ABAP Select data from SAP table TDS_ITEMCOMVC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_ITEMCOMVC
*  INTO TABLE @DATA(IT_TDS_ITEMCOMVC2).
*--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_TDS_ITEMCOMVC INDEX 1 INTO DATA(WA_TDS_ITEMCOMVC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_ITEMCOMVC>-HANDLE = 1.
<TDS_ITEMCOMVC>-SELKZ = 1.
<TDS_ITEMCOMVC>-POSNR = 1.
<TDS_ITEMCOMVC>-UEPOS = 1.
<TDS_ITEMCOMVC>-MABNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_ITEMCOMVC-MATNR, sy-vline,
  WA_TDS_ITEMCOMVC-ARKTX, sy-vline,
  WA_TDS_ITEMCOMVC-PSTYV, sy-vline,
  WA_TDS_ITEMCOMVC-KDMAT, sy-vline,
  WA_TDS_ITEMCOMVC-KWMENG, sy-vline,
  WA_TDS_ITEMCOMVC-VRKME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_ITEMCOMVC 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_TDS_ITEMCOMVC 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_TDS_ITEMCOMVC INTO WA_TDS_ITEMCOMVC.


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

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

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

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

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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_TDS_ITEMCOMVC-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_ITEMCOMVC-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABPSN, internal->external for field T_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_TDS_ITEMCOMVC-T_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_ITEMCOMVC-T_PSP_PNR.
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_TDS_ITEMCOMVC_STR, 
HANDLE TYPE STRING,
SELKZ TYPE STRING,
POSNR TYPE STRING,
UEPOS TYPE STRING,
MABNR TYPE STRING,
MATNR TYPE STRING,
ARKTX TYPE STRING,
PSTYV TYPE STRING,
KDMAT TYPE STRING,
KWMENG TYPE STRING,
VRKME TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
VSTEL TYPE STRING,
ROUTE TYPE STRING,
POSEX TYPE STRING,
FAKSP TYPE STRING,
BSTKD TYPE STRING,
BSTDK TYPE STRING,
ETDAT TYPE STRING,
PRGBZ TYPE STRING,
ZTERM TYPE STRING,
PRSDT TYPE STRING,
KURSK TYPE STRING,
FKDAT TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
ABGRU TYPE STRING,
LPRIO TYPE STRING,
BRGEW TYPE STRING,
NTGEW TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
SPART TYPE STRING,
WAERK TYPE STRING,
NETWR TYPE STRING,
NETPR TYPE STRING,
KSCHL TYPE STRING,
KOEIN TYPE STRING,
KBETR TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
KSTBS TYPE STRING,
MATWA TYPE STRING,
AUFNR TYPE STRING,
PS_PSP_PNR TYPE STRING,
MWSBP TYPE STRING,
ZMENG TYPE STRING,
ZIEME TYPE STRING,
AWAHR TYPE STRING,
FIXMG TYPE STRING,
ZLSCH TYPE STRING,
KZTLF TYPE STRING,
ANTLF TYPE STRING,
GRKOR TYPE STRING,
CHARG TYPE STRING,
DELCO TYPE STRING,
T_PSP_PNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_ITEMCOMVC_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_TDS_ITEMCOMVC_STR-HANDLE sy-vline 
WA_TDS_ITEMCOMVC_STR-SELKZ sy-vline 
WA_TDS_ITEMCOMVC_STR-POSNR sy-vline 
WA_TDS_ITEMCOMVC_STR-UEPOS sy-vline 
WA_TDS_ITEMCOMVC_STR-MABNR sy-vline 
WA_TDS_ITEMCOMVC_STR-MATNR sy-vline 
WA_TDS_ITEMCOMVC_STR-ARKTX sy-vline 
WA_TDS_ITEMCOMVC_STR-PSTYV sy-vline 
WA_TDS_ITEMCOMVC_STR-KDMAT sy-vline 
WA_TDS_ITEMCOMVC_STR-KWMENG sy-vline 
WA_TDS_ITEMCOMVC_STR-VRKME sy-vline 
WA_TDS_ITEMCOMVC_STR-WERKS sy-vline 
WA_TDS_ITEMCOMVC_STR-LGORT sy-vline 
WA_TDS_ITEMCOMVC_STR-VSTEL sy-vline 
WA_TDS_ITEMCOMVC_STR-ROUTE sy-vline 
WA_TDS_ITEMCOMVC_STR-POSEX sy-vline 
WA_TDS_ITEMCOMVC_STR-FAKSP sy-vline 
WA_TDS_ITEMCOMVC_STR-BSTKD sy-vline 
WA_TDS_ITEMCOMVC_STR-BSTDK sy-vline 
WA_TDS_ITEMCOMVC_STR-ETDAT sy-vline 
WA_TDS_ITEMCOMVC_STR-PRGBZ sy-vline 
WA_TDS_ITEMCOMVC_STR-ZTERM sy-vline 
WA_TDS_ITEMCOMVC_STR-PRSDT sy-vline 
WA_TDS_ITEMCOMVC_STR-KURSK sy-vline 
WA_TDS_ITEMCOMVC_STR-FKDAT sy-vline 
WA_TDS_ITEMCOMVC_STR-INCO1 sy-vline 
WA_TDS_ITEMCOMVC_STR-INCO2 sy-vline 
WA_TDS_ITEMCOMVC_STR-ABGRU sy-vline 
WA_TDS_ITEMCOMVC_STR-LPRIO sy-vline 
WA_TDS_ITEMCOMVC_STR-BRGEW sy-vline 
WA_TDS_ITEMCOMVC_STR-NTGEW sy-vline 
WA_TDS_ITEMCOMVC_STR-GEWEI sy-vline 
WA_TDS_ITEMCOMVC_STR-VOLUM sy-vline 
WA_TDS_ITEMCOMVC_STR-VOLEH sy-vline 
WA_TDS_ITEMCOMVC_STR-SPART sy-vline 
WA_TDS_ITEMCOMVC_STR-WAERK sy-vline 
WA_TDS_ITEMCOMVC_STR-NETWR sy-vline 
WA_TDS_ITEMCOMVC_STR-NETPR sy-vline 
WA_TDS_ITEMCOMVC_STR-KSCHL sy-vline 
WA_TDS_ITEMCOMVC_STR-KOEIN sy-vline 
WA_TDS_ITEMCOMVC_STR-KBETR sy-vline 
WA_TDS_ITEMCOMVC_STR-KPEIN sy-vline 
WA_TDS_ITEMCOMVC_STR-KMEIN sy-vline 
WA_TDS_ITEMCOMVC_STR-KSTBS sy-vline 
WA_TDS_ITEMCOMVC_STR-MATWA sy-vline 
WA_TDS_ITEMCOMVC_STR-AUFNR sy-vline 
WA_TDS_ITEMCOMVC_STR-PS_PSP_PNR sy-vline 
WA_TDS_ITEMCOMVC_STR-MWSBP sy-vline 
WA_TDS_ITEMCOMVC_STR-ZMENG sy-vline 
WA_TDS_ITEMCOMVC_STR-ZIEME sy-vline 
WA_TDS_ITEMCOMVC_STR-AWAHR sy-vline 
WA_TDS_ITEMCOMVC_STR-FIXMG sy-vline 
WA_TDS_ITEMCOMVC_STR-ZLSCH sy-vline 
WA_TDS_ITEMCOMVC_STR-KZTLF sy-vline 
WA_TDS_ITEMCOMVC_STR-ANTLF sy-vline 
WA_TDS_ITEMCOMVC_STR-GRKOR sy-vline 
WA_TDS_ITEMCOMVC_STR-CHARG sy-vline 
WA_TDS_ITEMCOMVC_STR-DELCO sy-vline 
WA_TDS_ITEMCOMVC_STR-T_PSP_PNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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