ABAP Select data from SAP table V_EWU_J_1BNFLIN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_EWU_J_1BNFLIN 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_EWU_J_1BNFLIN. 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_EWU_J_1BNFLIN 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_EWU_J_1BNFLIN TYPE STANDARD TABLE OF V_EWU_J_1BNFLIN,
      WA_V_EWU_J_1BNFLIN TYPE V_EWU_J_1BNFLIN,
      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_EWU_J_1BNFLIN> TYPE V_EWU_J_1BNFLIN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_EWU_J_1BNFLIN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_EWU_J_1BNFLIN
  INTO TABLE IT_V_EWU_J_1BNFLIN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_EWU_J_1BNFLIN
*  INTO TABLE @DATA(IT_V_EWU_J_1BNFLIN2).
*--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_EWU_J_1BNFLIN INDEX 1 INTO DATA(WA_V_EWU_J_1BNFLIN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_EWU_J_1BNFLIN ASSIGNING <V_EWU_J_1BNFLIN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_EWU_J_1BNFLIN>-MANDT = 1.
<V_EWU_J_1BNFLIN>-DOCNUM = 1.
<V_EWU_J_1BNFLIN>-ITMNUM = 1.
<V_EWU_J_1BNFLIN>-NETWR = 1.
<V_EWU_J_1BNFLIN>-NETFRE = 1.

ENDLOOP.

LOOP AT IT_V_EWU_J_1BNFLIN INTO WA_V_EWU_J_1BNFLIN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_EWU_J_1BNFLIN-NETINS, sy-vline,
  WA_V_EWU_J_1BNFLIN-NETOTH, sy-vline,
  WA_V_EWU_J_1BNFLIN-NETDIS, sy-vline,
  WA_V_EWU_J_1BNFLIN-NETWRT, sy-vline,
  WA_V_EWU_J_1BNFLIN-NFDIS, sy-vline,
  WA_V_EWU_J_1BNFLIN-NFFRE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_EWU_J_1BNFLIN 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_EWU_J_1BNFLIN 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_EWU_J_1BNFLIN INTO WA_V_EWU_J_1BNFLIN.


*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_V_EWU_J_1BNFLIN_STR, 
MANDT TYPE STRING,
DOCNUM TYPE STRING,
ITMNUM TYPE STRING,
NETWR TYPE STRING,
NETFRE TYPE STRING,
NETINS TYPE STRING,
NETOTH TYPE STRING,
NETDIS TYPE STRING,
NETWRT TYPE STRING,
NFDIS TYPE STRING,
NFFRE TYPE STRING,
NFINS TYPE STRING,
NFNET TYPE STRING,
NFNETT TYPE STRING,
NFOTH TYPE STRING,
ICMSAVR TYPE STRING,
SUBTAVR TYPE STRING,
LPPNET TYPE STRING,
LPPBRT TYPE STRING,
ICMSVALP TYPE STRING,
SUBTVALP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_EWU_J_1BNFLIN_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_EWU_J_1BNFLIN_STR-MANDT sy-vline 
WA_V_EWU_J_1BNFLIN_STR-DOCNUM sy-vline 
WA_V_EWU_J_1BNFLIN_STR-ITMNUM sy-vline 
WA_V_EWU_J_1BNFLIN_STR-NETWR sy-vline 
WA_V_EWU_J_1BNFLIN_STR-NETFRE sy-vline 
WA_V_EWU_J_1BNFLIN_STR-NETINS sy-vline 
WA_V_EWU_J_1BNFLIN_STR-NETOTH sy-vline 
WA_V_EWU_J_1BNFLIN_STR-NETDIS sy-vline 
WA_V_EWU_J_1BNFLIN_STR-NETWRT sy-vline 
WA_V_EWU_J_1BNFLIN_STR-NFDIS sy-vline 
WA_V_EWU_J_1BNFLIN_STR-NFFRE sy-vline 
WA_V_EWU_J_1BNFLIN_STR-NFINS sy-vline 
WA_V_EWU_J_1BNFLIN_STR-NFNET sy-vline 
WA_V_EWU_J_1BNFLIN_STR-NFNETT sy-vline 
WA_V_EWU_J_1BNFLIN_STR-NFOTH sy-vline 
WA_V_EWU_J_1BNFLIN_STR-ICMSAVR sy-vline 
WA_V_EWU_J_1BNFLIN_STR-SUBTAVR sy-vline 
WA_V_EWU_J_1BNFLIN_STR-LPPNET sy-vline 
WA_V_EWU_J_1BNFLIN_STR-LPPBRT sy-vline 
WA_V_EWU_J_1BNFLIN_STR-ICMSVALP sy-vline 
WA_V_EWU_J_1BNFLIN_STR-SUBTVALP sy-vline      INTO ld_text SEPARATED BY SPACE.

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