ABAP Select data from SAP table WB2B_VC_TC_VCSD_UPD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WB2B_VC_TC_VCSD_UPD 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 WB2B_VC_TC_VCSD_UPD. 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 WB2B_VC_TC_VCSD_UPD 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_WB2B_VC_TC_VCSD_UPD TYPE STANDARD TABLE OF WB2B_VC_TC_VCSD_UPD,
      WA_WB2B_VC_TC_VCSD_UPD TYPE WB2B_VC_TC_VCSD_UPD,
      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: <WB2B_VC_TC_VCSD_UPD> TYPE WB2B_VC_TC_VCSD_UPD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WB2B_VC_TC_VCSD_UPD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WB2B_VC_TC_VCSD_UPD
  INTO TABLE IT_WB2B_VC_TC_VCSD_UPD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WB2B_VC_TC_VCSD_UPD
*  INTO TABLE @DATA(IT_WB2B_VC_TC_VCSD_UPD2).
*--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_WB2B_VC_TC_VCSD_UPD INDEX 1 INTO DATA(WA_WB2B_VC_TC_VCSD_UPD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WB2B_VC_TC_VCSD_UPD ASSIGNING <WB2B_VC_TC_VCSD_UPD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WB2B_VC_TC_VCSD_UPD>-TKONN = 1.
<WB2B_VC_TC_VCSD_UPD>-TPOSN = 1.
<WB2B_VC_TC_VCSD_UPD>-BRGEW = 1.
<WB2B_VC_TC_VCSD_UPD>-AUT_BRGEW = 1.
<WB2B_VC_TC_VCSD_UPD>-BRGEW_MM = 1.

ENDLOOP.

LOOP AT IT_WB2B_VC_TC_VCSD_UPD INTO WA_WB2B_VC_TC_VCSD_UPD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WB2B_VC_TC_VCSD_UPD-AUT_BRGEW_MM, sy-vline,
  WA_WB2B_VC_TC_VCSD_UPD-NTGEW, sy-vline,
  WA_WB2B_VC_TC_VCSD_UPD-AUT_NTGEW, sy-vline,
  WA_WB2B_VC_TC_VCSD_UPD-NTGEW_MM, sy-vline,
  WA_WB2B_VC_TC_VCSD_UPD-AUT_NTGEW_MM, sy-vline,
  WA_WB2B_VC_TC_VCSD_UPD-GEWEI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WB2B_VC_TC_VCSD_UPD 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_WB2B_VC_TC_VCSD_UPD 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_WB2B_VC_TC_VCSD_UPD INTO WA_WB2B_VC_TC_VCSD_UPD.


*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 TKONN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_VC_TC_VCSD_UPD-TKONN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_VC_TC_VCSD_UPD-TKONN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_VC_TC_VCSD_UPD-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_VC_TC_VCSD_UPD-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_VC_TC_VCSD_UPD-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_VC_TC_VCSD_UPD-VOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_VC_TC_VCSD_UPD-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_VC_TC_VCSD_UPD-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_VC_TC_VCSD_UPD-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_VC_TC_VCSD_UPD-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BPRME_MM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2B_VC_TC_VCSD_UPD-BPRME_MM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2B_VC_TC_VCSD_UPD-BPRME_MM.
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_WB2B_VC_TC_VCSD_UPD_STR, 
TKONN TYPE STRING,
TPOSN TYPE STRING,
BRGEW TYPE STRING,
AUT_BRGEW TYPE STRING,
BRGEW_MM TYPE STRING,
AUT_BRGEW_MM TYPE STRING,
NTGEW TYPE STRING,
AUT_NTGEW TYPE STRING,
NTGEW_MM TYPE STRING,
AUT_NTGEW_MM TYPE STRING,
GEWEI TYPE STRING,
AUT_GEWEI TYPE STRING,
VOLUM TYPE STRING,
AUT_VOLUM TYPE STRING,
VOLUM_MM TYPE STRING,
AUT_VOLUM_MM TYPE STRING,
VOLEH TYPE STRING,
AUT_VOLEH TYPE STRING,
KWMENG TYPE STRING,
AUT_KWMENG TYPE STRING,
MENGE TYPE STRING,
AUT_MENGE TYPE STRING,
VRKME TYPE STRING,
AUT_VRKME TYPE STRING,
MEINS TYPE STRING,
AUT_MEINS TYPE STRING,
UMVKZ TYPE STRING,
AUT_UMVKZ TYPE STRING,
UMREZ_MM TYPE STRING,
AUT_UMREZ_MM TYPE STRING,
UMVKN TYPE STRING,
AUT_UMVKN TYPE STRING,
UMREN_MM TYPE STRING,
AUT_UMREN_MM TYPE STRING,
BPRME_MM TYPE STRING,
AUT_BPRME_MM TYPE STRING,
BPUMZ_MM TYPE STRING,
AUT_BPUMZ_MM TYPE STRING,
BPUMN_MM TYPE STRING,
AUT_BPUMN_MM TYPE STRING,
ARKTX TYPE STRING,
AUT_ARKTX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WB2B_VC_TC_VCSD_UPD_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_WB2B_VC_TC_VCSD_UPD_STR-TKONN sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-TPOSN sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-BRGEW sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_BRGEW sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-BRGEW_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_BRGEW_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-NTGEW sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_NTGEW sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-NTGEW_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_NTGEW_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-GEWEI sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_GEWEI sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-VOLUM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_VOLUM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-VOLUM_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_VOLUM_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-VOLEH sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_VOLEH sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-KWMENG sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_KWMENG sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-MENGE sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_MENGE sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-VRKME sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_VRKME sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-MEINS sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_MEINS sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-UMVKZ sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_UMVKZ sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-UMREZ_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_UMREZ_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-UMVKN sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_UMVKN sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-UMREN_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_UMREN_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-BPRME_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_BPRME_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-BPUMZ_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_BPUMZ_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-BPUMN_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_BPUMN_MM sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-ARKTX sy-vline 
WA_WB2B_VC_TC_VCSD_UPD_STR-AUT_ARKTX sy-vline      INTO ld_text SEPARATED BY SPACE.

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