ABAP Select data from SAP table CRMS4S_BUPA_IL_KNVP_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMS4S_BUPA_IL_KNVP_DATA 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 CRMS4S_BUPA_IL_KNVP_DATA. 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 CRMS4S_BUPA_IL_KNVP_DATA 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_CRMS4S_BUPA_IL_KNVP_DATA TYPE STANDARD TABLE OF CRMS4S_BUPA_IL_KNVP_DATA,
      WA_CRMS4S_BUPA_IL_KNVP_DATA TYPE CRMS4S_BUPA_IL_KNVP_DATA,
      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: <CRMS4S_BUPA_IL_KNVP_DATA> TYPE CRMS4S_BUPA_IL_KNVP_DATA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRMS4S_BUPA_IL_KNVP_DATA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRMS4S_BUPA_IL_KNVP_DATA
  INTO TABLE IT_CRMS4S_BUPA_IL_KNVP_DATA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS4S_BUPA_IL_KNVP_DATA
*  INTO TABLE @DATA(IT_CRMS4S_BUPA_IL_KNVP_DATA2).
*--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_CRMS4S_BUPA_IL_KNVP_DATA INDEX 1 INTO DATA(WA_CRMS4S_BUPA_IL_KNVP_DATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRMS4S_BUPA_IL_KNVP_DATA ASSIGNING <CRMS4S_BUPA_IL_KNVP_DATA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS4S_BUPA_IL_KNVP_DATA>-BUSINESSPARTNER1 = 1.
<CRMS4S_BUPA_IL_KNVP_DATA>-SALES_ORGANIZATION = 1.
<CRMS4S_BUPA_IL_KNVP_DATA>-DISTRIBUTION_CHANNEL = 1.
<CRMS4S_BUPA_IL_KNVP_DATA>-DIVISION = 1.
<CRMS4S_BUPA_IL_KNVP_DATA>-PARVW = 1.

ENDLOOP.

LOOP AT IT_CRMS4S_BUPA_IL_KNVP_DATA INTO WA_CRMS4S_BUPA_IL_KNVP_DATA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS4S_BUPA_IL_KNVP_DATA-BUSINESSPARTNER2, sy-vline,
  WA_CRMS4S_BUPA_IL_KNVP_DATA-KUNNR, sy-vline,
  WA_CRMS4S_BUPA_IL_KNVP_DATA-PARZA, sy-vline,
  WA_CRMS4S_BUPA_IL_KNVP_DATA-KUNN2, sy-vline,
  WA_CRMS4S_BUPA_IL_KNVP_DATA-LIFNR, sy-vline,
  WA_CRMS4S_BUPA_IL_KNVP_DATA-PERNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS4S_BUPA_IL_KNVP_DATA 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_CRMS4S_BUPA_IL_KNVP_DATA 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_CRMS4S_BUPA_IL_KNVP_DATA INTO WA_CRMS4S_BUPA_IL_KNVP_DATA.


*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 BUSINESSPARTNER1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_BUPA_IL_KNVP_DATA-BUSINESSPARTNER1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_BUPA_IL_KNVP_DATA-BUSINESSPARTNER1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field PARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_BUPA_IL_KNVP_DATA-PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_BUPA_IL_KNVP_DATA-PARVW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_BUPA_IL_KNVP_DATA-BUSINESSPARTNER2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_BUPA_IL_KNVP_DATA-BUSINESSPARTNER2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_BUPA_IL_KNVP_DATA-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_BUPA_IL_KNVP_DATA-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_BUPA_IL_KNVP_DATA-KUNN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_BUPA_IL_KNVP_DATA-KUNN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_BUPA_IL_KNVP_DATA-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_BUPA_IL_KNVP_DATA-LIFNR.
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_CRMS4S_BUPA_IL_KNVP_DATA_STR, 
BUSINESSPARTNER1 TYPE STRING,
SALES_ORGANIZATION TYPE STRING,
DISTRIBUTION_CHANNEL TYPE STRING,
DIVISION TYPE STRING,
PARVW TYPE STRING,
BUSINESSPARTNER2 TYPE STRING,
KUNNR TYPE STRING,
PARZA TYPE STRING,
KUNN2 TYPE STRING,
LIFNR TYPE STRING,
PERNR TYPE STRING,
PARNR TYPE STRING,
KNREF TYPE STRING,
STANDARD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMS4S_BUPA_IL_KNVP_DATA_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_CRMS4S_BUPA_IL_KNVP_DATA_STR-BUSINESSPARTNER1 sy-vline 
WA_CRMS4S_BUPA_IL_KNVP_DATA_STR-SALES_ORGANIZATION sy-vline 
WA_CRMS4S_BUPA_IL_KNVP_DATA_STR-DISTRIBUTION_CHANNEL sy-vline 
WA_CRMS4S_BUPA_IL_KNVP_DATA_STR-DIVISION sy-vline 
WA_CRMS4S_BUPA_IL_KNVP_DATA_STR-PARVW sy-vline 
WA_CRMS4S_BUPA_IL_KNVP_DATA_STR-BUSINESSPARTNER2 sy-vline 
WA_CRMS4S_BUPA_IL_KNVP_DATA_STR-KUNNR sy-vline 
WA_CRMS4S_BUPA_IL_KNVP_DATA_STR-PARZA sy-vline 
WA_CRMS4S_BUPA_IL_KNVP_DATA_STR-KUNN2 sy-vline 
WA_CRMS4S_BUPA_IL_KNVP_DATA_STR-LIFNR sy-vline 
WA_CRMS4S_BUPA_IL_KNVP_DATA_STR-PERNR sy-vline 
WA_CRMS4S_BUPA_IL_KNVP_DATA_STR-PARNR sy-vline 
WA_CRMS4S_BUPA_IL_KNVP_DATA_STR-KNREF sy-vline 
WA_CRMS4S_BUPA_IL_KNVP_DATA_STR-STANDARD sy-vline      INTO ld_text SEPARATED BY SPACE.

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