ABAP Select data from SAP table VLC_VEHSO_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VLC_VEHSO_S
*  INTO TABLE @DATA(IT_VLC_VEHSO_S2).
*--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_VLC_VEHSO_S INDEX 1 INTO DATA(WA_VLC_VEHSO_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VLC_VEHSO_S>-MANDT = 1.
<VLC_VEHSO_S>-VMSVEHICLEUUID = 1.
<VLC_VEHSO_S>-VMSVEHICLEACTIONDATETIME = 1.
<VLC_VEHSO_S>-VMSVEHICLEACTIONDOCTYPE = 1.
<VLC_VEHSO_S>-SALESORDER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VLC_VEHSO_S-SALESORDERITEM, sy-vline,
  WA_VLC_VEHSO_S-CREATEDBYUSERNAME, sy-vline,
  WA_VLC_VEHSO_S-PURCHASINGDOCREFERENCEBYCUST, sy-vline,
  WA_VLC_VEHSO_S-SOLDTOPARTY, sy-vline,
  WA_VLC_VEHSO_S-COSTCENTER, sy-vline,
  WA_VLC_VEHSO_S-SALESORGANIZATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VLC_VEHSO_S 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_VLC_VEHSO_S 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_VLC_VEHSO_S INTO WA_VLC_VEHSO_S.


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

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

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

*Conversion exit AUART, internal->external for field SALESORDERTYPE
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_VLC_VEHSO_S-SALESORDERTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VLC_VEHSO_S-SALESORDERTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGICALSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VLC_VEHSO_S-LOGICALSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VLC_VEHSO_S-LOGICALSYSTEM.
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_VLC_VEHSO_S_STR, 
MANDT TYPE STRING,
VMSVEHICLEUUID TYPE STRING,
VMSVEHICLEACTIONDATETIME TYPE STRING,
VMSVEHICLEACTIONDOCTYPE TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
CREATEDBYUSERNAME TYPE STRING,
PURCHASINGDOCREFERENCEBYCUST TYPE STRING,
SOLDTOPARTY TYPE STRING,
COSTCENTER TYPE STRING,
SALESORGANIZATION TYPE STRING,
SALESORDERDATE TYPE STRING,
OVERALLSDPROCESSSTATUS TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
ORGANIZATIONDIVISION TYPE STRING,
NETAMOUNT TYPE STRING,
SALESDOCUMENTCURRENCY TYPE STRING,
SALESORDERTYPE TYPE STRING,
LOGICALSYSTEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VLC_VEHSO_S_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_VLC_VEHSO_S_STR-MANDT sy-vline 
WA_VLC_VEHSO_S_STR-VMSVEHICLEUUID sy-vline 
WA_VLC_VEHSO_S_STR-VMSVEHICLEACTIONDATETIME sy-vline 
WA_VLC_VEHSO_S_STR-VMSVEHICLEACTIONDOCTYPE sy-vline 
WA_VLC_VEHSO_S_STR-SALESORDER sy-vline 
WA_VLC_VEHSO_S_STR-SALESORDERITEM sy-vline 
WA_VLC_VEHSO_S_STR-CREATEDBYUSERNAME sy-vline 
WA_VLC_VEHSO_S_STR-PURCHASINGDOCREFERENCEBYCUST sy-vline 
WA_VLC_VEHSO_S_STR-SOLDTOPARTY sy-vline 
WA_VLC_VEHSO_S_STR-COSTCENTER sy-vline 
WA_VLC_VEHSO_S_STR-SALESORGANIZATION sy-vline 
WA_VLC_VEHSO_S_STR-SALESORDERDATE sy-vline 
WA_VLC_VEHSO_S_STR-OVERALLSDPROCESSSTATUS sy-vline 
WA_VLC_VEHSO_S_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_VLC_VEHSO_S_STR-PLANT sy-vline 
WA_VLC_VEHSO_S_STR-PLANTNAME sy-vline 
WA_VLC_VEHSO_S_STR-ORGANIZATIONDIVISION sy-vline 
WA_VLC_VEHSO_S_STR-NETAMOUNT sy-vline 
WA_VLC_VEHSO_S_STR-SALESDOCUMENTCURRENCY sy-vline 
WA_VLC_VEHSO_S_STR-SALESORDERTYPE sy-vline 
WA_VLC_VEHSO_S_STR-LOGICALSYSTEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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