ABAP Select data from SAP table /BEV2/EDMAC_V into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /BEV2/EDMAC_V 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 /BEV2/EDMAC_V. 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 /BEV2/EDMAC_V 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_/BEV2/EDMAC_V TYPE STANDARD TABLE OF /BEV2/EDMAC_V,
      WA_/BEV2/EDMAC_V TYPE /BEV2/EDMAC_V,
      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: </BEV2/EDMAC_V> TYPE /BEV2/EDMAC_V.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/BEV2/EDMAC_V.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /BEV2/EDMAC_V
  INTO TABLE IT_/BEV2/EDMAC_V.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BEV2/EDMAC_V
*  INTO TABLE @DATA(IT_/BEV2/EDMAC_V2).
*--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_/BEV2/EDMAC_V INDEX 1 INTO DATA(WA_/BEV2/EDMAC_V2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/BEV2/EDMAC_V ASSIGNING </BEV2/EDMAC_V>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BEV2/EDMAC_V>-MANDT = 1.
</BEV2/EDMAC_V>-MATNR = 1.
</BEV2/EDMAC_V>-WERKS = 1.
</BEV2/EDMAC_V>-YHVBART = 1.
</BEV2/EDMAC_V>-MAKTX = 1.

ENDLOOP.

LOOP AT IT_/BEV2/EDMAC_V INTO WA_/BEV2/EDMAC_V.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BEV2/EDMAC_V-YHALKOABW, sy-vline,
  WA_/BEV2/EDMAC_V-DATAB, sy-vline,
  WA_/BEV2/EDMAC_V-DATBI, sy-vline,
  WA_/BEV2/EDMAC_V-YHSWHER, sy-vline,
  WA_/BEV2/EDMAC_V-YHSWHERN, sy-vline,
  WA_/BEV2/EDMAC_V-YHSWHERD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BEV2/EDMAC_V 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_/BEV2/EDMAC_V 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_/BEV2/EDMAC_V INTO WA_/BEV2/EDMAC_V.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/EDMAC_V-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/EDMAC_V-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field YHKUND1EH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/EDMAC_V-YHKUND1EH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/EDMAC_V-YHKUND1EH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field YHKUND2EH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/EDMAC_V-YHKUND2EH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/EDMAC_V-YHKUND2EH.
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_/BEV2/EDMAC_V_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
YHVBART TYPE STRING,
MAKTX TYPE STRING,
YHALKOABW TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
YHSWHER TYPE STRING,
YHSWHERN TYPE STRING,
YHSWHERD TYPE STRING,
YHSWABF TYPE STRING,
YHSWABFN TYPE STRING,
YHSWABFD TYPE STRING,
YHSWRET TYPE STRING,
YHSWRETN TYPE STRING,
YHSWRETD TYPE STRING,
YHKUND1N TYPE STRING,
YHKUND1EH TYPE STRING,
YHKUND2N TYPE STRING,
YHKUND2EH TYPE STRING,
YHKUND1A TYPE STRING,
YHKUND2A TYPE STRING,
ITEPC TYPE STRING,
WINZON TYPE STRING,
WICAT TYPE STRING,
WINCOO TYPE STRING,
WIN_OTHER TYPE STRING,
WINOP TYPE STRING,
YHALKO_ADD_C TYPE STRING,
DENSITY_C TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BEV2/EDMAC_V_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_/BEV2/EDMAC_V_STR-MANDT sy-vline 
WA_/BEV2/EDMAC_V_STR-MATNR sy-vline 
WA_/BEV2/EDMAC_V_STR-WERKS sy-vline 
WA_/BEV2/EDMAC_V_STR-YHVBART sy-vline 
WA_/BEV2/EDMAC_V_STR-MAKTX sy-vline 
WA_/BEV2/EDMAC_V_STR-YHALKOABW sy-vline 
WA_/BEV2/EDMAC_V_STR-DATAB sy-vline 
WA_/BEV2/EDMAC_V_STR-DATBI sy-vline 
WA_/BEV2/EDMAC_V_STR-YHSWHER sy-vline 
WA_/BEV2/EDMAC_V_STR-YHSWHERN sy-vline 
WA_/BEV2/EDMAC_V_STR-YHSWHERD sy-vline 
WA_/BEV2/EDMAC_V_STR-YHSWABF sy-vline 
WA_/BEV2/EDMAC_V_STR-YHSWABFN sy-vline 
WA_/BEV2/EDMAC_V_STR-YHSWABFD sy-vline 
WA_/BEV2/EDMAC_V_STR-YHSWRET sy-vline 
WA_/BEV2/EDMAC_V_STR-YHSWRETN sy-vline 
WA_/BEV2/EDMAC_V_STR-YHSWRETD sy-vline 
WA_/BEV2/EDMAC_V_STR-YHKUND1N sy-vline 
WA_/BEV2/EDMAC_V_STR-YHKUND1EH sy-vline 
WA_/BEV2/EDMAC_V_STR-YHKUND2N sy-vline 
WA_/BEV2/EDMAC_V_STR-YHKUND2EH sy-vline 
WA_/BEV2/EDMAC_V_STR-YHKUND1A sy-vline 
WA_/BEV2/EDMAC_V_STR-YHKUND2A sy-vline 
WA_/BEV2/EDMAC_V_STR-ITEPC sy-vline 
WA_/BEV2/EDMAC_V_STR-WINZON sy-vline 
WA_/BEV2/EDMAC_V_STR-WICAT sy-vline 
WA_/BEV2/EDMAC_V_STR-WINCOO sy-vline 
WA_/BEV2/EDMAC_V_STR-WIN_OTHER sy-vline 
WA_/BEV2/EDMAC_V_STR-WINOP sy-vline 
WA_/BEV2/EDMAC_V_STR-YHALKO_ADD_C sy-vline 
WA_/BEV2/EDMAC_V_STR-DENSITY_C sy-vline      INTO ld_text SEPARATED BY SPACE.

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