ABAP Select data from SAP table P01BM_DSME into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP P01BM_DSME 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 P01BM_DSME. 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 P01BM_DSME 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_P01BM_DSME TYPE STANDARD TABLE OF P01BM_DSME,
      WA_P01BM_DSME TYPE P01BM_DSME,
      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: <P01BM_DSME> TYPE P01BM_DSME.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P01BM_DSME.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P01BM_DSME
  INTO TABLE IT_P01BM_DSME.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P01BM_DSME
*  INTO TABLE @DATA(IT_P01BM_DSME2).
*--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_P01BM_DSME INDEX 1 INTO DATA(WA_P01BM_DSME2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P01BM_DSME ASSIGNING <P01BM_DSME>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P01BM_DSME>-MANDT = 1.
<P01BM_DSME>-GUID = 1.
<P01BM_DSME>-VF = 1.
<P01BM_DSME>-BBNRAB = 1.
<P01BM_DSME>-BBNREP = 1.

ENDLOOP.

LOOP AT IT_P01BM_DSME INTO WA_P01BM_DSME.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P01BM_DSME-VERNR, sy-vline,
  WA_P01BM_DSME-ED, sy-vline,
  WA_P01BM_DSME-FEKZ, sy-vline,
  WA_P01BM_DSME-FEAN, sy-vline,
  WA_P01BM_DSME-VSNR, sy-vline,
  WA_P01BM_DSME-VSTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P01BM_DSME 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_P01BM_DSME 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_P01BM_DSME INTO WA_P01BM_DSME.


*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_P01BM_DSME_STR, 
MANDT TYPE STRING,
GUID TYPE STRING,
VF TYPE STRING,
BBNRAB TYPE STRING,
BBNREP TYPE STRING,
VERNR TYPE STRING,
ED TYPE STRING,
FEKZ TYPE STRING,
FEAN TYPE STRING,
VSNR TYPE STRING,
VSTR TYPE STRING,
BBNRVU TYPE STRING,
AZVU TYPE STRING,
BBNRBV TYPE STRING,
MNBV TYPE STRING,
BBNRAS TYPE STRING,
PERSGR TYPE STRING,
GD TYPE STRING,
SASC TYPE STRING,
MMME TYPE STRING,
MMNA TYPE STRING,
MMGB TYPE STRING,
MMAN TYPE STRING,
MMEU TYPE STRING,
MMSO TYPE STRING,
MMKS TYPE STRING,
MMSV TYPE STRING,
MMVR TYPE STRING,
MMRG TYPE STRING,
KENNZUE TYPE STRING,
RESERVE TYPE STRING,
MMKV TYPE STRING,
NEBENVERNR TYPE STRING,
PRODID TYPE STRING,
MODID TYPE STRING,
DSID TYPE STRING,
MMBF TYPE STRING,
DSID_UR TYPE STRING,
VOID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P01BM_DSME_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_P01BM_DSME_STR-MANDT sy-vline 
WA_P01BM_DSME_STR-GUID sy-vline 
WA_P01BM_DSME_STR-VF sy-vline 
WA_P01BM_DSME_STR-BBNRAB sy-vline 
WA_P01BM_DSME_STR-BBNREP sy-vline 
WA_P01BM_DSME_STR-VERNR sy-vline 
WA_P01BM_DSME_STR-ED sy-vline 
WA_P01BM_DSME_STR-FEKZ sy-vline 
WA_P01BM_DSME_STR-FEAN sy-vline 
WA_P01BM_DSME_STR-VSNR sy-vline 
WA_P01BM_DSME_STR-VSTR sy-vline 
WA_P01BM_DSME_STR-BBNRVU sy-vline 
WA_P01BM_DSME_STR-AZVU sy-vline 
WA_P01BM_DSME_STR-BBNRBV sy-vline 
WA_P01BM_DSME_STR-MNBV sy-vline 
WA_P01BM_DSME_STR-BBNRAS sy-vline 
WA_P01BM_DSME_STR-PERSGR sy-vline 
WA_P01BM_DSME_STR-GD sy-vline 
WA_P01BM_DSME_STR-SASC sy-vline 
WA_P01BM_DSME_STR-MMME sy-vline 
WA_P01BM_DSME_STR-MMNA sy-vline 
WA_P01BM_DSME_STR-MMGB sy-vline 
WA_P01BM_DSME_STR-MMAN sy-vline 
WA_P01BM_DSME_STR-MMEU sy-vline 
WA_P01BM_DSME_STR-MMSO sy-vline 
WA_P01BM_DSME_STR-MMKS sy-vline 
WA_P01BM_DSME_STR-MMSV sy-vline 
WA_P01BM_DSME_STR-MMVR sy-vline 
WA_P01BM_DSME_STR-MMRG sy-vline 
WA_P01BM_DSME_STR-KENNZUE sy-vline 
WA_P01BM_DSME_STR-RESERVE sy-vline 
WA_P01BM_DSME_STR-MMKV sy-vline 
WA_P01BM_DSME_STR-NEBENVERNR sy-vline 
WA_P01BM_DSME_STR-PRODID sy-vline 
WA_P01BM_DSME_STR-MODID sy-vline 
WA_P01BM_DSME_STR-DSID sy-vline 
WA_P01BM_DSME_STR-MMBF sy-vline 
WA_P01BM_DSME_STR-DSID_UR sy-vline 
WA_P01BM_DSME_STR-VOID sy-vline      INTO ld_text SEPARATED BY SPACE.

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