ABAP Select data from SAP table P0846 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P0846 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 P0846. 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 P0846 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_P0846 TYPE STANDARD TABLE OF P0846,
      WA_P0846 TYPE P0846,
      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: <P0846> TYPE P0846.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P0846.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P0846
  INTO TABLE IT_P0846.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P0846
*  INTO TABLE @DATA(IT_P08462).
*--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_P0846 INDEX 1 INTO DATA(WA_P08462).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P0846 ASSIGNING <P0846>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P0846>-PERNR = 1.
<P0846>-INFTY = 1.
<P0846>-SUBTY = 1.
<P0846>-OBJPS = 1.
<P0846>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_P0846 INTO WA_P0846.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P0846-ENDDA, sy-vline,
  WA_P0846-BEGDA, sy-vline,
  WA_P0846-SEQNR, sy-vline,
  WA_P0846-AEDTM, sy-vline,
  WA_P0846-UNAME, sy-vline,
  WA_P0846-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P0846 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_P0846 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_P0846 INTO WA_P0846.


*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_P0846_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,
RGFZW TYPE STRING,
RGFZU TYPE STRING,
ERGR1 TYPE STRING,
ERGR2 TYPE STRING,
ERGR3 TYPE STRING,
MASCH_1 TYPE STRING,
MANU_1 TYPE STRING,
MASCH_2 TYPE STRING,
MANU_2 TYPE STRING,
MASCH_3 TYPE STRING,
MANU_3 TYPE STRING,
ANZ_WITWE TYPE STRING,
PRZNT_WITWE TYPE STRING,
ANZ_HALBWAISE TYPE STRING,
PRZNT_HALBWAISE TYPE STRING,
ANZ_VOLLWAISE TYPE STRING,
PRZNT_VOLLWAISE TYPE STRING,
ERSTBETRG_MAN TYPE STRING,
ERST_MAN_WAERS TYPE STRING,
DATUM_TARIFERH TYPE STRING,
PRZNT_TARIFERH TYPE STRING,
DATUM_ZAHLEIN TYPE STRING,
BETRG_ZAHLEIN TYPE STRING,
WAERS_ZAHLEIN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P0846_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_P0846_STR-PERNR sy-vline 
WA_P0846_STR-INFTY sy-vline 
WA_P0846_STR-SUBTY sy-vline 
WA_P0846_STR-OBJPS sy-vline 
WA_P0846_STR-SPRPS sy-vline 
WA_P0846_STR-ENDDA sy-vline 
WA_P0846_STR-BEGDA sy-vline 
WA_P0846_STR-SEQNR sy-vline 
WA_P0846_STR-AEDTM sy-vline 
WA_P0846_STR-UNAME sy-vline 
WA_P0846_STR-HISTO sy-vline 
WA_P0846_STR-ITXEX sy-vline 
WA_P0846_STR-REFEX sy-vline 
WA_P0846_STR-ORDEX sy-vline 
WA_P0846_STR-ITBLD sy-vline 
WA_P0846_STR-PREAS sy-vline 
WA_P0846_STR-FLAG1 sy-vline 
WA_P0846_STR-FLAG2 sy-vline 
WA_P0846_STR-FLAG3 sy-vline 
WA_P0846_STR-FLAG4 sy-vline 
WA_P0846_STR-RESE1 sy-vline 
WA_P0846_STR-RESE2 sy-vline 
WA_P0846_STR-GRPVL sy-vline 
WA_P0846_STR-RGFZW sy-vline 
WA_P0846_STR-RGFZU sy-vline 
WA_P0846_STR-ERGR1 sy-vline 
WA_P0846_STR-ERGR2 sy-vline 
WA_P0846_STR-ERGR3 sy-vline 
WA_P0846_STR-MASCH_1 sy-vline 
WA_P0846_STR-MANU_1 sy-vline 
WA_P0846_STR-MASCH_2 sy-vline 
WA_P0846_STR-MANU_2 sy-vline 
WA_P0846_STR-MASCH_3 sy-vline 
WA_P0846_STR-MANU_3 sy-vline 
WA_P0846_STR-ANZ_WITWE sy-vline 
WA_P0846_STR-PRZNT_WITWE sy-vline 
WA_P0846_STR-ANZ_HALBWAISE sy-vline 
WA_P0846_STR-PRZNT_HALBWAISE sy-vline 
WA_P0846_STR-ANZ_VOLLWAISE sy-vline 
WA_P0846_STR-PRZNT_VOLLWAISE sy-vline 
WA_P0846_STR-ERSTBETRG_MAN sy-vline 
WA_P0846_STR-ERST_MAN_WAERS sy-vline 
WA_P0846_STR-DATUM_TARIFERH sy-vline 
WA_P0846_STR-PRZNT_TARIFERH sy-vline 
WA_P0846_STR-DATUM_ZAHLEIN sy-vline 
WA_P0846_STR-BETRG_ZAHLEIN sy-vline 
WA_P0846_STR-WAERS_ZAHLEIN sy-vline      INTO ld_text SEPARATED BY SPACE.

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