ABAP Select data from SAP table FWOT_0600 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FWOT_0600 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 FWOT_0600. 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 FWOT_0600 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_FWOT_0600 TYPE STANDARD TABLE OF FWOT_0600,
      WA_FWOT_0600 TYPE FWOT_0600,
      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: <FWOT_0600> TYPE FWOT_0600.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FWOT_0600.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FWOT_0600
  INTO TABLE IT_FWOT_0600.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FWOT_0600
*  INTO TABLE @DATA(IT_FWOT_06002).
*--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_FWOT_0600 INDEX 1 INTO DATA(WA_FWOT_06002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FWOT_0600 ASSIGNING <FWOT_0600>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FWOT_0600>-SBEWART = 1.
<FWOT_0600>-XBEWART = 1.
<FWOT_0600>-SSWHR = 1.
<FWOT_0600>-BSWHR = 1.
<FWOT_0600>-SCWHR = 1.

ENDLOOP.

LOOP AT IT_FWOT_0600 INTO WA_FWOT_0600.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FWOT_0600-BCWHR, sy-vline,
  WA_FWOT_0600-SBWHR, sy-vline,
  WA_FWOT_0600-BBWHR, sy-vline,
  WA_FWOT_0600-SHWHR, sy-vline,
  WA_FWOT_0600-BHWHR, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_FWOT_0600 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_FWOT_0600 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_FWOT_0600 INTO WA_FWOT_0600.


*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_FWOT_0600_STR, 
SBEWART TYPE STRING,
XBEWART TYPE STRING,
SSWHR TYPE STRING,
BSWHR TYPE STRING,
SCWHR TYPE STRING,
BCWHR TYPE STRING,
SBWHR TYPE STRING,
BBWHR TYPE STRING,
SHWHR TYPE STRING,
BHWHR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FWOT_0600_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_FWOT_0600_STR-SBEWART sy-vline 
WA_FWOT_0600_STR-XBEWART sy-vline 
WA_FWOT_0600_STR-SSWHR sy-vline 
WA_FWOT_0600_STR-BSWHR sy-vline 
WA_FWOT_0600_STR-SCWHR sy-vline 
WA_FWOT_0600_STR-BCWHR sy-vline 
WA_FWOT_0600_STR-SBWHR sy-vline 
WA_FWOT_0600_STR-BBWHR sy-vline 
WA_FWOT_0600_STR-SHWHR sy-vline 
WA_FWOT_0600_STR-BHWHR sy-vline      INTO ld_text SEPARATED BY SPACE.

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