ABAP Select data from SAP table FIWTES_S_MODELO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIWTES_S_MODELO
*  INTO TABLE @DATA(IT_FIWTES_S_MODELO2).
*--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_FIWTES_S_MODELO INDEX 1 INTO DATA(WA_FIWTES_S_MODELO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIWTES_S_MODELO>-REPORTING_PERIOD = 1.
<FIWTES_S_MODELO>-END_TAG = 1.
<FIWTES_S_MODELO>-CORRECTION_RUN = 1.
<FIWTES_S_MODELO>-TOT_INCOMES_WHT = 1.
<FIWTES_S_MODELO>-TOT_INCOMES_NOT_WHT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIWTES_S_MODELO-AMOUNT_REMITTED_PREV_RUN, sy-vline,
  WA_FIWTES_S_MODELO-AMOUNT_REMITTED_PREV_RUN_123, sy-vline,
  WA_FIWTES_S_MODELO-AMOUNT_TO_REMIT, sy-vline,
  WA_FIWTES_S_MODELO-AMOUNT_TO_REMIT_123, sy-vline,
  WA_FIWTES_S_MODELO-SELF_ASSESSMENT_TYPE, sy-vline,
  WA_FIWTES_S_MODELO-TOTPARTNER_M123, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIWTES_S_MODELO 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_FIWTES_S_MODELO 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_FIWTES_S_MODELO INTO WA_FIWTES_S_MODELO.


*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 AC152, internal->external for field CORR_296_WHTBASE
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIWTES_S_MODELO-CORR_296_WHTBASE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTES_S_MODELO-CORR_296_WHTBASE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field CORR_296_WHTAMT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIWTES_S_MODELO-CORR_296_WHTAMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTES_S_MODELO-CORR_296_WHTAMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field CORR_296_WHTAMT_REMITTED
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIWTES_S_MODELO-CORR_296_WHTAMT_REMITTED
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTES_S_MODELO-CORR_296_WHTAMT_REMITTED.
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_FIWTES_S_MODELO_STR, 
REPORTING_PERIOD TYPE STRING,
END_TAG TYPE STRING,
CORRECTION_RUN TYPE STRING,
TOT_INCOMES_WHT TYPE STRING,
TOT_INCOMES_NOT_WHT TYPE STRING,
AMOUNT_REMITTED_PREV_RUN TYPE STRING,
AMOUNT_REMITTED_PREV_RUN_123 TYPE STRING,
AMOUNT_TO_REMIT TYPE STRING,
AMOUNT_TO_REMIT_123 TYPE STRING,
SELF_ASSESSMENT_TYPE TYPE STRING,
TOTPARTNER_M123 TYPE STRING,
TOTPARTNER_EMPMON TYPE STRING,
TOTPARTNER_EMPINK TYPE STRING,
TOTPARTNER_ECONMON TYPE STRING,
TOTPARTNER_ECONINK TYPE STRING,
TOTPARTNER_PRIZMON TYPE STRING,
TOTPARTNER_PRIZINK TYPE STRING,
TOTPARTNER_FORMON TYPE STRING,
TOTPARTNER_FORINK TYPE STRING,
TOTPARTNER_IMGMON TYPE STRING,
TAX_ID_NIF TYPE STRING,
COMPANYNAME TYPE STRING,
FILE_NAME TYPE STRING,
DIRECT_DEBIT_IBAN TYPE STRING,
TAX_RET_REG_NUM TYPE STRING,
TOTPARTNER_296 TYPE STRING,
SUBSTITUTION_RUN TYPE STRING,
CORR_296_WHTBASE TYPE STRING,
CORR_296_WHTAMT TYPE STRING,
CORR_296_WHTAMT_REMITTED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIWTES_S_MODELO_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_FIWTES_S_MODELO_STR-REPORTING_PERIOD sy-vline 
WA_FIWTES_S_MODELO_STR-END_TAG sy-vline 
WA_FIWTES_S_MODELO_STR-CORRECTION_RUN sy-vline 
WA_FIWTES_S_MODELO_STR-TOT_INCOMES_WHT sy-vline 
WA_FIWTES_S_MODELO_STR-TOT_INCOMES_NOT_WHT sy-vline 
WA_FIWTES_S_MODELO_STR-AMOUNT_REMITTED_PREV_RUN sy-vline 
WA_FIWTES_S_MODELO_STR-AMOUNT_REMITTED_PREV_RUN_123 sy-vline 
WA_FIWTES_S_MODELO_STR-AMOUNT_TO_REMIT sy-vline 
WA_FIWTES_S_MODELO_STR-AMOUNT_TO_REMIT_123 sy-vline 
WA_FIWTES_S_MODELO_STR-SELF_ASSESSMENT_TYPE sy-vline 
WA_FIWTES_S_MODELO_STR-TOTPARTNER_M123 sy-vline 
WA_FIWTES_S_MODELO_STR-TOTPARTNER_EMPMON sy-vline 
WA_FIWTES_S_MODELO_STR-TOTPARTNER_EMPINK sy-vline 
WA_FIWTES_S_MODELO_STR-TOTPARTNER_ECONMON sy-vline 
WA_FIWTES_S_MODELO_STR-TOTPARTNER_ECONINK sy-vline 
WA_FIWTES_S_MODELO_STR-TOTPARTNER_PRIZMON sy-vline 
WA_FIWTES_S_MODELO_STR-TOTPARTNER_PRIZINK sy-vline 
WA_FIWTES_S_MODELO_STR-TOTPARTNER_FORMON sy-vline 
WA_FIWTES_S_MODELO_STR-TOTPARTNER_FORINK sy-vline 
WA_FIWTES_S_MODELO_STR-TOTPARTNER_IMGMON sy-vline 
WA_FIWTES_S_MODELO_STR-TAX_ID_NIF sy-vline 
WA_FIWTES_S_MODELO_STR-COMPANYNAME sy-vline 
WA_FIWTES_S_MODELO_STR-FILE_NAME sy-vline 
WA_FIWTES_S_MODELO_STR-DIRECT_DEBIT_IBAN sy-vline 
WA_FIWTES_S_MODELO_STR-TAX_RET_REG_NUM sy-vline 
WA_FIWTES_S_MODELO_STR-TOTPARTNER_296 sy-vline 
WA_FIWTES_S_MODELO_STR-SUBSTITUTION_RUN sy-vline 
WA_FIWTES_S_MODELO_STR-CORR_296_WHTBASE sy-vline 
WA_FIWTES_S_MODELO_STR-CORR_296_WHTAMT sy-vline 
WA_FIWTES_S_MODELO_STR-CORR_296_WHTAMT_REMITTED sy-vline      INTO ld_text SEPARATED BY SPACE.

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