ABAP Select data from SAP table V_TOI0_REL_NOM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TOI0_REL_NOM 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 V_TOI0_REL_NOM. 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 V_TOI0_REL_NOM 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_V_TOI0_REL_NOM TYPE STANDARD TABLE OF V_TOI0_REL_NOM,
      WA_V_TOI0_REL_NOM TYPE V_TOI0_REL_NOM,
      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: <V_TOI0_REL_NOM> TYPE V_TOI0_REL_NOM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_TOI0_REL_NOM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_TOI0_REL_NOM
  INTO TABLE IT_V_TOI0_REL_NOM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TOI0_REL_NOM
*  INTO TABLE @DATA(IT_V_TOI0_REL_NOM2).
*--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_V_TOI0_REL_NOM INDEX 1 INTO DATA(WA_V_TOI0_REL_NOM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_TOI0_REL_NOM ASSIGNING <V_TOI0_REL_NOM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TOI0_REL_NOM>-CLIENT = 1.
<V_TOI0_REL_NOM>-APPLIC = 1.
<V_TOI0_REL_NOM>-NOM_TYPE = 1.
<V_TOI0_REL_NOM>-COUNTER = 1.
<V_TOI0_REL_NOM>-NOMTYP = 1.

ENDLOOP.

LOOP AT IT_V_TOI0_REL_NOM INTO WA_V_TOI0_REL_NOM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TOI0_REL_NOM-MVSCENARIO, sy-vline,
  WA_V_TOI0_REL_NOM-TSYST, sy-vline,
  WA_V_TOI0_REL_NOM-NMCARRIER, sy-vline,
  WA_V_TOI0_REL_NOM-NMSHIPPER, sy-vline,
  WA_V_TOI0_REL_NOM-NMWERK, sy-vline,
  WA_V_TOI0_REL_NOM-NMLGORT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TOI0_REL_NOM 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_V_TOI0_REL_NOM 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_V_TOI0_REL_NOM INTO WA_V_TOI0_REL_NOM.


*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 APPLIC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TOI0_REL_NOM-APPLIC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TOI0_REL_NOM-APPLIC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NMCARRIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TOI0_REL_NOM-NMCARRIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TOI0_REL_NOM-NMCARRIER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NMSHIPPER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_TOI0_REL_NOM-NMSHIPPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TOI0_REL_NOM-NMSHIPPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR_I
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_V_TOI0_REL_NOM-MATNR_I
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TOI0_REL_NOM-MATNR_I.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field S_MATNR_I
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_V_TOI0_REL_NOM-S_MATNR_I
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TOI0_REL_NOM-S_MATNR_I.
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_V_TOI0_REL_NOM_STR, 
CLIENT TYPE STRING,
APPLIC TYPE STRING,
NOM_TYPE TYPE STRING,
COUNTER TYPE STRING,
NOMTYP TYPE STRING,
MVSCENARIO TYPE STRING,
TSYST TYPE STRING,
NMCARRIER TYPE STRING,
NMSHIPPER TYPE STRING,
NMWERK TYPE STRING,
NMLGORT TYPE STRING,
SHTYPE TYPE STRING,
MATNR_I TYPE STRING,
LOCID TYPE STRING,
LOCPT TYPE STRING,
LOCSL TYPE STRING,
VALUATIONTYPE_O TYPE STRING,
VALUATIONTYPE_D TYPE STRING,
S_MATNR_I TYPE STRING,
CHARGO TYPE STRING,
CHARGD TYPE STRING,
VKTRA TYPE STRING,
RELEVANCE_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TOI0_REL_NOM_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_V_TOI0_REL_NOM_STR-CLIENT sy-vline 
WA_V_TOI0_REL_NOM_STR-APPLIC sy-vline 
WA_V_TOI0_REL_NOM_STR-NOM_TYPE sy-vline 
WA_V_TOI0_REL_NOM_STR-COUNTER sy-vline 
WA_V_TOI0_REL_NOM_STR-NOMTYP sy-vline 
WA_V_TOI0_REL_NOM_STR-MVSCENARIO sy-vline 
WA_V_TOI0_REL_NOM_STR-TSYST sy-vline 
WA_V_TOI0_REL_NOM_STR-NMCARRIER sy-vline 
WA_V_TOI0_REL_NOM_STR-NMSHIPPER sy-vline 
WA_V_TOI0_REL_NOM_STR-NMWERK sy-vline 
WA_V_TOI0_REL_NOM_STR-NMLGORT sy-vline 
WA_V_TOI0_REL_NOM_STR-SHTYPE sy-vline 
WA_V_TOI0_REL_NOM_STR-MATNR_I sy-vline 
WA_V_TOI0_REL_NOM_STR-LOCID sy-vline 
WA_V_TOI0_REL_NOM_STR-LOCPT sy-vline 
WA_V_TOI0_REL_NOM_STR-LOCSL sy-vline 
WA_V_TOI0_REL_NOM_STR-VALUATIONTYPE_O sy-vline 
WA_V_TOI0_REL_NOM_STR-VALUATIONTYPE_D sy-vline 
WA_V_TOI0_REL_NOM_STR-S_MATNR_I sy-vline 
WA_V_TOI0_REL_NOM_STR-CHARGO sy-vline 
WA_V_TOI0_REL_NOM_STR-CHARGD sy-vline 
WA_V_TOI0_REL_NOM_STR-VKTRA sy-vline 
WA_V_TOI0_REL_NOM_STR-RELEVANCE_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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