ABAP Select data from SAP table FPAYP_DOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FPAYP_DOC
*  INTO TABLE @DATA(IT_FPAYP_DOC2).
*--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_FPAYP_DOC INDEX 1 INTO DATA(WA_FPAYP_DOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FPAYP_DOC>-DOC2T = 1.
<FPAYP_DOC>-DOC2R = 1.
<FPAYP_DOC>-VOR1T = 1.
<FPAYP_DOC>-VOR1R = 1.
<FPAYP_DOC>-VOR2T = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FPAYP_DOC-VOR2R, sy-vline,
  WA_FPAYP_DOC-BLDAT, sy-vline,
  WA_FPAYP_DOC-BUDAT, sy-vline,
  WA_FPAYP_DOC-FAEDT, sy-vline,
  WA_FPAYP_DOC-HWAER, sy-vline,
  WA_FPAYP_DOC-DMBTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FPAYP_DOC 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_FPAYP_DOC 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_FPAYP_DOC INTO WA_FPAYP_DOC.


*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_FPAYP_DOC_STR, 
DOC2T TYPE STRING,
DOC2R TYPE STRING,
VOR1T TYPE STRING,
VOR1R TYPE STRING,
VOR2T TYPE STRING,
VOR2R TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
FAEDT TYPE STRING,
HWAER TYPE STRING,
DMBTR TYPE STRING,
SKNTO TYPE STRING,
QSTEU TYPE STRING,
NETTO TYPE STRING,
ABZUG TYPE STRING,
ZBDXP TYPE STRING,
WAERS TYPE STRING,
WRBTR TYPE STRING,
WSKTO TYPE STRING,
WQSTE TYPE STRING,
WNETT TYPE STRING,
WABZG TYPE STRING,
PSWSL TYPE STRING,
PSWBT TYPE STRING,
PSSKT TYPE STRING,
POKEN TYPE STRING,
ZLSPR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FPAYP_DOC_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_FPAYP_DOC_STR-DOC2T sy-vline 
WA_FPAYP_DOC_STR-DOC2R sy-vline 
WA_FPAYP_DOC_STR-VOR1T sy-vline 
WA_FPAYP_DOC_STR-VOR1R sy-vline 
WA_FPAYP_DOC_STR-VOR2T sy-vline 
WA_FPAYP_DOC_STR-VOR2R sy-vline 
WA_FPAYP_DOC_STR-BLDAT sy-vline 
WA_FPAYP_DOC_STR-BUDAT sy-vline 
WA_FPAYP_DOC_STR-FAEDT sy-vline 
WA_FPAYP_DOC_STR-HWAER sy-vline 
WA_FPAYP_DOC_STR-DMBTR sy-vline 
WA_FPAYP_DOC_STR-SKNTO sy-vline 
WA_FPAYP_DOC_STR-QSTEU sy-vline 
WA_FPAYP_DOC_STR-NETTO sy-vline 
WA_FPAYP_DOC_STR-ABZUG sy-vline 
WA_FPAYP_DOC_STR-ZBDXP sy-vline 
WA_FPAYP_DOC_STR-WAERS sy-vline 
WA_FPAYP_DOC_STR-WRBTR sy-vline 
WA_FPAYP_DOC_STR-WSKTO sy-vline 
WA_FPAYP_DOC_STR-WQSTE sy-vline 
WA_FPAYP_DOC_STR-WNETT sy-vline 
WA_FPAYP_DOC_STR-WABZG sy-vline 
WA_FPAYP_DOC_STR-PSWSL sy-vline 
WA_FPAYP_DOC_STR-PSWBT sy-vline 
WA_FPAYP_DOC_STR-PSSKT sy-vline 
WA_FPAYP_DOC_STR-POKEN sy-vline 
WA_FPAYP_DOC_STR-ZLSPR sy-vline      INTO ld_text SEPARATED BY SPACE.

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