ABAP Select data from SAP table E1VDEWNAD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1VDEWNAD 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 E1VDEWNAD. 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 E1VDEWNAD 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_E1VDEWNAD TYPE STANDARD TABLE OF E1VDEWNAD,
      WA_E1VDEWNAD TYPE E1VDEWNAD,
      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: <E1VDEWNAD> TYPE E1VDEWNAD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1VDEWNAD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1VDEWNAD
  INTO TABLE IT_E1VDEWNAD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1VDEWNAD
*  INTO TABLE @DATA(IT_E1VDEWNAD2).
*--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_E1VDEWNAD INDEX 1 INTO DATA(WA_E1VDEWNAD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1VDEWNAD ASSIGNING <E1VDEWNAD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1VDEWNAD>-ACTION = 1.
<E1VDEWNAD>-PARTNER = 1.
<E1VDEWNAD>-CODELIST = 1.
<E1VDEWNAD>-CODELISTAGENCY = 1.
<E1VDEWNAD>-NAMEADDRESS1 = 1.

ENDLOOP.

LOOP AT IT_E1VDEWNAD INTO WA_E1VDEWNAD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1VDEWNAD-NAMEADDRESS2, sy-vline,
  WA_E1VDEWNAD-NAMEADDRESS3, sy-vline,
  WA_E1VDEWNAD-NAMEADDRESS4, sy-vline,
  WA_E1VDEWNAD-NAMEADDRESS5, sy-vline,
  WA_E1VDEWNAD-PARTNERNAME1, sy-vline,
  WA_E1VDEWNAD-PARTNERNAME2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1VDEWNAD 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_E1VDEWNAD 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_E1VDEWNAD INTO WA_E1VDEWNAD.


*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_E1VDEWNAD_STR, 
ACTION TYPE STRING,
PARTNER TYPE STRING,
CODELIST TYPE STRING,
CODELISTAGENCY TYPE STRING,
NAMEADDRESS1 TYPE STRING,
NAMEADDRESS2 TYPE STRING,
NAMEADDRESS3 TYPE STRING,
NAMEADDRESS4 TYPE STRING,
NAMEADDRESS5 TYPE STRING,
PARTNERNAME1 TYPE STRING,
PARTNERNAME2 TYPE STRING,
PARTNERNAME3 TYPE STRING,
PARTNERNAME4 TYPE STRING,
PARTNERNAME5 TYPE STRING,
PARTNERFORMAT TYPE STRING,
STREET1 TYPE STRING,
STREET2 TYPE STRING,
STREET3 TYPE STRING,
STREET4 TYPE STRING,
CITY TYPE STRING,
REGION TYPE STRING,
ZIPCODE TYPE STRING,
COUNTRY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1VDEWNAD_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_E1VDEWNAD_STR-ACTION sy-vline 
WA_E1VDEWNAD_STR-PARTNER sy-vline 
WA_E1VDEWNAD_STR-CODELIST sy-vline 
WA_E1VDEWNAD_STR-CODELISTAGENCY sy-vline 
WA_E1VDEWNAD_STR-NAMEADDRESS1 sy-vline 
WA_E1VDEWNAD_STR-NAMEADDRESS2 sy-vline 
WA_E1VDEWNAD_STR-NAMEADDRESS3 sy-vline 
WA_E1VDEWNAD_STR-NAMEADDRESS4 sy-vline 
WA_E1VDEWNAD_STR-NAMEADDRESS5 sy-vline 
WA_E1VDEWNAD_STR-PARTNERNAME1 sy-vline 
WA_E1VDEWNAD_STR-PARTNERNAME2 sy-vline 
WA_E1VDEWNAD_STR-PARTNERNAME3 sy-vline 
WA_E1VDEWNAD_STR-PARTNERNAME4 sy-vline 
WA_E1VDEWNAD_STR-PARTNERNAME5 sy-vline 
WA_E1VDEWNAD_STR-PARTNERFORMAT sy-vline 
WA_E1VDEWNAD_STR-STREET1 sy-vline 
WA_E1VDEWNAD_STR-STREET2 sy-vline 
WA_E1VDEWNAD_STR-STREET3 sy-vline 
WA_E1VDEWNAD_STR-STREET4 sy-vline 
WA_E1VDEWNAD_STR-CITY sy-vline 
WA_E1VDEWNAD_STR-REGION sy-vline 
WA_E1VDEWNAD_STR-ZIPCODE sy-vline 
WA_E1VDEWNAD_STR-COUNTRY sy-vline      INTO ld_text SEPARATED BY SPACE.

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