ABAP Select data from SAP table P0834 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P0834 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 P0834. 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 P0834 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_P0834 TYPE STANDARD TABLE OF P0834,
      WA_P0834 TYPE P0834,
      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: <P0834> TYPE P0834.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P0834.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P0834
  INTO TABLE IT_P0834.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P0834
*  INTO TABLE @DATA(IT_P08342).
*--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_P0834 INDEX 1 INTO DATA(WA_P08342).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P0834 ASSIGNING <P0834>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P0834>-PERNR = 1.
<P0834>-INFTY = 1.
<P0834>-SUBTY = 1.
<P0834>-OBJPS = 1.
<P0834>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_P0834 INTO WA_P0834.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P0834-ENDDA, sy-vline,
  WA_P0834-BEGDA, sy-vline,
  WA_P0834-SEQNR, sy-vline,
  WA_P0834-AEDTM, sy-vline,
  WA_P0834-UNAME, sy-vline,
  WA_P0834-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P0834 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_P0834 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_P0834 INTO WA_P0834.


*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_P0834_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,
ABWTG TYPE STRING,
KALTG TYPE STRING,
BEGVA TYPE STRING,
ENDVA TYPE STRING,
FPVAC TYPE STRING,
OCRSN TYPE STRING,
PAYTY TYPE STRING,
PAYID TYPE STRING,
BONDT TYPE STRING,
DOCNR TYPE STRING,
ANZHL TYPE STRING,
ABRST TYPE STRING,
AWART TYPE STRING,
DYQUO TYPE STRING,
DYPRV TYPE STRING,
STDAZ TYPE STRING,
AWAVS TYPE STRING,
ABWVS TYPE STRING,
KALVS TYPE STRING,
ANZVS TYPE STRING,
ABRVS TYPE STRING,
INDVS TYPE STRING,
STDVS TYPE STRING,
BEGVS TYPE STRING,
ENDVS TYPE STRING,
AWAVD TYPE STRING,
ABWVD TYPE STRING,
KALVD TYPE STRING,
ANZVD TYPE STRING,
ABRVD TYPE STRING,
STDVD TYPE STRING,
BEGVD TYPE STRING,
ENDVD TYPE STRING,
ABWVD1 TYPE STRING,
KALVD1 TYPE STRING,
ANZVD1 TYPE STRING,
ABRVD1 TYPE STRING,
STDVD1 TYPE STRING,
BEGVD1 TYPE STRING,
ENDVD1 TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P0834_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_P0834_STR-PERNR sy-vline 
WA_P0834_STR-INFTY sy-vline 
WA_P0834_STR-SUBTY sy-vline 
WA_P0834_STR-OBJPS sy-vline 
WA_P0834_STR-SPRPS sy-vline 
WA_P0834_STR-ENDDA sy-vline 
WA_P0834_STR-BEGDA sy-vline 
WA_P0834_STR-SEQNR sy-vline 
WA_P0834_STR-AEDTM sy-vline 
WA_P0834_STR-UNAME sy-vline 
WA_P0834_STR-HISTO sy-vline 
WA_P0834_STR-ITXEX sy-vline 
WA_P0834_STR-REFEX sy-vline 
WA_P0834_STR-ORDEX sy-vline 
WA_P0834_STR-ITBLD sy-vline 
WA_P0834_STR-PREAS sy-vline 
WA_P0834_STR-FLAG1 sy-vline 
WA_P0834_STR-FLAG2 sy-vline 
WA_P0834_STR-FLAG3 sy-vline 
WA_P0834_STR-FLAG4 sy-vline 
WA_P0834_STR-RESE1 sy-vline 
WA_P0834_STR-RESE2 sy-vline 
WA_P0834_STR-GRPVL sy-vline 
WA_P0834_STR-ABWTG sy-vline 
WA_P0834_STR-KALTG sy-vline 
WA_P0834_STR-BEGVA sy-vline 
WA_P0834_STR-ENDVA sy-vline 
WA_P0834_STR-FPVAC sy-vline 
WA_P0834_STR-OCRSN sy-vline 
WA_P0834_STR-PAYTY sy-vline 
WA_P0834_STR-PAYID sy-vline 
WA_P0834_STR-BONDT sy-vline 
WA_P0834_STR-DOCNR sy-vline 
WA_P0834_STR-ANZHL sy-vline 
WA_P0834_STR-ABRST sy-vline 
WA_P0834_STR-AWART sy-vline 
WA_P0834_STR-DYQUO sy-vline 
WA_P0834_STR-DYPRV sy-vline 
WA_P0834_STR-STDAZ sy-vline 
WA_P0834_STR-AWAVS sy-vline 
WA_P0834_STR-ABWVS sy-vline 
WA_P0834_STR-KALVS sy-vline 
WA_P0834_STR-ANZVS sy-vline 
WA_P0834_STR-ABRVS sy-vline 
WA_P0834_STR-INDVS sy-vline 
WA_P0834_STR-STDVS sy-vline 
WA_P0834_STR-BEGVS sy-vline 
WA_P0834_STR-ENDVS sy-vline 
WA_P0834_STR-AWAVD sy-vline 
WA_P0834_STR-ABWVD sy-vline 
WA_P0834_STR-KALVD sy-vline 
WA_P0834_STR-ANZVD sy-vline 
WA_P0834_STR-ABRVD sy-vline 
WA_P0834_STR-STDVD sy-vline 
WA_P0834_STR-BEGVD sy-vline 
WA_P0834_STR-ENDVD sy-vline 
WA_P0834_STR-ABWVD1 sy-vline 
WA_P0834_STR-KALVD1 sy-vline 
WA_P0834_STR-ANZVD1 sy-vline 
WA_P0834_STR-ABRVD1 sy-vline 
WA_P0834_STR-STDVD1 sy-vline 
WA_P0834_STR-BEGVD1 sy-vline 
WA_P0834_STR-ENDVD1 sy-vline 
WA_P0834_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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