ABAP Select data from SAP table P0635 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P0635 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 P0635. 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 P0635 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_P0635 TYPE STANDARD TABLE OF P0635,
      WA_P0635 TYPE P0635,
      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: <P0635> TYPE P0635.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P0635.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P0635
  INTO TABLE IT_P0635.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P0635
*  INTO TABLE @DATA(IT_P06352).
*--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_P0635 INDEX 1 INTO DATA(WA_P06352).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P0635 ASSIGNING <P0635>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P0635>-PERNR = 1.
<P0635>-INFTY = 1.
<P0635>-SUBTY = 1.
<P0635>-OBJPS = 1.
<P0635>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_P0635 INTO WA_P0635.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P0635-ENDDA, sy-vline,
  WA_P0635-BEGDA, sy-vline,
  WA_P0635-SEQNR, sy-vline,
  WA_P0635-AEDTM, sy-vline,
  WA_P0635-UNAME, sy-vline,
  WA_P0635-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P0635 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_P0635 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_P0635 INTO WA_P0635.


*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_P0635_STR, 
PERNR TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
HISTO TYPE STRING,
ITXEX TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
ITBLD TYPE STRING,
PREAS TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
RESE1 TYPE STRING,
RESE2 TYPE STRING,
GRPVL TYPE STRING,
IVALT TYPE STRING,
OKTIN TYPE STRING,
KARNE TYPE STRING,
SZAKN TYPE STRING,
OKISZ TYPE STRING,
OKIDT TYPE STRING,
KEPNE TYPE STRING,
ISKVK TYPE STRING,
SZSZK TYPE STRING,
SZSZS TYPE STRING,
SZVSZ TYPE STRING,
SZVJK TYPE STRING,
SZVME TYPE STRING,
TFSZK TYPE STRING,
IDNYK TYPE STRING,
ANYFK TYPE STRING,
ANYTK TYPE STRING,
INYPJ TYPE STRING,
FELKO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P0635_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_P0635_STR-PERNR sy-vline 
WA_P0635_STR-INFTY sy-vline 
WA_P0635_STR-SUBTY sy-vline 
WA_P0635_STR-OBJPS sy-vline 
WA_P0635_STR-SPRPS sy-vline 
WA_P0635_STR-ENDDA sy-vline 
WA_P0635_STR-BEGDA sy-vline 
WA_P0635_STR-SEQNR sy-vline 
WA_P0635_STR-AEDTM sy-vline 
WA_P0635_STR-UNAME sy-vline 
WA_P0635_STR-HISTO sy-vline 
WA_P0635_STR-ITXEX sy-vline 
WA_P0635_STR-REFEX sy-vline 
WA_P0635_STR-ORDEX sy-vline 
WA_P0635_STR-ITBLD sy-vline 
WA_P0635_STR-PREAS sy-vline 
WA_P0635_STR-FLAG1 sy-vline 
WA_P0635_STR-FLAG2 sy-vline 
WA_P0635_STR-FLAG3 sy-vline 
WA_P0635_STR-FLAG4 sy-vline 
WA_P0635_STR-RESE1 sy-vline 
WA_P0635_STR-RESE2 sy-vline 
WA_P0635_STR-GRPVL sy-vline 
WA_P0635_STR-IVALT sy-vline 
WA_P0635_STR-OKTIN sy-vline 
WA_P0635_STR-KARNE sy-vline 
WA_P0635_STR-SZAKN sy-vline 
WA_P0635_STR-OKISZ sy-vline 
WA_P0635_STR-OKIDT sy-vline 
WA_P0635_STR-KEPNE sy-vline 
WA_P0635_STR-ISKVK sy-vline 
WA_P0635_STR-SZSZK sy-vline 
WA_P0635_STR-SZSZS sy-vline 
WA_P0635_STR-SZVSZ sy-vline 
WA_P0635_STR-SZVJK sy-vline 
WA_P0635_STR-SZVME sy-vline 
WA_P0635_STR-TFSZK sy-vline 
WA_P0635_STR-IDNYK sy-vline 
WA_P0635_STR-ANYFK sy-vline 
WA_P0635_STR-ANYTK sy-vline 
WA_P0635_STR-INYPJ sy-vline 
WA_P0635_STR-FELKO sy-vline      INTO ld_text SEPARATED BY SPACE.

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