ABAP Select data from SAP table QALT_UD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QALT_UD
*  INTO TABLE @DATA(IT_QALT_UD2).
*--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_QALT_UD INDEX 1 INTO DATA(WA_QALT_UD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QALT_UD>-MANDANT = 1.
<QALT_UD>-PRUEFLOS = 1.
<QALT_UD>-TEILLOS = 1.
<QALT_UD>-OBJNR = 1.
<QALT_UD>-LS_POSNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QALT_UD-MATNR, sy-vline,
  WA_QALT_UD-CHARG, sy-vline,
  WA_QALT_UD-LAGORTCHRG, sy-vline,
  WA_QALT_UD-MENGENEINH, sy-vline,
  WA_QALT_UD-MENGE, sy-vline,
  WA_QALT_UD-MENGEIST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QALT_UD 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_QALT_UD 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_QALT_UD INTO WA_QALT_UD.


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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_QALT_UD-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QALT_UD-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit HUID, internal->external for field HU_DESTINATION
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_QALT_UD-HU_DESTINATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QALT_UD-HU_DESTINATION.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field VERSIONCD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QALT_UD-VERSIONCD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QALT_UD-VERSIONCD.
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_QALT_UD_STR, 
MANDANT TYPE STRING,
PRUEFLOS TYPE STRING,
TEILLOS TYPE STRING,
OBJNR TYPE STRING,
LS_POSNR TYPE STRING,
MATNR TYPE STRING,
CHARG TYPE STRING,
LAGORTCHRG TYPE STRING,
MENGENEINH TYPE STRING,
MENGE TYPE STRING,
MENGEIST TYPE STRING,
KTEXTTLOS TYPE STRING,
LTEXTKZ TYPE STRING,
PRUEFER TYPE STRING,
ENSTEHDAT TYPE STRING,
ENSTEHZEIT TYPE STRING,
ERSTELLER TYPE STRING,
ERSTELDAT TYPE STRING,
ERSTELZEIT TYPE STRING,
AENDERER TYPE STRING,
AENDERDAT TYPE STRING,
AENDERZEIT TYPE STRING,
NO_INSPPOINT TYPE STRING,
PARTIAL_LOT_GUID TYPE STRING,
VFDAT TYPE STRING,
QALT_ALT_QUANTITY TYPE STRING,
QALT_ALT_UNIT TYPE STRING,
STOCK_PARENT_GUID TYPE STRING,
STOCK_ITEM_GUID TYPE STRING,
EXCCODE TYPE STRING,
HU_DESTINATION TYPE STRING,
CWQUAN TYPE STRING,
CWUNIT TYPE STRING,
CWEXACT TYPE STRING,
STATUSTEXT TYPE STRING,
ANZPROBEN TYPE STRING,
ANZPRBIB TYPE STRING,
ANZPRBACC TYPE STRING,
ANZPRBREJ TYPE STRING,
KZART TYPE STRING,
ZAEHLER TYPE STRING,
VKATART TYPE STRING,
VWERKS TYPE STRING,
VAUSWAHLMG TYPE STRING,
VCODEGRP TYPE STRING,
VCODE TYPE STRING,
VERSIONAM TYPE STRING,
VERSIONCD TYPE STRING,
VBEWERTUNG TYPE STRING,
DBEWERTUNG TYPE STRING,
VFOLGEAKTI TYPE STRING,
QKENNZAHL TYPE STRING,
VNAME TYPE STRING,
VDATUM TYPE STRING,
VEZEITERF TYPE STRING,
VAENAME TYPE STRING,
VAEDATUM TYPE STRING,
VEZEITAEN TYPE STRING,
QFOL_UP_EXE TYPE STRING,
UPSL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QALT_UD_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_QALT_UD_STR-MANDANT sy-vline 
WA_QALT_UD_STR-PRUEFLOS sy-vline 
WA_QALT_UD_STR-TEILLOS sy-vline 
WA_QALT_UD_STR-OBJNR sy-vline 
WA_QALT_UD_STR-LS_POSNR sy-vline 
WA_QALT_UD_STR-MATNR sy-vline 
WA_QALT_UD_STR-CHARG sy-vline 
WA_QALT_UD_STR-LAGORTCHRG sy-vline 
WA_QALT_UD_STR-MENGENEINH sy-vline 
WA_QALT_UD_STR-MENGE sy-vline 
WA_QALT_UD_STR-MENGEIST sy-vline 
WA_QALT_UD_STR-KTEXTTLOS sy-vline 
WA_QALT_UD_STR-LTEXTKZ sy-vline 
WA_QALT_UD_STR-PRUEFER sy-vline 
WA_QALT_UD_STR-ENSTEHDAT sy-vline 
WA_QALT_UD_STR-ENSTEHZEIT sy-vline 
WA_QALT_UD_STR-ERSTELLER sy-vline 
WA_QALT_UD_STR-ERSTELDAT sy-vline 
WA_QALT_UD_STR-ERSTELZEIT sy-vline 
WA_QALT_UD_STR-AENDERER sy-vline 
WA_QALT_UD_STR-AENDERDAT sy-vline 
WA_QALT_UD_STR-AENDERZEIT sy-vline 
WA_QALT_UD_STR-NO_INSPPOINT sy-vline 
WA_QALT_UD_STR-PARTIAL_LOT_GUID sy-vline 
WA_QALT_UD_STR-VFDAT sy-vline 
WA_QALT_UD_STR-QALT_ALT_QUANTITY sy-vline 
WA_QALT_UD_STR-QALT_ALT_UNIT sy-vline 
WA_QALT_UD_STR-STOCK_PARENT_GUID sy-vline 
WA_QALT_UD_STR-STOCK_ITEM_GUID sy-vline 
WA_QALT_UD_STR-EXCCODE sy-vline 
WA_QALT_UD_STR-HU_DESTINATION sy-vline 
WA_QALT_UD_STR-CWQUAN sy-vline 
WA_QALT_UD_STR-CWUNIT sy-vline 
WA_QALT_UD_STR-CWEXACT sy-vline 
WA_QALT_UD_STR-STATUSTEXT sy-vline 
WA_QALT_UD_STR-ANZPROBEN sy-vline 
WA_QALT_UD_STR-ANZPRBIB sy-vline 
WA_QALT_UD_STR-ANZPRBACC sy-vline 
WA_QALT_UD_STR-ANZPRBREJ sy-vline 
WA_QALT_UD_STR-KZART sy-vline 
WA_QALT_UD_STR-ZAEHLER sy-vline 
WA_QALT_UD_STR-VKATART sy-vline 
WA_QALT_UD_STR-VWERKS sy-vline 
WA_QALT_UD_STR-VAUSWAHLMG sy-vline 
WA_QALT_UD_STR-VCODEGRP sy-vline 
WA_QALT_UD_STR-VCODE sy-vline 
WA_QALT_UD_STR-VERSIONAM sy-vline 
WA_QALT_UD_STR-VERSIONCD sy-vline 
WA_QALT_UD_STR-VBEWERTUNG sy-vline 
WA_QALT_UD_STR-DBEWERTUNG sy-vline 
WA_QALT_UD_STR-VFOLGEAKTI sy-vline 
WA_QALT_UD_STR-QKENNZAHL sy-vline 
WA_QALT_UD_STR-VNAME sy-vline 
WA_QALT_UD_STR-VDATUM sy-vline 
WA_QALT_UD_STR-VEZEITERF sy-vline 
WA_QALT_UD_STR-VAENAME sy-vline 
WA_QALT_UD_STR-VAEDATUM sy-vline 
WA_QALT_UD_STR-VEZEITAEN sy-vline 
WA_QALT_UD_STR-QFOL_UP_EXE sy-vline 
WA_QALT_UD_STR-UPSL sy-vline      INTO ld_text SEPARATED BY SPACE.

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