ABAP Select data from SAP table FIWTUS_S_1099G_FILE_REC_C into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FIWTUS_S_1099G_FILE_REC_C 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 FIWTUS_S_1099G_FILE_REC_C. 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 FIWTUS_S_1099G_FILE_REC_C 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_FIWTUS_S_1099G_FILE_REC_C TYPE STANDARD TABLE OF FIWTUS_S_1099G_FILE_REC_C,
      WA_FIWTUS_S_1099G_FILE_REC_C TYPE FIWTUS_S_1099G_FILE_REC_C,
      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: <FIWTUS_S_1099G_FILE_REC_C> TYPE FIWTUS_S_1099G_FILE_REC_C.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FIWTUS_S_1099G_FILE_REC_C.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FIWTUS_S_1099G_FILE_REC_C
  INTO TABLE IT_FIWTUS_S_1099G_FILE_REC_C.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIWTUS_S_1099G_FILE_REC_C
*  INTO TABLE @DATA(IT_FIWTUS_S_1099G_FILE_REC_C2).
*--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_FIWTUS_S_1099G_FILE_REC_C INDEX 1 INTO DATA(WA_FIWTUS_S_1099G_FILE_REC_C2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FIWTUS_S_1099G_FILE_REC_C ASSIGNING <FIWTUS_S_1099G_FILE_REC_C>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIWTUS_S_1099G_FILE_REC_C>-RECORD_TYPE = 1.
<FIWTUS_S_1099G_FILE_REC_C>-NUMBER_OF_PAYEE = 1.
<FIWTUS_S_1099G_FILE_REC_C>-BLANK1 = 1.
<FIWTUS_S_1099G_FILE_REC_C>-CONTROL_TOTAL_1 = 1.
<FIWTUS_S_1099G_FILE_REC_C>-CONTROL_TOTAL_2 = 1.

ENDLOOP.

LOOP AT IT_FIWTUS_S_1099G_FILE_REC_C INTO WA_FIWTUS_S_1099G_FILE_REC_C.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIWTUS_S_1099G_FILE_REC_C-CONTROL_TOTAL_3, sy-vline,
  WA_FIWTUS_S_1099G_FILE_REC_C-CONTROL_TOTAL_4, sy-vline,
  WA_FIWTUS_S_1099G_FILE_REC_C-CONTROL_TOTAL_5, sy-vline,
  WA_FIWTUS_S_1099G_FILE_REC_C-CONTROL_TOTAL_6, sy-vline,
  WA_FIWTUS_S_1099G_FILE_REC_C-CONTROL_TOTAL_7, sy-vline,
  WA_FIWTUS_S_1099G_FILE_REC_C-CONTROL_TOTAL_8, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIWTUS_S_1099G_FILE_REC_C 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_FIWTUS_S_1099G_FILE_REC_C 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_FIWTUS_S_1099G_FILE_REC_C INTO WA_FIWTUS_S_1099G_FILE_REC_C.


*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_FIWTUS_S_1099G_FILE_REC_C_STR, 
RECORD_TYPE TYPE STRING,
NUMBER_OF_PAYEE TYPE STRING,
BLANK1 TYPE STRING,
CONTROL_TOTAL_1 TYPE STRING,
CONTROL_TOTAL_2 TYPE STRING,
CONTROL_TOTAL_3 TYPE STRING,
CONTROL_TOTAL_4 TYPE STRING,
CONTROL_TOTAL_5 TYPE STRING,
CONTROL_TOTAL_6 TYPE STRING,
CONTROL_TOTAL_7 TYPE STRING,
CONTROL_TOTAL_8 TYPE STRING,
CONTROL_TOTAL_9 TYPE STRING,
CONTROL_TOTAL_A TYPE STRING,
CONTROL_TOTAL_B TYPE STRING,
CONTROL_TOTAL_C TYPE STRING,
CONTROL_TOTAL_D TYPE STRING,
CONTROL_TOTAL_E TYPE STRING,
CONTROL_TOTAL_F TYPE STRING,
CONTROL_TOTAL_G TYPE STRING,
BLANK2 TYPE STRING,
RECORD_SEQUENCE_NUMBER TYPE STRING,
BLANK3 TYPE STRING,
BLANK4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIWTUS_S_1099G_FILE_REC_C_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_FIWTUS_S_1099G_FILE_REC_C_STR-RECORD_TYPE sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-NUMBER_OF_PAYEE sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-BLANK1 sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_1 sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_2 sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_3 sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_4 sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_5 sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_6 sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_7 sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_8 sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_9 sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_A sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_B sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_C sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_D sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_E sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_F sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-CONTROL_TOTAL_G sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-BLANK2 sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-RECORD_SEQUENCE_NUMBER sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-BLANK3 sy-vline 
WA_FIWTUS_S_1099G_FILE_REC_C_STR-BLANK4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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