEU_PREVIEW.


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

*Conversion exit OKTMO, internal->external for field OKTMO
CALL FUNCTION 'CONVERSION_EXIT_OKTMO_OUTPUT'
  EXPORTING
    input =                      WA_FIRUS_VATRET_EAEU_PREVIEW-OKTMO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIRUS_VATRET_EAEU_PREVIEW-OKTMO.
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_FIRUS_VATRET_EAEU_PREVIEW_STR, 
HEADER TYPE STRING,
REPORTING_YEAR TYPE STRING,
PERIOD TYPE STRING,
CORRNUM TYPE STRING,
ORGANIZATIONNAME TYPE STRING,
COMPANYCODEINN TYPE STRING,
COMPANYCODEKPP TYPE STRING,
COMPANYCODEOKVED TYPE STRING,
OKTMO TYPE STRING,
KBK TYPE STRING,
ITEMS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIRUS_VATRET_EAEU_PREVIEW_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_FIRUS_VATRET_EAEU_PREVIEW_STR-HEADER sy-vline 
WA_FIRUS_VATRET_EAEU_PREVIEW_STR-REPORTING_YEAR sy-vline 
WA_FIRUS_VATRET_EAEU_PREVIEW_STR-PERIOD sy-vline 
WA_FIRUS_VATRET_EAEU_PREVIEW_STR-CORRNUM sy-vline 
WA_FIRUS_VATRET_EAEU_PREVIEW_STR-ORGANIZATIONNAME sy-vline 
WA_FIRUS_VATRET_EAEU_PREVIEW_STR-COMPANYCODEINN sy-vline 
WA_FIRUS_VATRET_EAEU_PREVIEW_STR-COMPANYCODEKPP sy-vline 
WA_FIRUS_VATRET_EAEU_PREVIEW_STR-COMPANYCODEOKVED sy-vline 
WA_FIRUS_VATRET_EAEU_PREVIEW_STR-OKTMO sy-vline 
WA_FIRUS_VATRET_EAEU_PREVIEW_STR-KBK sy-vline 
WA_FIRUS_VATRET_EAEU_PREVIEW_STR-ITEMS sy-vline      INTO ld_text SEPARATED BY SPACE.

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