ABAP Select data from SAP table QAPPV into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP QAPPV 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 QAPPV. 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 QAPPV 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_QAPPV TYPE STANDARD TABLE OF QAPPV,
      WA_QAPPV TYPE QAPPV,
      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: <QAPPV> TYPE QAPPV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QAPPV
*  INTO TABLE @DATA(IT_QAPPV2).
*--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_QAPPV INDEX 1 INTO DATA(WA_QAPPV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QAPPV>-MANDT = 1.
<QAPPV>-PRUEFLOS = 1.
<QAPPV>-VORGLFNR = 1.
<QAPPV>-PROBENR = 1.
<QAPPV>-TEILLOS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QAPPV-PPSORTKEY, sy-vline,
  WA_QAPPV-MENGE, sy-vline,
  WA_QAPPV-MENGE_A, sy-vline,
  WA_QAPPV-MENGE_N, sy-vline,
  WA_QAPPV-MENGENEINH, sy-vline,
  WA_QAPPV-EQUNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QAPPV 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_QAPPV 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_QAPPV INTO WA_QAPPV.


*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 ALPHA, internal->external for field PRUEFLOS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QAPPV-PRUEFLOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QAPPV-PRUEFLOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MENGENEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_QAPPV-MENGENEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QAPPV-MENGENEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QAPPV-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QAPPV-EQUNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_QAPPV-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QAPPV-TPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PHYNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QAPPV-PHYNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QAPPV-PHYNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field USERC1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QAPPV-USERC1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QAPPV-USERC1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field USERC2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QAPPV-USERC2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QAPPV-USERC2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QAPPV-MBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QAPPV-MBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_QAPPV-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QAPPV-MJAHR.
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_QAPPV_STR, 
MANDT TYPE STRING,
PRUEFLOS TYPE STRING,
VORGLFNR TYPE STRING,
PROBENR TYPE STRING,
TEILLOS TYPE STRING,
PPSORTKEY TYPE STRING,
MENGE TYPE STRING,
MENGE_A TYPE STRING,
MENGE_N TYPE STRING,
MENGENEINH TYPE STRING,
EQUNR TYPE STRING,
EQUNRAKT TYPE STRING,
TPLNR TYPE STRING,
TPLNRAKT TYPE STRING,
PHYNR TYPE STRING,
PHYNRAKT TYPE STRING,
SFI_ID TYPE STRING,
SFI_AKT TYPE STRING,
USERC1 TYPE STRING,
USERC1AKT TYPE STRING,
USERC2 TYPE STRING,
USERC2AKT TYPE STRING,
USERN1 TYPE STRING,
USERN1AKT TYPE STRING,
USERN2 TYPE STRING,
USERN2AKT TYPE STRING,
USERD1 TYPE STRING,
USERD1AKT TYPE STRING,
USERT1 TYPE STRING,
USERT1AKT TYPE STRING,
VKATART TYPE STRING,
VWERKS TYPE STRING,
VAUSWAHLMG TYPE STRING,
VCODEGRP TYPE STRING,
VCODE TYPE STRING,
VBEWERTUNG TYPE STRING,
KZBEWERT TYPE STRING,
KZFERTIG TYPE STRING,
KZPTLBEST TYPE STRING,
RUECK TYPE STRING,
RMZHL TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
ZEILE TYPE STRING,
PRUEFER TYPE STRING,
ENTSTEHDAT TYPE STRING,
ENTSTEHZT TYPE STRING,
ERSTELLER TYPE STRING,
ERSTELDAT TYPE STRING,
ERSTELZEIT TYPE STRING,
AENDERER TYPE STRING,
AENDERDAT TYPE STRING,
AENDERZEIT TYPE STRING,
CHANGEDDATETIME TYPE STRING,
DUMMY_QAPP_INCL_EEW_PS TYPE STRING,
KZBUCHEN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QAPPV_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_QAPPV_STR-MANDT sy-vline 
WA_QAPPV_STR-PRUEFLOS sy-vline 
WA_QAPPV_STR-VORGLFNR sy-vline 
WA_QAPPV_STR-PROBENR sy-vline 
WA_QAPPV_STR-TEILLOS sy-vline 
WA_QAPPV_STR-PPSORTKEY sy-vline 
WA_QAPPV_STR-MENGE sy-vline 
WA_QAPPV_STR-MENGE_A sy-vline 
WA_QAPPV_STR-MENGE_N sy-vline 
WA_QAPPV_STR-MENGENEINH sy-vline 
WA_QAPPV_STR-EQUNR sy-vline 
WA_QAPPV_STR-EQUNRAKT sy-vline 
WA_QAPPV_STR-TPLNR sy-vline 
WA_QAPPV_STR-TPLNRAKT sy-vline 
WA_QAPPV_STR-PHYNR sy-vline 
WA_QAPPV_STR-PHYNRAKT sy-vline 
WA_QAPPV_STR-SFI_ID sy-vline 
WA_QAPPV_STR-SFI_AKT sy-vline 
WA_QAPPV_STR-USERC1 sy-vline 
WA_QAPPV_STR-USERC1AKT sy-vline 
WA_QAPPV_STR-USERC2 sy-vline 
WA_QAPPV_STR-USERC2AKT sy-vline 
WA_QAPPV_STR-USERN1 sy-vline 
WA_QAPPV_STR-USERN1AKT sy-vline 
WA_QAPPV_STR-USERN2 sy-vline 
WA_QAPPV_STR-USERN2AKT sy-vline 
WA_QAPPV_STR-USERD1 sy-vline 
WA_QAPPV_STR-USERD1AKT sy-vline 
WA_QAPPV_STR-USERT1 sy-vline 
WA_QAPPV_STR-USERT1AKT sy-vline 
WA_QAPPV_STR-VKATART sy-vline 
WA_QAPPV_STR-VWERKS sy-vline 
WA_QAPPV_STR-VAUSWAHLMG sy-vline 
WA_QAPPV_STR-VCODEGRP sy-vline 
WA_QAPPV_STR-VCODE sy-vline 
WA_QAPPV_STR-VBEWERTUNG sy-vline 
WA_QAPPV_STR-KZBEWERT sy-vline 
WA_QAPPV_STR-KZFERTIG sy-vline 
WA_QAPPV_STR-KZPTLBEST sy-vline 
WA_QAPPV_STR-RUECK sy-vline 
WA_QAPPV_STR-RMZHL sy-vline 
WA_QAPPV_STR-MBLNR sy-vline 
WA_QAPPV_STR-MJAHR sy-vline 
WA_QAPPV_STR-ZEILE sy-vline 
WA_QAPPV_STR-PRUEFER sy-vline 
WA_QAPPV_STR-ENTSTEHDAT sy-vline 
WA_QAPPV_STR-ENTSTEHZT sy-vline 
WA_QAPPV_STR-ERSTELLER sy-vline 
WA_QAPPV_STR-ERSTELDAT sy-vline 
WA_QAPPV_STR-ERSTELZEIT sy-vline 
WA_QAPPV_STR-AENDERER sy-vline 
WA_QAPPV_STR-AENDERDAT sy-vline 
WA_QAPPV_STR-AENDERZEIT sy-vline 
WA_QAPPV_STR-CHANGEDDATETIME sy-vline 
WA_QAPPV_STR-DUMMY_QAPP_INCL_EEW_PS sy-vline 
WA_QAPPV_STR-KZBUCHEN sy-vline      INTO ld_text SEPARATED BY SPACE.

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