ABAP Select data from SAP table BBP_ITEM_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BBP_ITEM_D
*  INTO TABLE @DATA(IT_BBP_ITEM_D2).
*--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_BBP_ITEM_D INDEX 1 INTO DATA(WA_BBP_ITEM_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BBP_ITEM_D>-EBELP = 1.
<BBP_ITEM_D>-NETPR = 1.
<BBP_ITEM_D>-PEINH = 1.
<BBP_ITEM_D>-LOEKZ = 1.
<BBP_ITEM_D>-AFNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BBP_ITEM_D-VRTKZ, sy-vline,
  WA_BBP_ITEM_D-TWRKZ, sy-vline,
  WA_BBP_ITEM_D-KNTTP, sy-vline,
  WA_BBP_ITEM_D-MEINS, sy-vline,
  WA_BBP_ITEM_D-MATKL, sy-vline,
  WA_BBP_ITEM_D-TXZ01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BBP_ITEM_D 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_BBP_ITEM_D 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_BBP_ITEM_D INTO WA_BBP_ITEM_D.


*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 CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BBP_ITEM_D-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBP_ITEM_D-MEINS.
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_BBP_ITEM_D_STR, 
EBELP TYPE STRING,
NETPR TYPE STRING,
PEINH TYPE STRING,
LOEKZ TYPE STRING,
AFNAM TYPE STRING,
VRTKZ TYPE STRING,
TWRKZ TYPE STRING,
KNTTP TYPE STRING,
MEINS TYPE STRING,
MATKL TYPE STRING,
TXZ01 TYPE STRING,
EINDT TYPE STRING,
UZEIT TYPE STRING,
MENGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BBP_ITEM_D_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_BBP_ITEM_D_STR-EBELP sy-vline 
WA_BBP_ITEM_D_STR-NETPR sy-vline 
WA_BBP_ITEM_D_STR-PEINH sy-vline 
WA_BBP_ITEM_D_STR-LOEKZ sy-vline 
WA_BBP_ITEM_D_STR-AFNAM sy-vline 
WA_BBP_ITEM_D_STR-VRTKZ sy-vline 
WA_BBP_ITEM_D_STR-TWRKZ sy-vline 
WA_BBP_ITEM_D_STR-KNTTP sy-vline 
WA_BBP_ITEM_D_STR-MEINS sy-vline 
WA_BBP_ITEM_D_STR-MATKL sy-vline 
WA_BBP_ITEM_D_STR-TXZ01 sy-vline 
WA_BBP_ITEM_D_STR-EINDT sy-vline 
WA_BBP_ITEM_D_STR-UZEIT sy-vline 
WA_BBP_ITEM_D_STR-MENGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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