ABAP Select data from SAP table FIWTES_S_M193 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_M193 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_M193. 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_M193 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_M193 TYPE STANDARD TABLE OF FIWTES_S_M193,
      WA_FIWTES_S_M193 TYPE FIWTES_S_M193,
      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_M193> TYPE FIWTES_S_M193.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FIWTES_S_M193.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FIWTES_S_M193
  INTO TABLE IT_FIWTES_S_M193.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIWTES_S_M193
*  INTO TABLE @DATA(IT_FIWTES_S_M1932).
*--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_M193 INDEX 1 INTO DATA(WA_FIWTES_S_M1932).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FIWTES_S_M193 ASSIGNING <FIWTES_S_M193>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIWTES_S_M193>-RECORD_TYPE1 = 1.
<FIWTES_S_M193>-RECORD_TYPE = 1.
<FIWTES_S_M193>-FORM = 1.
<FIWTES_S_M193>-REPORTING_YEAR = 1.
<FIWTES_S_M193>-WITHHOLDING_AGENT_TAX = 1.

ENDLOOP.

LOOP AT IT_FIWTES_S_M193 INTO WA_FIWTES_S_M193.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIWTES_S_M193-SURNAME_COMPANY_NAME, sy-vline,
  WA_FIWTES_S_M193-SUBMISSION_TYPE, sy-vline,
  WA_FIWTES_S_M193-CONTACT_PERSON_PHONE, sy-vline,
  WA_FIWTES_S_M193-CONTACT_PERSON_NAME, sy-vline,
  WA_FIWTES_S_M193-TAX_RET_REG_NUM, sy-vline,
  WA_FIWTES_S_M193-COMPLEMENTARY_TAX_RETURN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIWTES_S_M193 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_M193 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_M193 INTO WA_FIWTES_S_M193.


*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.
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_M193_STR, 
RECORD_TYPE1 TYPE STRING,
RECORD_TYPE TYPE STRING,
FORM TYPE STRING,
REPORTING_YEAR TYPE STRING,
WITHHOLDING_AGENT_TAX TYPE STRING,
SURNAME_COMPANY_NAME TYPE STRING,
SUBMISSION_TYPE TYPE STRING,
CONTACT_PERSON_PHONE TYPE STRING,
CONTACT_PERSON_NAME TYPE STRING,
TAX_RET_REG_NUM TYPE STRING,
COMPLEMENTARY_TAX_RETURN TYPE STRING,
SUBSTITUTION_TAX_RETURN TYPE STRING,
PREVIOUS_TAX_RET_REG TYPE STRING,
NUM_INCOME_RECIPIENTS TYPE STRING,
INCOME_TAX_BASE_AMT TYPE STRING,
WITHHELD_AMT TYPE STRING,
REMITTED_AMOUNT TYPE STRING,
EMPTY TYPE STRING,
COSTS TYPE STRING,
WITHHOLDING_AGENT_NATURE TYPE STRING,
EMPTY1 TYPE STRING,
DIGITAL_SIGNATURE TYPE STRING,
RECORD_TYPE2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIWTES_S_M193_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_M193_STR-RECORD_TYPE1 sy-vline 
WA_FIWTES_S_M193_STR-RECORD_TYPE sy-vline 
WA_FIWTES_S_M193_STR-FORM sy-vline 
WA_FIWTES_S_M193_STR-REPORTING_YEAR sy-vline 
WA_FIWTES_S_M193_STR-WITHHOLDING_AGENT_TAX sy-vline 
WA_FIWTES_S_M193_STR-SURNAME_COMPANY_NAME sy-vline 
WA_FIWTES_S_M193_STR-SUBMISSION_TYPE sy-vline 
WA_FIWTES_S_M193_STR-CONTACT_PERSON_PHONE sy-vline 
WA_FIWTES_S_M193_STR-CONTACT_PERSON_NAME sy-vline 
WA_FIWTES_S_M193_STR-TAX_RET_REG_NUM sy-vline 
WA_FIWTES_S_M193_STR-COMPLEMENTARY_TAX_RETURN sy-vline 
WA_FIWTES_S_M193_STR-SUBSTITUTION_TAX_RETURN sy-vline 
WA_FIWTES_S_M193_STR-PREVIOUS_TAX_RET_REG sy-vline 
WA_FIWTES_S_M193_STR-NUM_INCOME_RECIPIENTS sy-vline 
WA_FIWTES_S_M193_STR-INCOME_TAX_BASE_AMT sy-vline 
WA_FIWTES_S_M193_STR-WITHHELD_AMT sy-vline 
WA_FIWTES_S_M193_STR-REMITTED_AMOUNT sy-vline 
WA_FIWTES_S_M193_STR-EMPTY sy-vline 
WA_FIWTES_S_M193_STR-COSTS sy-vline 
WA_FIWTES_S_M193_STR-WITHHOLDING_AGENT_NATURE sy-vline 
WA_FIWTES_S_M193_STR-EMPTY1 sy-vline 
WA_FIWTES_S_M193_STR-DIGITAL_SIGNATURE sy-vline 
WA_FIWTES_S_M193_STR-RECORD_TYPE2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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