ABAP Select data from SAP table /MVA/AMUOVEHICLE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /MVA/AMUOVEHICLE 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 /MVA/AMUOVEHICLE. 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 /MVA/AMUOVEHICLE 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_/MVA/AMUOVEHICLE TYPE STANDARD TABLE OF /MVA/AMUOVEHICLE,
      WA_/MVA/AMUOVEHICLE TYPE /MVA/AMUOVEHICLE,
      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: </MVA/AMUOVEHICLE> TYPE /MVA/AMUOVEHICLE.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /MVA/AMUOVEHICLE
  INTO TABLE IT_/MVA/AMUOVEHICLE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MVA/AMUOVEHICLE
*  INTO TABLE @DATA(IT_/MVA/AMUOVEHICLE2).
*--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_/MVA/AMUOVEHICLE INDEX 1 INTO DATA(WA_/MVA/AMUOVEHICLE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/MVA/AMUOVEHICLE ASSIGNING </MVA/AMUOVEHICLE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MVA/AMUOVEHICLE>-DATASET_ID = 1.
</MVA/AMUOVEHICLE>-NATVU = 1.
</MVA/AMUOVEHICLE>-VUNRP = 1.
</MVA/AMUOVEHICLE>-AKZ = 1.
</MVA/AMUOVEHICLE>-MKZFR = 1.

ENDLOOP.

LOOP AT IT_/MVA/AMUOVEHICLE INTO WA_/MVA/AMUOVEHICLE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MVA/AMUOVEHICLE-DARBZ, sy-vline,
  WA_/MVA/AMUOVEHICLE-ZARBZ, sy-vline,
  WA_/MVA/AMUOVEHICLE-AGNTN, sy-vline,
  WA_/MVA/AMUOVEHICLE-INVMV, sy-vline,
  WA_/MVA/AMUOVEHICLE-DPKNV, sy-vline,
  WA_/MVA/AMUOVEHICLE-VTRNV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MVA/AMUOVEHICLE 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_/MVA/AMUOVEHICLE 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_/MVA/AMUOVEHICLE INTO WA_/MVA/AMUOVEHICLE.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/MVA/AMUOVEHICLE_STR, 
DATASET_ID TYPE STRING,
NATVU TYPE STRING,
VUNRP TYPE STRING,
AKZ TYPE STRING,
MKZFR TYPE STRING,
DARBZ TYPE STRING,
ZARBZ TYPE STRING,
AGNTN TYPE STRING,
INVMV TYPE STRING,
DPKNV TYPE STRING,
VTRNV TYPE STRING,
MVORG TYPE STRING,
STBA TYPE STRING,
TXH25 TYPE STRING,
FZKL TYPE STRING,
AAUFB TYPE STRING,
HER TYPE STRING,
TYP TYPE STRING,
VVS TYPE STRING,
PZTYP TYPE STRING,
FIN25 TYPE STRING,
PZFIN TYPE STRING,
KW4 TYPE STRING,
HUB TYPE STRING,
ANR TYPE STRING,
NAMBZ TYPE STRING,
FNAMB TYPE STRING,
DRGRD TYPE STRING,
VNAME TYPE STRING,
PLZ08 TYPE STRING,
NATIO TYPE STRING,
WOHNO TYPE STRING,
STRAS TYPE STRING,
HSNR TYPE STRING,
HNZ15 TYPE STRING,
DGVRG TYPE STRING,
MGVRG TYPE STRING,
D29CA TYPE STRING,
DNOVS TYPE STRING,
MMSNE TYPE STRING,
MVWCH TYPE STRING,
MHAWE TYPE STRING,
DVERN TYPE STRING,
MVAVU TYPE STRING,
VUENR TYPE STRING,
REFKZ TYPE STRING,
TABRK TYPE STRING,
MVAHA TYPE STRING,
AG02 TYPE STRING,
SKZMV TYPE STRING,
SKZMB TYPE STRING,
VSMUK TYPE STRING,
DKZGB TYPE STRING,
RESERVE1 TYPE STRING,
FZKLTXT TYPE STRING,
AAUFBTXT TYPE STRING,
UZALT TYPE STRING,
RUZALT TYPE STRING,
RESERVE2 TYPE STRING,
CANCEL_FL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MVA/AMUOVEHICLE_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_/MVA/AMUOVEHICLE_STR-DATASET_ID sy-vline 
WA_/MVA/AMUOVEHICLE_STR-NATVU sy-vline 
WA_/MVA/AMUOVEHICLE_STR-VUNRP sy-vline 
WA_/MVA/AMUOVEHICLE_STR-AKZ sy-vline 
WA_/MVA/AMUOVEHICLE_STR-MKZFR sy-vline 
WA_/MVA/AMUOVEHICLE_STR-DARBZ sy-vline 
WA_/MVA/AMUOVEHICLE_STR-ZARBZ sy-vline 
WA_/MVA/AMUOVEHICLE_STR-AGNTN sy-vline 
WA_/MVA/AMUOVEHICLE_STR-INVMV sy-vline 
WA_/MVA/AMUOVEHICLE_STR-DPKNV sy-vline 
WA_/MVA/AMUOVEHICLE_STR-VTRNV sy-vline 
WA_/MVA/AMUOVEHICLE_STR-MVORG sy-vline 
WA_/MVA/AMUOVEHICLE_STR-STBA sy-vline 
WA_/MVA/AMUOVEHICLE_STR-TXH25 sy-vline 
WA_/MVA/AMUOVEHICLE_STR-FZKL sy-vline 
WA_/MVA/AMUOVEHICLE_STR-AAUFB sy-vline 
WA_/MVA/AMUOVEHICLE_STR-HER sy-vline 
WA_/MVA/AMUOVEHICLE_STR-TYP sy-vline 
WA_/MVA/AMUOVEHICLE_STR-VVS sy-vline 
WA_/MVA/AMUOVEHICLE_STR-PZTYP sy-vline 
WA_/MVA/AMUOVEHICLE_STR-FIN25 sy-vline 
WA_/MVA/AMUOVEHICLE_STR-PZFIN sy-vline 
WA_/MVA/AMUOVEHICLE_STR-KW4 sy-vline 
WA_/MVA/AMUOVEHICLE_STR-HUB sy-vline 
WA_/MVA/AMUOVEHICLE_STR-ANR sy-vline 
WA_/MVA/AMUOVEHICLE_STR-NAMBZ sy-vline 
WA_/MVA/AMUOVEHICLE_STR-FNAMB sy-vline 
WA_/MVA/AMUOVEHICLE_STR-DRGRD sy-vline 
WA_/MVA/AMUOVEHICLE_STR-VNAME sy-vline 
WA_/MVA/AMUOVEHICLE_STR-PLZ08 sy-vline 
WA_/MVA/AMUOVEHICLE_STR-NATIO sy-vline 
WA_/MVA/AMUOVEHICLE_STR-WOHNO sy-vline 
WA_/MVA/AMUOVEHICLE_STR-STRAS sy-vline 
WA_/MVA/AMUOVEHICLE_STR-HSNR sy-vline 
WA_/MVA/AMUOVEHICLE_STR-HNZ15 sy-vline 
WA_/MVA/AMUOVEHICLE_STR-DGVRG sy-vline 
WA_/MVA/AMUOVEHICLE_STR-MGVRG sy-vline 
WA_/MVA/AMUOVEHICLE_STR-D29CA sy-vline 
WA_/MVA/AMUOVEHICLE_STR-DNOVS sy-vline 
WA_/MVA/AMUOVEHICLE_STR-MMSNE sy-vline 
WA_/MVA/AMUOVEHICLE_STR-MVWCH sy-vline 
WA_/MVA/AMUOVEHICLE_STR-MHAWE sy-vline 
WA_/MVA/AMUOVEHICLE_STR-DVERN sy-vline 
WA_/MVA/AMUOVEHICLE_STR-MVAVU sy-vline 
WA_/MVA/AMUOVEHICLE_STR-VUENR sy-vline 
WA_/MVA/AMUOVEHICLE_STR-REFKZ sy-vline 
WA_/MVA/AMUOVEHICLE_STR-TABRK sy-vline 
WA_/MVA/AMUOVEHICLE_STR-MVAHA sy-vline 
WA_/MVA/AMUOVEHICLE_STR-AG02 sy-vline 
WA_/MVA/AMUOVEHICLE_STR-SKZMV sy-vline 
WA_/MVA/AMUOVEHICLE_STR-SKZMB sy-vline 
WA_/MVA/AMUOVEHICLE_STR-VSMUK sy-vline 
WA_/MVA/AMUOVEHICLE_STR-DKZGB sy-vline 
WA_/MVA/AMUOVEHICLE_STR-RESERVE1 sy-vline 
WA_/MVA/AMUOVEHICLE_STR-FZKLTXT sy-vline 
WA_/MVA/AMUOVEHICLE_STR-AAUFBTXT sy-vline 
WA_/MVA/AMUOVEHICLE_STR-UZALT sy-vline 
WA_/MVA/AMUOVEHICLE_STR-RUZALT sy-vline 
WA_/MVA/AMUOVEHICLE_STR-RESERVE2 sy-vline 
WA_/MVA/AMUOVEHICLE_STR-CANCEL_FL sy-vline      INTO ld_text SEPARATED BY SPACE.

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