ABAP Select data from SAP table ENOTE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENOTE
*  INTO TABLE @DATA(IT_ENOTE2).
*--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_ENOTE INDEX 1 INTO DATA(WA_ENOTE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENOTE>-MANDT = 1.
<ENOTE>-SPRAS = 1.
<ENOTE>-OBJKEY = 1.
<ENOTE>-OBJTYPE = 1.
<ENOTE>-LFDNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENOTE-NOTE, sy-vline,
  WA_ENOTE-ADDTXT1, sy-vline,
  WA_ENOTE-ADDTXT2, sy-vline,
  WA_ENOTE-ADDTXT3, sy-vline,
  WA_ENOTE-ADDTXT4, sy-vline,
  WA_ENOTE-ADDTXT5, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENOTE 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_ENOTE 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_ENOTE INTO WA_ENOTE.


*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 PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENOTE-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENOTE-PARTNER.
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_ENOTE_STR, 
MANDT TYPE STRING,
SPRAS TYPE STRING,
OBJKEY TYPE STRING,
OBJTYPE TYPE STRING,
LFDNR TYPE STRING,
NOTE TYPE STRING,
ADDTXT1 TYPE STRING,
ADDTXT2 TYPE STRING,
ADDTXT3 TYPE STRING,
ADDTXT4 TYPE STRING,
ADDTXT5 TYPE STRING,
PRIO TYPE STRING,
ADDR TYPE STRING,
FORMGROUP TYPE STRING,
PARTNER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENOTE_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_ENOTE_STR-MANDT sy-vline 
WA_ENOTE_STR-SPRAS sy-vline 
WA_ENOTE_STR-OBJKEY sy-vline 
WA_ENOTE_STR-OBJTYPE sy-vline 
WA_ENOTE_STR-LFDNR sy-vline 
WA_ENOTE_STR-NOTE sy-vline 
WA_ENOTE_STR-ADDTXT1 sy-vline 
WA_ENOTE_STR-ADDTXT2 sy-vline 
WA_ENOTE_STR-ADDTXT3 sy-vline 
WA_ENOTE_STR-ADDTXT4 sy-vline 
WA_ENOTE_STR-ADDTXT5 sy-vline 
WA_ENOTE_STR-PRIO sy-vline 
WA_ENOTE_STR-ADDR sy-vline 
WA_ENOTE_STR-FORMGROUP sy-vline 
WA_ENOTE_STR-PARTNER sy-vline      INTO ld_text SEPARATED BY SPACE.

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