ABAP Select data from SAP table V56_CAR_LIST_VIEW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V56_CAR_LIST_VIEW 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 V56_CAR_LIST_VIEW. 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 V56_CAR_LIST_VIEW 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_V56_CAR_LIST_VIEW TYPE STANDARD TABLE OF V56_CAR_LIST_VIEW,
      WA_V56_CAR_LIST_VIEW TYPE V56_CAR_LIST_VIEW,
      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: <V56_CAR_LIST_VIEW> TYPE V56_CAR_LIST_VIEW.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V56_CAR_LIST_VIEW.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V56_CAR_LIST_VIEW
  INTO TABLE IT_V56_CAR_LIST_VIEW.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V56_CAR_LIST_VIEW
*  INTO TABLE @DATA(IT_V56_CAR_LIST_VIEW2).
*--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_V56_CAR_LIST_VIEW INDEX 1 INTO DATA(WA_V56_CAR_LIST_VIEW2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V56_CAR_LIST_VIEW ASSIGNING <V56_CAR_LIST_VIEW>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V56_CAR_LIST_VIEW>-TKNUM_KEY = 1.
<V56_CAR_LIST_VIEW>-SEL = 1.
<V56_CAR_LIST_VIEW>-CHG = 1.
<V56_CAR_LIST_VIEW>-DEL = 1.
<V56_CAR_LIST_VIEW>-CHANGE_STATUS = 1.

ENDLOOP.

LOOP AT IT_V56_CAR_LIST_VIEW INTO WA_V56_CAR_LIST_VIEW.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V56_CAR_LIST_VIEW-SHOW_DELIVERY, sy-vline,
  WA_V56_CAR_LIST_VIEW-TKNUM, sy-vline,
  WA_V56_CAR_LIST_VIEW-STTRG, sy-vline,
  WA_V56_CAR_LIST_VIEW-TRD_AMPEL, sy-vline,
  WA_V56_CAR_LIST_VIEW-TNDRST, sy-vline,
  WA_V56_CAR_LIST_VIEW-VBELN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V56_CAR_LIST_VIEW 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_V56_CAR_LIST_VIEW 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_V56_CAR_LIST_VIEW INTO WA_V56_CAR_LIST_VIEW.


*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 TKNUM_KEY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V56_CAR_LIST_VIEW-TKNUM_KEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V56_CAR_LIST_VIEW-TKNUM_KEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TKNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V56_CAR_LIST_VIEW-TKNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V56_CAR_LIST_VIEW-TKNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V56_CAR_LIST_VIEW-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V56_CAR_LIST_VIEW-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V56_CAR_LIST_VIEW-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V56_CAR_LIST_VIEW-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V56_CAR_LIST_VIEW-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V56_CAR_LIST_VIEW-VOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field TRMTYP
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_V56_CAR_LIST_VIEW-TRMTYP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V56_CAR_LIST_VIEW-TRMTYP.
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_V56_CAR_LIST_VIEW_STR, 
TKNUM_KEY TYPE STRING,
SEL TYPE STRING,
CHG TYPE STRING,
DEL TYPE STRING,
CHANGE_STATUS TYPE STRING,
SHOW_DELIVERY TYPE STRING,
TKNUM TYPE STRING,
STTRG TYPE STRING,
TRD_AMPEL TYPE STRING,
TNDRST TYPE STRING,
VBELN TYPE STRING,
LFDAT TYPE STRING,
ORT01 TYPE STRING,
GSGWD TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
TRAGR TYPE STRING,
VSBED TYPE STRING,
TRMTYP TYPE STRING,
SDABW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V56_CAR_LIST_VIEW_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_V56_CAR_LIST_VIEW_STR-TKNUM_KEY sy-vline 
WA_V56_CAR_LIST_VIEW_STR-SEL sy-vline 
WA_V56_CAR_LIST_VIEW_STR-CHG sy-vline 
WA_V56_CAR_LIST_VIEW_STR-DEL sy-vline 
WA_V56_CAR_LIST_VIEW_STR-CHANGE_STATUS sy-vline 
WA_V56_CAR_LIST_VIEW_STR-SHOW_DELIVERY sy-vline 
WA_V56_CAR_LIST_VIEW_STR-TKNUM sy-vline 
WA_V56_CAR_LIST_VIEW_STR-STTRG sy-vline 
WA_V56_CAR_LIST_VIEW_STR-TRD_AMPEL sy-vline 
WA_V56_CAR_LIST_VIEW_STR-TNDRST sy-vline 
WA_V56_CAR_LIST_VIEW_STR-VBELN sy-vline 
WA_V56_CAR_LIST_VIEW_STR-LFDAT sy-vline 
WA_V56_CAR_LIST_VIEW_STR-ORT01 sy-vline 
WA_V56_CAR_LIST_VIEW_STR-GSGWD sy-vline 
WA_V56_CAR_LIST_VIEW_STR-GEWEI sy-vline 
WA_V56_CAR_LIST_VIEW_STR-VOLUM sy-vline 
WA_V56_CAR_LIST_VIEW_STR-VOLEH sy-vline 
WA_V56_CAR_LIST_VIEW_STR-TRAGR sy-vline 
WA_V56_CAR_LIST_VIEW_STR-VSBED sy-vline 
WA_V56_CAR_LIST_VIEW_STR-TRMTYP sy-vline 
WA_V56_CAR_LIST_VIEW_STR-SDABW sy-vline      INTO ld_text SEPARATED BY SPACE.

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