ABAP Select data from SAP table CACSFA_S_DOCFA_PD_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CACSFA_S_DOCFA_PD_D
*  INTO TABLE @DATA(IT_CACSFA_S_DOCFA_PD_D2).
*--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_CACSFA_S_DOCFA_PD_D INDEX 1 INTO DATA(WA_CACSFA_S_DOCFA_PD_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CACSFA_S_DOCFA_PD_D>-BUKRS = 1.
<CACSFA_S_DOCFA_PD_D>-GPART = 1.
<CACSFA_S_DOCFA_PD_D>-VKONT = 1.
<CACSFA_S_DOCFA_PD_D>-KEYID = 1.
<CACSFA_S_DOCFA_PD_D>-PAYKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CACSFA_S_DOCFA_PD_D-PAYTYP, sy-vline,
  WA_CACSFA_S_DOCFA_PD_D-BETRW, sy-vline,
  WA_CACSFA_S_DOCFA_PD_D-WAERS, sy-vline,
  WA_CACSFA_S_DOCFA_PD_D-CHDSK, sy-vline,
  WA_CACSFA_S_DOCFA_PD_D-OFFICE, sy-vline,
  WA_CACSFA_S_DOCFA_PD_D-XDOC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CACSFA_S_DOCFA_PD_D 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_CACSFA_S_DOCFA_PD_D 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_CACSFA_S_DOCFA_PD_D INTO WA_CACSFA_S_DOCFA_PD_D.


*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 GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CACSFA_S_DOCFA_PD_D-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACSFA_S_DOCFA_PD_D-GPART.
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_CACSFA_S_DOCFA_PD_D_STR, 
BUKRS TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
KEYID TYPE STRING,
PAYKEY TYPE STRING,
PAYTYP TYPE STRING,
BETRW TYPE STRING,
WAERS TYPE STRING,
CHDSK TYPE STRING,
OFFICE TYPE STRING,
XDOC TYPE STRING,
SETTP TYPE STRING,
DUE_CONAMNT TYPE STRING,
STORN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CACSFA_S_DOCFA_PD_D_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_CACSFA_S_DOCFA_PD_D_STR-BUKRS sy-vline 
WA_CACSFA_S_DOCFA_PD_D_STR-GPART sy-vline 
WA_CACSFA_S_DOCFA_PD_D_STR-VKONT sy-vline 
WA_CACSFA_S_DOCFA_PD_D_STR-KEYID sy-vline 
WA_CACSFA_S_DOCFA_PD_D_STR-PAYKEY sy-vline 
WA_CACSFA_S_DOCFA_PD_D_STR-PAYTYP sy-vline 
WA_CACSFA_S_DOCFA_PD_D_STR-BETRW sy-vline 
WA_CACSFA_S_DOCFA_PD_D_STR-WAERS sy-vline 
WA_CACSFA_S_DOCFA_PD_D_STR-CHDSK sy-vline 
WA_CACSFA_S_DOCFA_PD_D_STR-OFFICE sy-vline 
WA_CACSFA_S_DOCFA_PD_D_STR-XDOC sy-vline 
WA_CACSFA_S_DOCFA_PD_D_STR-SETTP sy-vline 
WA_CACSFA_S_DOCFA_PD_D_STR-DUE_CONAMNT sy-vline 
WA_CACSFA_S_DOCFA_PD_D_STR-STORN sy-vline      INTO ld_text SEPARATED BY SPACE.

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