ABAP Select data from SAP table /SAPAPO/DP440G into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPAPO/DP440G 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 /SAPAPO/DP440G. 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 /SAPAPO/DP440G 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_/SAPAPO/DP440G TYPE STANDARD TABLE OF /SAPAPO/DP440G,
      WA_/SAPAPO/DP440G TYPE /SAPAPO/DP440G,
      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: </SAPAPO/DP440G> TYPE /SAPAPO/DP440G.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SAPAPO/DP440G.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/DP440G
  INTO TABLE IT_/SAPAPO/DP440G.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/DP440G
*  INTO TABLE @DATA(IT_/SAPAPO/DP440G2).
*--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_/SAPAPO/DP440G INDEX 1 INTO DATA(WA_/SAPAPO/DP440G2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/DP440G ASSIGNING </SAPAPO/DP440G>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/DP440G>-MANDT = 1.
</SAPAPO/DP440G>-PRPFL = 1.
</SAPAPO/DP440G>-ICUBE = 1.
</SAPAPO/DP440G>-PAREAID = 1.
</SAPAPO/DP440G>-PAREANAME = 1.

ENDLOOP.

LOOP AT IT_/SAPAPO/DP440G INTO WA_/SAPAPO/DP440G.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/DP440G-GUID, sy-vline,
  WA_/SAPAPO/DP440G-PFITX, sy-vline,
  WA_/SAPAPO/DP440G-SELECTIONID, sy-vline,
  WA_/SAPAPO/DP440G-KENNZ, sy-vline,
  WA_/SAPAPO/DP440G-PERKZ, sy-vline,
  WA_/SAPAPO/DP440G-PERIV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/DP440G 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_/SAPAPO/DP440G 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_/SAPAPO/DP440G INTO WA_/SAPAPO/DP440G.


*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 SPARE, internal->external for field PAREAID
CALL FUNCTION 'CONVERSION_EXIT_SPARE_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/DP440G-PAREAID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/DP440G-PAREAID.
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_/SAPAPO/DP440G_STR, 
MANDT TYPE STRING,
PRPFL TYPE STRING,
ICUBE TYPE STRING,
PAREAID TYPE STRING,
PAREANAME TYPE STRING,
GUID TYPE STRING,
PFITX TYPE STRING,
SELECTIONID TYPE STRING,
KENNZ TYPE STRING,
PERKZ TYPE STRING,
PERIV TYPE STRING,
FABKL TYPE STRING,
TBID TYPE STRING,
VOPER TYPE STRING,
BIPER TYPE STRING,
VGVON TYPE STRING,
VGBIS TYPE STRING,
PERAN TYPE STRING,
PERAN_LAG TYPE STRING,
ANZPR TYPE STRING,
ANZPR_LAG TYPE STRING,
LIKEID TYPE STRING,
PHIN_TSID TYPE STRING,
PHOUT_TSID TYPE STRING,
FLG_COMP TYPE STRING,
COMPPF TYPE STRING,
FLG_MLR TYPE STRING,
MLRPF TYPE STRING,
FLG_STAT TYPE STRING,
STATPF TYPE STRING,
FLG_MATPROG TYPE STRING,
ALPROF TYPE STRING,
CDAT TYPE STRING,
CTIME TYPE STRING,
AUTOR TYPE STRING,
UDAT TYPE STRING,
UPNAM TYPE STRING,
UTIME TYPE STRING,
NO_REESTIMATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/DP440G_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_/SAPAPO/DP440G_STR-MANDT sy-vline 
WA_/SAPAPO/DP440G_STR-PRPFL sy-vline 
WA_/SAPAPO/DP440G_STR-ICUBE sy-vline 
WA_/SAPAPO/DP440G_STR-PAREAID sy-vline 
WA_/SAPAPO/DP440G_STR-PAREANAME sy-vline 
WA_/SAPAPO/DP440G_STR-GUID sy-vline 
WA_/SAPAPO/DP440G_STR-PFITX sy-vline 
WA_/SAPAPO/DP440G_STR-SELECTIONID sy-vline 
WA_/SAPAPO/DP440G_STR-KENNZ sy-vline 
WA_/SAPAPO/DP440G_STR-PERKZ sy-vline 
WA_/SAPAPO/DP440G_STR-PERIV sy-vline 
WA_/SAPAPO/DP440G_STR-FABKL sy-vline 
WA_/SAPAPO/DP440G_STR-TBID sy-vline 
WA_/SAPAPO/DP440G_STR-VOPER sy-vline 
WA_/SAPAPO/DP440G_STR-BIPER sy-vline 
WA_/SAPAPO/DP440G_STR-VGVON sy-vline 
WA_/SAPAPO/DP440G_STR-VGBIS sy-vline 
WA_/SAPAPO/DP440G_STR-PERAN sy-vline 
WA_/SAPAPO/DP440G_STR-PERAN_LAG sy-vline 
WA_/SAPAPO/DP440G_STR-ANZPR sy-vline 
WA_/SAPAPO/DP440G_STR-ANZPR_LAG sy-vline 
WA_/SAPAPO/DP440G_STR-LIKEID sy-vline 
WA_/SAPAPO/DP440G_STR-PHIN_TSID sy-vline 
WA_/SAPAPO/DP440G_STR-PHOUT_TSID sy-vline 
WA_/SAPAPO/DP440G_STR-FLG_COMP sy-vline 
WA_/SAPAPO/DP440G_STR-COMPPF sy-vline 
WA_/SAPAPO/DP440G_STR-FLG_MLR sy-vline 
WA_/SAPAPO/DP440G_STR-MLRPF sy-vline 
WA_/SAPAPO/DP440G_STR-FLG_STAT sy-vline 
WA_/SAPAPO/DP440G_STR-STATPF sy-vline 
WA_/SAPAPO/DP440G_STR-FLG_MATPROG sy-vline 
WA_/SAPAPO/DP440G_STR-ALPROF sy-vline 
WA_/SAPAPO/DP440G_STR-CDAT sy-vline 
WA_/SAPAPO/DP440G_STR-CTIME sy-vline 
WA_/SAPAPO/DP440G_STR-AUTOR sy-vline 
WA_/SAPAPO/DP440G_STR-UDAT sy-vline 
WA_/SAPAPO/DP440G_STR-UPNAM sy-vline 
WA_/SAPAPO/DP440G_STR-UTIME sy-vline 
WA_/SAPAPO/DP440G_STR-NO_REESTIMATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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