ABAP Select data from SAP table Q0PDU into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q0PDU 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 Q0PDU. 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 Q0PDU 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_Q0PDU TYPE STANDARD TABLE OF Q0PDU,
      WA_Q0PDU TYPE Q0PDU,
      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: <Q0PDU> TYPE Q0PDU.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q0PDU.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q0PDU
  INTO TABLE IT_Q0PDU.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q0PDU
*  INTO TABLE @DATA(IT_Q0PDU2).
*--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_Q0PDU INDEX 1 INTO DATA(WA_Q0PDU2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q0PDU ASSIGNING <Q0PDU>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q0PDU>-TYPHD = 1.
<Q0PDU>-TYP10 = 1.
<Q0PDU>-TYP11 = 1.
<Q0PDU>-TYP12 = 1.
<Q0PDU>-TYP13 = 1.

ENDLOOP.

LOOP AT IT_Q0PDU INTO WA_Q0PDU.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q0PDU-TYP14, sy-vline,
  WA_Q0PDU-TYP15, sy-vline,
  WA_Q0PDU-TYP16, sy-vline,
  WA_Q0PDU-TYP17, sy-vline,
  WA_Q0PDU-TYP18, sy-vline,
  WA_Q0PDU-TYP19, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q0PDU 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_Q0PDU 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_Q0PDU INTO WA_Q0PDU.


*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_Q0PDU_STR, 
TYPHD TYPE STRING,
TYP10 TYPE STRING,
TYP11 TYPE STRING,
TYP12 TYPE STRING,
TYP13 TYPE STRING,
TYP14 TYPE STRING,
TYP15 TYPE STRING,
TYP16 TYPE STRING,
TYP17 TYPE STRING,
TYP18 TYPE STRING,
TYP19 TYPE STRING,
TYP1A TYPE STRING,
TYP1N TYPE STRING,
TYP20 TYPE STRING,
TYP21 TYPE STRING,
TYP22 TYPE STRING,
TYP23 TYPE STRING,
TYP24 TYPE STRING,
TYP25 TYPE STRING,
TYP26 TYPE STRING,
TYP27 TYPE STRING,
TYP28 TYPE STRING,
TYP29 TYPE STRING,
TYP2A TYPE STRING,
TYP2N TYPE STRING,
TYP30 TYPE STRING,
TYP31 TYPE STRING,
TYP32 TYPE STRING,
TYP33 TYPE STRING,
TYP34 TYPE STRING,
TYP35 TYPE STRING,
TYP36 TYPE STRING,
TYP37 TYPE STRING,
TYP38 TYPE STRING,
TYP39 TYPE STRING,
TYP3A TYPE STRING,
TYP3N TYPE STRING,
LFDBZ TYPE STRING,
EINBZ TYPE STRING,
PUSHB TYPE STRING,
ICO41 TYPE STRING,
ICO42 TYPE STRING,
ICO43 TYPE STRING,
ICO44 TYPE STRING,
FKTID_TXT TYPE STRING,
REGRB_TXT TYPE STRING,
YEAAZ TYPE STRING,
MONAZ TYPE STRING,
ANZHL TYPE STRING,
KOMNR_VAL TYPE STRING,
RULCV TYPE STRING,
GRTP4_TXT TYPE STRING,
KZATM_TXT TYPE STRING,
VRFKZ_TXT TYPE STRING,
RDBEI_TXT TYPE STRING,
KZDAR_TXT TYPE STRING,
ZWEND_TXT TYPE STRING,
ZRMKZ_TXT TYPE STRING,
ZRUMR_TXT TYPE STRING,
MOZBV_TXT TYPE STRING,
MOBBV_TXT TYPE STRING,
BBZRM_TXT TYPE STRING,
L2UMT_TXT TYPE STRING,
WZMTH_TXT TYPE STRING,
RDWZT_TXT TYPE STRING,
L2WMT_TXT TYPE STRING,
VRFKO_VAL TYPE STRING,
STTYP_TXT TYPE STRING,
VSTTY_TXT TYPE STRING,
NOZUS TYPE STRING,
PRMSI TYPE STRING,
PRYSI TYPE STRING,
NOABS TYPE STRING,
PRMVI TYPE STRING,
PRYVI TYPE STRING,
RNDVI_TXT TYPE STRING,
RNDSI_TXT TYPE STRING,
ANTYP_TXT TYPE STRING,
ANTYP_HDR TYPE STRING,
LGAIN TYPE STRING,
LGAEX TYPE STRING,
DTYPE_TXT TYPE STRING,
LPAGE_TXT TYPE STRING,
IDVTX TYPE STRING,
GSALL TYPE STRING,
GSMAN TYPE STRING,
GSFRA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q0PDU_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_Q0PDU_STR-TYPHD sy-vline 
WA_Q0PDU_STR-TYP10 sy-vline 
WA_Q0PDU_STR-TYP11 sy-vline 
WA_Q0PDU_STR-TYP12 sy-vline 
WA_Q0PDU_STR-TYP13 sy-vline 
WA_Q0PDU_STR-TYP14 sy-vline 
WA_Q0PDU_STR-TYP15 sy-vline 
WA_Q0PDU_STR-TYP16 sy-vline 
WA_Q0PDU_STR-TYP17 sy-vline 
WA_Q0PDU_STR-TYP18 sy-vline 
WA_Q0PDU_STR-TYP19 sy-vline 
WA_Q0PDU_STR-TYP1A sy-vline 
WA_Q0PDU_STR-TYP1N sy-vline 
WA_Q0PDU_STR-TYP20 sy-vline 
WA_Q0PDU_STR-TYP21 sy-vline 
WA_Q0PDU_STR-TYP22 sy-vline 
WA_Q0PDU_STR-TYP23 sy-vline 
WA_Q0PDU_STR-TYP24 sy-vline 
WA_Q0PDU_STR-TYP25 sy-vline 
WA_Q0PDU_STR-TYP26 sy-vline 
WA_Q0PDU_STR-TYP27 sy-vline 
WA_Q0PDU_STR-TYP28 sy-vline 
WA_Q0PDU_STR-TYP29 sy-vline 
WA_Q0PDU_STR-TYP2A sy-vline 
WA_Q0PDU_STR-TYP2N sy-vline 
WA_Q0PDU_STR-TYP30 sy-vline 
WA_Q0PDU_STR-TYP31 sy-vline 
WA_Q0PDU_STR-TYP32 sy-vline 
WA_Q0PDU_STR-TYP33 sy-vline 
WA_Q0PDU_STR-TYP34 sy-vline 
WA_Q0PDU_STR-TYP35 sy-vline 
WA_Q0PDU_STR-TYP36 sy-vline 
WA_Q0PDU_STR-TYP37 sy-vline 
WA_Q0PDU_STR-TYP38 sy-vline 
WA_Q0PDU_STR-TYP39 sy-vline 
WA_Q0PDU_STR-TYP3A sy-vline 
WA_Q0PDU_STR-TYP3N sy-vline 
WA_Q0PDU_STR-LFDBZ sy-vline 
WA_Q0PDU_STR-EINBZ sy-vline 
WA_Q0PDU_STR-PUSHB sy-vline 
WA_Q0PDU_STR-ICO41 sy-vline 
WA_Q0PDU_STR-ICO42 sy-vline 
WA_Q0PDU_STR-ICO43 sy-vline 
WA_Q0PDU_STR-ICO44 sy-vline 
WA_Q0PDU_STR-FKTID_TXT sy-vline 
WA_Q0PDU_STR-REGRB_TXT sy-vline 
WA_Q0PDU_STR-YEAAZ sy-vline 
WA_Q0PDU_STR-MONAZ sy-vline 
WA_Q0PDU_STR-ANZHL sy-vline 
WA_Q0PDU_STR-KOMNR_VAL sy-vline 
WA_Q0PDU_STR-RULCV sy-vline 
WA_Q0PDU_STR-GRTP4_TXT sy-vline 
WA_Q0PDU_STR-KZATM_TXT sy-vline 
WA_Q0PDU_STR-VRFKZ_TXT sy-vline 
WA_Q0PDU_STR-RDBEI_TXT sy-vline 
WA_Q0PDU_STR-KZDAR_TXT sy-vline 
WA_Q0PDU_STR-ZWEND_TXT sy-vline 
WA_Q0PDU_STR-ZRMKZ_TXT sy-vline 
WA_Q0PDU_STR-ZRUMR_TXT sy-vline 
WA_Q0PDU_STR-MOZBV_TXT sy-vline 
WA_Q0PDU_STR-MOBBV_TXT sy-vline 
WA_Q0PDU_STR-BBZRM_TXT sy-vline 
WA_Q0PDU_STR-L2UMT_TXT sy-vline 
WA_Q0PDU_STR-WZMTH_TXT sy-vline 
WA_Q0PDU_STR-RDWZT_TXT sy-vline 
WA_Q0PDU_STR-L2WMT_TXT sy-vline 
WA_Q0PDU_STR-VRFKO_VAL sy-vline 
WA_Q0PDU_STR-STTYP_TXT sy-vline 
WA_Q0PDU_STR-VSTTY_TXT sy-vline 
WA_Q0PDU_STR-NOZUS sy-vline 
WA_Q0PDU_STR-PRMSI sy-vline 
WA_Q0PDU_STR-PRYSI sy-vline 
WA_Q0PDU_STR-NOABS sy-vline 
WA_Q0PDU_STR-PRMVI sy-vline 
WA_Q0PDU_STR-PRYVI sy-vline 
WA_Q0PDU_STR-RNDVI_TXT sy-vline 
WA_Q0PDU_STR-RNDSI_TXT sy-vline 
WA_Q0PDU_STR-ANTYP_TXT sy-vline 
WA_Q0PDU_STR-ANTYP_HDR sy-vline 
WA_Q0PDU_STR-LGAIN sy-vline 
WA_Q0PDU_STR-LGAEX sy-vline 
WA_Q0PDU_STR-DTYPE_TXT sy-vline 
WA_Q0PDU_STR-LPAGE_TXT sy-vline 
WA_Q0PDU_STR-IDVTX sy-vline 
WA_Q0PDU_STR-GSALL sy-vline 
WA_Q0PDU_STR-GSMAN sy-vline 
WA_Q0PDU_STR-GSFRA sy-vline      INTO ld_text SEPARATED BY SPACE.

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