ABAP Select data from SAP table QASV into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QASV
*  INTO TABLE @DATA(IT_QASV2).
*--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_QASV INDEX 1 INTO DATA(WA_QASV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QASV>-MANDANT = 1.
<QASV>-PRUEFLOS = 1.
<QASV>-VORGLFNR = 1.
<QASV>-MERKNR = 1.
<QASV>-PROBENR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QASV-ERSTELLER, sy-vline,
  WA_QASV-ERSTELLDAT, sy-vline,
  WA_QASV-AENDERER, sy-vline,
  WA_QASV-AENDERDAT, sy-vline,
  WA_QASV-SATZSTATUS, sy-vline,
  WA_QASV-ANNAHMEZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QASV 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_QASV 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_QASV INTO WA_QASV.


*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_QASV-PRUEFLOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QASV-PRUEFLOS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field QRKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QASV-QRKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QASV-QRKNR.
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_QASV_STR, 
MANDANT TYPE STRING,
PRUEFLOS TYPE STRING,
VORGLFNR TYPE STRING,
MERKNR TYPE STRING,
PROBENR TYPE STRING,
ERSTELLER TYPE STRING,
ERSTELLDAT TYPE STRING,
AENDERER TYPE STRING,
AENDERDAT TYPE STRING,
SATZSTATUS TYPE STRING,
ANNAHMEZ TYPE STRING,
RUECKWEZ TYPE STRING,
KFAKTORNI TYPE STRING,
KFAKTOR TYPE STRING,
ANTVERF TYPE STRING,
BEWREGEL TYPE STRING,
FAKPLANME TYPE STRING,
FAKPROBME TYPE STRING,
PROBMGFAK TYPE STRING,
PROBEMGEH TYPE STRING,
STIPROUMF TYPE STRING,
PRUEFUMF TYPE STRING,
MENGENEINH TYPE STRING,
QRKNR TYPE STRING,
PRSTUFE TYPE STRING,
PRSCHAERFE TYPE STRING,
DUMMY_QASV_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QASV_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_QASV_STR-MANDANT sy-vline 
WA_QASV_STR-PRUEFLOS sy-vline 
WA_QASV_STR-VORGLFNR sy-vline 
WA_QASV_STR-MERKNR sy-vline 
WA_QASV_STR-PROBENR sy-vline 
WA_QASV_STR-ERSTELLER sy-vline 
WA_QASV_STR-ERSTELLDAT sy-vline 
WA_QASV_STR-AENDERER sy-vline 
WA_QASV_STR-AENDERDAT sy-vline 
WA_QASV_STR-SATZSTATUS sy-vline 
WA_QASV_STR-ANNAHMEZ sy-vline 
WA_QASV_STR-RUECKWEZ sy-vline 
WA_QASV_STR-KFAKTORNI sy-vline 
WA_QASV_STR-KFAKTOR sy-vline 
WA_QASV_STR-ANTVERF sy-vline 
WA_QASV_STR-BEWREGEL sy-vline 
WA_QASV_STR-FAKPLANME sy-vline 
WA_QASV_STR-FAKPROBME sy-vline 
WA_QASV_STR-PROBMGFAK sy-vline 
WA_QASV_STR-PROBEMGEH sy-vline 
WA_QASV_STR-STIPROUMF sy-vline 
WA_QASV_STR-PRUEFUMF sy-vline 
WA_QASV_STR-MENGENEINH sy-vline 
WA_QASV_STR-QRKNR sy-vline 
WA_QASV_STR-PRSTUFE sy-vline 
WA_QASV_STR-PRSCHAERFE sy-vline 
WA_QASV_STR-DUMMY_QASV_INCL_EEW_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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