ABAP Select data from SAP table FWOT_0400T into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FWOT_0400T 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_0400T. 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_0400T 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_0400T TYPE STANDARD TABLE OF FWOT_0400T,
      WA_FWOT_0400T TYPE FWOT_0400T,
      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_0400T> TYPE FWOT_0400T.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FWOT_0400T.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FWOT_0400T
  INTO TABLE IT_FWOT_0400T.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FWOT_0400T
*  INTO TABLE @DATA(IT_FWOT_0400T2).
*--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_0400T INDEX 1 INTO DATA(WA_FWOT_0400T2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FWOT_0400T ASSIGNING <FWOT_0400T>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FWOT_0400T>-RPNNR = 1.
<FWOT_0400T>-RANL = 1.
<FWOT_0400T>-RLDEPO = 1.
<FWOT_0400T>-DBESTAND = 1.
<FWOT_0400T>-SBEWART = 1.

ENDLOOP.

LOOP AT IT_FWOT_0400T INTO WA_FWOT_0400T.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FWOT_0400T-XBEWART, sy-vline,
  WA_FWOT_0400T-SFLOW_STATE, sy-vline,
  WA_FWOT_0400T-BCWHR, sy-vline,
  WA_FWOT_0400T-SCWHR, sy-vline,
  WA_FWOT_0400T-BBWHR, sy-vline,
  WA_FWOT_0400T-SBWHR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FWOT_0400T 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_0400T 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_0400T INTO WA_FWOT_0400T.


*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 ALPHA, internal->external for field RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FWOT_0400T-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FWOT_0400T-RANL.
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_FWOT_0400T_STR, 
RPNNR TYPE STRING,
RANL TYPE STRING,
RLDEPO TYPE STRING,
DBESTAND TYPE STRING,
SBEWART TYPE STRING,
XBEWART TYPE STRING,
SFLOW_STATE TYPE STRING,
BCWHR TYPE STRING,
SCWHR TYPE STRING,
BBWHR TYPE STRING,
SBWHR TYPE STRING,
BHWHR TYPE STRING,
SHWHR TYPE STRING,
ASTUECK TYPE STRING,
BNWHR TYPE STRING,
DVALUT TYPE STRING,
DFAELL TYPE STRING,
DDISPO TYPE STRING,
SBEWZITI TYPE STRING,
SPLANIST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FWOT_0400T_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_0400T_STR-RPNNR sy-vline 
WA_FWOT_0400T_STR-RANL sy-vline 
WA_FWOT_0400T_STR-RLDEPO sy-vline 
WA_FWOT_0400T_STR-DBESTAND sy-vline 
WA_FWOT_0400T_STR-SBEWART sy-vline 
WA_FWOT_0400T_STR-XBEWART sy-vline 
WA_FWOT_0400T_STR-SFLOW_STATE sy-vline 
WA_FWOT_0400T_STR-BCWHR sy-vline 
WA_FWOT_0400T_STR-SCWHR sy-vline 
WA_FWOT_0400T_STR-BBWHR sy-vline 
WA_FWOT_0400T_STR-SBWHR sy-vline 
WA_FWOT_0400T_STR-BHWHR sy-vline 
WA_FWOT_0400T_STR-SHWHR sy-vline 
WA_FWOT_0400T_STR-ASTUECK sy-vline 
WA_FWOT_0400T_STR-BNWHR sy-vline 
WA_FWOT_0400T_STR-DVALUT sy-vline 
WA_FWOT_0400T_STR-DFAELL sy-vline 
WA_FWOT_0400T_STR-DDISPO sy-vline 
WA_FWOT_0400T_STR-SBEWZITI sy-vline 
WA_FWOT_0400T_STR-SPLANIST sy-vline      INTO ld_text SEPARATED BY SPACE.

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