ABAP Select data from SAP table KOMV_AKTNR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KOMV_AKTNR
*  INTO TABLE @DATA(IT_KOMV_AKTNR2).
*--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_KOMV_AKTNR INDEX 1 INTO DATA(WA_KOMV_AKTNR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KOMV_AKTNR>-MANDT = 1.
<KOMV_AKTNR>-KNUMV = 1.
<KOMV_AKTNR>-KPOSN = 1.
<KOMV_AKTNR>-STUNR = 1.
<KOMV_AKTNR>-ZAEHK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KOMV_AKTNR-KAPPL, sy-vline,
  WA_KOMV_AKTNR-KSCHL, sy-vline,
  WA_KOMV_AKTNR-KDATU, sy-vline,
  WA_KOMV_AKTNR-KRECH, sy-vline,
  WA_KOMV_AKTNR-KAWRT, sy-vline,
  WA_KOMV_AKTNR-KBETR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KOMV_AKTNR 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_KOMV_AKTNR 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_KOMV_AKTNR INTO WA_KOMV_AKTNR.


*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 EXCRT, internal->external for field KKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_KOMV_AKTNR-KKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMV_AKTNR-KKURS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field SAKN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMV_AKTNR-SAKN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMV_AKTNR-SAKN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAKN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMV_AKTNR-SAKN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMV_AKTNR-SAKN2.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit KOTAB, internal->external for field KOTABNR
CALL FUNCTION 'CONVERSION_EXIT_KOTAB_OUTPUT'
  EXPORTING
    input =                      WA_KOMV_AKTNR-KOTABNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMV_AKTNR-KOTABNR.
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_KOMV_AKTNR_STR, 
MANDT TYPE STRING,
KNUMV TYPE STRING,
KPOSN TYPE STRING,
STUNR TYPE STRING,
ZAEHK TYPE STRING,
KAPPL TYPE STRING,
KSCHL TYPE STRING,
KDATU TYPE STRING,
KRECH TYPE STRING,
KAWRT TYPE STRING,
KBETR TYPE STRING,
WAERS TYPE STRING,
KKURS TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
KUMZA TYPE STRING,
KUMNE TYPE STRING,
KNTYP TYPE STRING,
KSTAT TYPE STRING,
KNPRS TYPE STRING,
KRUEK TYPE STRING,
KRELI TYPE STRING,
KHERK TYPE STRING,
KGRPE TYPE STRING,
KOUPD TYPE STRING,
KOLNR TYPE STRING,
KNUMH TYPE STRING,
KOPOS TYPE STRING,
KVSL1 TYPE STRING,
SAKN1 TYPE STRING,
MWSK1 TYPE STRING,
KVSL2 TYPE STRING,
SAKN2 TYPE STRING,
MWSK2 TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
KDIFF TYPE STRING,
KWERT TYPE STRING,
KSTEU TYPE STRING,
KINAK TYPE STRING,
KOAID TYPE STRING,
ZAEKO TYPE STRING,
KMXAW TYPE STRING,
KMXWR TYPE STRING,
KFAKTOR TYPE STRING,
KDUPL TYPE STRING,
KFAKTOR1 TYPE STRING,
KZBZG TYPE STRING,
KSTBS TYPE STRING,
KONMS TYPE STRING,
KONWS TYPE STRING,
KAWRT_K TYPE STRING,
KWAEH TYPE STRING,
KWERT_K TYPE STRING,
KFKIV TYPE STRING,
KVARC TYPE STRING,
KMPRS TYPE STRING,
PRSQU TYPE STRING,
VARCOND TYPE STRING,
STUFE TYPE STRING,
WEGXX TYPE STRING,
KTREL TYPE STRING,
MDFLG TYPE STRING,
TXJLV TYPE STRING,
KBFLAG TYPE STRING,
KOLNR3 TYPE STRING,
CPF_GUID TYPE STRING,
KAQTY TYPE STRING,
VAL_ZERO TYPE STRING,
IS_ACCT_DETN_RELEVANT TYPE STRING,
TAX_COUNTRY TYPE STRING,
PRSCH TYPE STRING,
KOFRM TYPE STRING,
STFKZ TYPE STRING,
KSTBM TYPE STRING,
KSTBM_NEXT TYPE STRING,
IX_KOMT1 TYPE STRING,
IX_GKOMV TYPE STRING,
ZAEHK_IND TYPE STRING,
DRUKZ TYPE STRING,
STUNB TYPE STRING,
STUN2 TYPE STRING,
KZWIW TYPE STRING,
KOFRA TYPE STRING,
KOFRS TYPE STRING,
KMANU TYPE STRING,
TXPRF TYPE STRING,
KNEGA TYPE STRING,
GANZZ TYPE STRING,
KOBLI TYPE STRING,
KAEND_BTR TYPE STRING,
KAEND_WRT TYPE STRING,
KAEND_UFK TYPE STRING,
KAEND_RCH TYPE STRING,
KAEND_LOE TYPE STRING,
KAEND_MEH TYPE STRING,
KZTERM TYPE STRING,
FXMSG TYPE STRING,
UPDKZ TYPE STRING,
SELKZ TYPE STRING,
BOSTA TYPE STRING,
KSPAE TYPE STRING,
LOEVM_KO TYPE STRING,
KNUMA_BO TYPE STRING,
BERGL TYPE STRING,
VHART TYPE STRING,
RDIFA TYPE STRING,
KMENG TYPE STRING,
KBUFF TYPE STRING,
BOSTA_CR TYPE STRING,
IS_CPF_ENABLED TYPE STRING,
IS_QTYCNVFCT_ENABLED TYPE STRING,
QTYCNVFCT_APPLIED TYPE STRING,
SBZRR TYPE STRING,
PURP TYPE STRING,
CCS_USAGE TYPE STRING,
AMOUNT_PER_SALES_UNIT TYPE STRING,
AKTNR TYPE STRING,
KOTABNR TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KOMV_AKTNR_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_KOMV_AKTNR_STR-MANDT sy-vline 
WA_KOMV_AKTNR_STR-KNUMV sy-vline 
WA_KOMV_AKTNR_STR-KPOSN sy-vline 
WA_KOMV_AKTNR_STR-STUNR sy-vline 
WA_KOMV_AKTNR_STR-ZAEHK sy-vline 
WA_KOMV_AKTNR_STR-KAPPL sy-vline 
WA_KOMV_AKTNR_STR-KSCHL sy-vline 
WA_KOMV_AKTNR_STR-KDATU sy-vline 
WA_KOMV_AKTNR_STR-KRECH sy-vline 
WA_KOMV_AKTNR_STR-KAWRT sy-vline 
WA_KOMV_AKTNR_STR-KBETR sy-vline 
WA_KOMV_AKTNR_STR-WAERS sy-vline 
WA_KOMV_AKTNR_STR-KKURS sy-vline 
WA_KOMV_AKTNR_STR-KPEIN sy-vline 
WA_KOMV_AKTNR_STR-KMEIN sy-vline 
WA_KOMV_AKTNR_STR-KUMZA sy-vline 
WA_KOMV_AKTNR_STR-KUMNE sy-vline 
WA_KOMV_AKTNR_STR-KNTYP sy-vline 
WA_KOMV_AKTNR_STR-KSTAT sy-vline 
WA_KOMV_AKTNR_STR-KNPRS sy-vline 
WA_KOMV_AKTNR_STR-KRUEK sy-vline 
WA_KOMV_AKTNR_STR-KRELI sy-vline 
WA_KOMV_AKTNR_STR-KHERK sy-vline 
WA_KOMV_AKTNR_STR-KGRPE sy-vline 
WA_KOMV_AKTNR_STR-KOUPD sy-vline 
WA_KOMV_AKTNR_STR-KOLNR sy-vline 
WA_KOMV_AKTNR_STR-KNUMH sy-vline 
WA_KOMV_AKTNR_STR-KOPOS sy-vline 
WA_KOMV_AKTNR_STR-KVSL1 sy-vline 
WA_KOMV_AKTNR_STR-SAKN1 sy-vline 
WA_KOMV_AKTNR_STR-MWSK1 sy-vline 
WA_KOMV_AKTNR_STR-KVSL2 sy-vline 
WA_KOMV_AKTNR_STR-SAKN2 sy-vline 
WA_KOMV_AKTNR_STR-MWSK2 sy-vline 
WA_KOMV_AKTNR_STR-LIFNR sy-vline 
WA_KOMV_AKTNR_STR-KUNNR sy-vline 
WA_KOMV_AKTNR_STR-KDIFF sy-vline 
WA_KOMV_AKTNR_STR-KWERT sy-vline 
WA_KOMV_AKTNR_STR-KSTEU sy-vline 
WA_KOMV_AKTNR_STR-KINAK sy-vline 
WA_KOMV_AKTNR_STR-KOAID sy-vline 
WA_KOMV_AKTNR_STR-ZAEKO sy-vline 
WA_KOMV_AKTNR_STR-KMXAW sy-vline 
WA_KOMV_AKTNR_STR-KMXWR sy-vline 
WA_KOMV_AKTNR_STR-KFAKTOR sy-vline 
WA_KOMV_AKTNR_STR-KDUPL sy-vline 
WA_KOMV_AKTNR_STR-KFAKTOR1 sy-vline 
WA_KOMV_AKTNR_STR-KZBZG sy-vline 
WA_KOMV_AKTNR_STR-KSTBS sy-vline 
WA_KOMV_AKTNR_STR-KONMS sy-vline 
WA_KOMV_AKTNR_STR-KONWS sy-vline 
WA_KOMV_AKTNR_STR-KAWRT_K sy-vline 
WA_KOMV_AKTNR_STR-KWAEH sy-vline 
WA_KOMV_AKTNR_STR-KWERT_K sy-vline 
WA_KOMV_AKTNR_STR-KFKIV sy-vline 
WA_KOMV_AKTNR_STR-KVARC sy-vline 
WA_KOMV_AKTNR_STR-KMPRS sy-vline 
WA_KOMV_AKTNR_STR-PRSQU sy-vline 
WA_KOMV_AKTNR_STR-VARCOND sy-vline 
WA_KOMV_AKTNR_STR-STUFE sy-vline 
WA_KOMV_AKTNR_STR-WEGXX sy-vline 
WA_KOMV_AKTNR_STR-KTREL sy-vline 
WA_KOMV_AKTNR_STR-MDFLG sy-vline 
WA_KOMV_AKTNR_STR-TXJLV sy-vline 
WA_KOMV_AKTNR_STR-KBFLAG sy-vline 
WA_KOMV_AKTNR_STR-KOLNR3 sy-vline 
WA_KOMV_AKTNR_STR-CPF_GUID sy-vline 
WA_KOMV_AKTNR_STR-KAQTY sy-vline 
WA_KOMV_AKTNR_STR-VAL_ZERO sy-vline 
WA_KOMV_AKTNR_STR-IS_ACCT_DETN_RELEVANT sy-vline 
WA_KOMV_AKTNR_STR-TAX_COUNTRY sy-vline 
WA_KOMV_AKTNR_STR-PRSCH sy-vline 
WA_KOMV_AKTNR_STR-KOFRM sy-vline 
WA_KOMV_AKTNR_STR-STFKZ sy-vline 
WA_KOMV_AKTNR_STR-KSTBM sy-vline 
WA_KOMV_AKTNR_STR-KSTBM_NEXT sy-vline 
WA_KOMV_AKTNR_STR-IX_KOMT1 sy-vline 
WA_KOMV_AKTNR_STR-IX_GKOMV sy-vline 
WA_KOMV_AKTNR_STR-ZAEHK_IND sy-vline 
WA_KOMV_AKTNR_STR-DRUKZ sy-vline 
WA_KOMV_AKTNR_STR-STUNB sy-vline 
WA_KOMV_AKTNR_STR-STUN2 sy-vline 
WA_KOMV_AKTNR_STR-KZWIW sy-vline 
WA_KOMV_AKTNR_STR-KOFRA sy-vline 
WA_KOMV_AKTNR_STR-KOFRS sy-vline 
WA_KOMV_AKTNR_STR-KMANU sy-vline 
WA_KOMV_AKTNR_STR-TXPRF sy-vline 
WA_KOMV_AKTNR_STR-KNEGA sy-vline 
WA_KOMV_AKTNR_STR-GANZZ sy-vline 
WA_KOMV_AKTNR_STR-KOBLI sy-vline 
WA_KOMV_AKTNR_STR-KAEND_BTR sy-vline 
WA_KOMV_AKTNR_STR-KAEND_WRT sy-vline 
WA_KOMV_AKTNR_STR-KAEND_UFK sy-vline 
WA_KOMV_AKTNR_STR-KAEND_RCH sy-vline 
WA_KOMV_AKTNR_STR-KAEND_LOE sy-vline 
WA_KOMV_AKTNR_STR-KAEND_MEH sy-vline 
WA_KOMV_AKTNR_STR-KZTERM sy-vline 
WA_KOMV_AKTNR_STR-FXMSG sy-vline 
WA_KOMV_AKTNR_STR-UPDKZ sy-vline 
WA_KOMV_AKTNR_STR-SELKZ sy-vline 
WA_KOMV_AKTNR_STR-BOSTA sy-vline 
WA_KOMV_AKTNR_STR-KSPAE sy-vline 
WA_KOMV_AKTNR_STR-LOEVM_KO sy-vline 
WA_KOMV_AKTNR_STR-KNUMA_BO sy-vline 
WA_KOMV_AKTNR_STR-BERGL sy-vline 
WA_KOMV_AKTNR_STR-VHART sy-vline 
WA_KOMV_AKTNR_STR-RDIFA sy-vline 
WA_KOMV_AKTNR_STR-KMENG sy-vline 
WA_KOMV_AKTNR_STR-KBUFF sy-vline 
WA_KOMV_AKTNR_STR-BOSTA_CR sy-vline 
WA_KOMV_AKTNR_STR-IS_CPF_ENABLED sy-vline 
WA_KOMV_AKTNR_STR-IS_QTYCNVFCT_ENABLED sy-vline 
WA_KOMV_AKTNR_STR-QTYCNVFCT_APPLIED sy-vline 
WA_KOMV_AKTNR_STR-SBZRR sy-vline 
WA_KOMV_AKTNR_STR-PURP sy-vline 
WA_KOMV_AKTNR_STR-CCS_USAGE sy-vline 
WA_KOMV_AKTNR_STR-AMOUNT_PER_SALES_UNIT sy-vline 
WA_KOMV_AKTNR_STR-AKTNR sy-vline 
WA_KOMV_AKTNR_STR-KOTABNR sy-vline 
WA_KOMV_AKTNR_STR-DATAB sy-vline 
WA_KOMV_AKTNR_STR-DATBI sy-vline      INTO ld_text SEPARATED BY SPACE.

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