ABAP Select data from SAP table QPU24 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP QPU24 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 QPU24. 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 QPU24 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_QPU24 TYPE STANDARD TABLE OF QPU24,
      WA_QPU24 TYPE QPU24,
      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: <QPU24> TYPE QPU24.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_QPU24.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM QPU24
  INTO TABLE IT_QPU24.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QPU24
*  INTO TABLE @DATA(IT_QPU242).
*--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_QPU24 INDEX 1 INTO DATA(WA_QPU242).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_QPU24 ASSIGNING <QPU24>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QPU24>-PERNR = 1.
<QPU24>-MOLGA = 1.
<QPU24>-WKSIT = 1.
<QPU24>-TXCMP = 1.
<QPU24>-PAYDT = 1.

ENDLOOP.

LOOP AT IT_QPU24 INTO WA_QPU24.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QPU24-FRMON, sy-vline,
  WA_QPU24-FRYER, sy-vline,
  WA_QPU24-TAXAU, sy-vline,
  WA_QPU24-TAXTY, sy-vline,
  WA_QPU24-TAXLV, sy-vline,
  WA_QPU24-STATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QPU24 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_QPU24 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_QPU24 INTO WA_QPU24.


*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 GJAHR, internal->external for field FRYER
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_QPU24-FRYER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QPU24-FRYER.
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_QPU24_STR, 
PERNR TYPE STRING,
MOLGA TYPE STRING,
WKSIT TYPE STRING,
TXCMP TYPE STRING,
PAYDT TYPE STRING,
FRMON TYPE STRING,
FRYER TYPE STRING,
TAXAU TYPE STRING,
TAXTY TYPE STRING,
TAXLV TYPE STRING,
STATE TYPE STRING,
TTYTX TYPE STRING,
TBETR TYPE STRING,
TAXBT TYPE STRING,
TAXDP TYPE STRING,
TXINT TYPE STRING,
PNLTY TYPE STRING,
TAXF1 TYPE STRING,
TAXF2 TYPE STRING,
TAXF3 TYPE STRING,
TAXF4 TYPE STRING,
TAXF5 TYPE STRING,
GENDA TYPE STRING,
GENTM TYPE STRING,
SUSER TYPE STRING,
CDATE TYPE STRING,
ICON TYPE STRING,
SELECTED TYPE STRING,
CHANGED TYPE STRING,
EXISTED TYPE STRING,
COUNTED TYPE STRING,
NTAXFG TYPE STRING,
NPERNR TYPE STRING,
FRMFG TYPE STRING,
REF1 TYPE STRING,
REF2 TYPE STRING,
REF3 TYPE STRING,
REF4 TYPE STRING,
REF5 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QPU24_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_QPU24_STR-PERNR sy-vline 
WA_QPU24_STR-MOLGA sy-vline 
WA_QPU24_STR-WKSIT sy-vline 
WA_QPU24_STR-TXCMP sy-vline 
WA_QPU24_STR-PAYDT sy-vline 
WA_QPU24_STR-FRMON sy-vline 
WA_QPU24_STR-FRYER sy-vline 
WA_QPU24_STR-TAXAU sy-vline 
WA_QPU24_STR-TAXTY sy-vline 
WA_QPU24_STR-TAXLV sy-vline 
WA_QPU24_STR-STATE sy-vline 
WA_QPU24_STR-TTYTX sy-vline 
WA_QPU24_STR-TBETR sy-vline 
WA_QPU24_STR-TAXBT sy-vline 
WA_QPU24_STR-TAXDP sy-vline 
WA_QPU24_STR-TXINT sy-vline 
WA_QPU24_STR-PNLTY sy-vline 
WA_QPU24_STR-TAXF1 sy-vline 
WA_QPU24_STR-TAXF2 sy-vline 
WA_QPU24_STR-TAXF3 sy-vline 
WA_QPU24_STR-TAXF4 sy-vline 
WA_QPU24_STR-TAXF5 sy-vline 
WA_QPU24_STR-GENDA sy-vline 
WA_QPU24_STR-GENTM sy-vline 
WA_QPU24_STR-SUSER sy-vline 
WA_QPU24_STR-CDATE sy-vline 
WA_QPU24_STR-ICON sy-vline 
WA_QPU24_STR-SELECTED sy-vline 
WA_QPU24_STR-CHANGED sy-vline 
WA_QPU24_STR-EXISTED sy-vline 
WA_QPU24_STR-COUNTED sy-vline 
WA_QPU24_STR-NTAXFG sy-vline 
WA_QPU24_STR-NPERNR sy-vline 
WA_QPU24_STR-FRMFG sy-vline 
WA_QPU24_STR-REF1 sy-vline 
WA_QPU24_STR-REF2 sy-vline 
WA_QPU24_STR-REF3 sy-vline 
WA_QPU24_STR-REF4 sy-vline 
WA_QPU24_STR-REF5 sy-vline      INTO ld_text SEPARATED BY SPACE.

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