ABAP Select data from SAP table BBP_IMS_INV_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BBP_IMS_INV_ITEM 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_IMS_INV_ITEM. 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_IMS_INV_ITEM 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_IMS_INV_ITEM TYPE STANDARD TABLE OF BBP_IMS_INV_ITEM,
      WA_BBP_IMS_INV_ITEM TYPE BBP_IMS_INV_ITEM,
      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_IMS_INV_ITEM> TYPE BBP_IMS_INV_ITEM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BBP_IMS_INV_ITEM
*  INTO TABLE @DATA(IT_BBP_IMS_INV_ITEM2).
*--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_IMS_INV_ITEM INDEX 1 INTO DATA(WA_BBP_IMS_INV_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BBP_IMS_INV_ITEM>-INVOICE_ID = 1.
<BBP_IMS_INV_ITEM>-INVOICE_NO = 1.
<BBP_IMS_INV_ITEM>-INV_ITEM_ID = 1.
<BBP_IMS_INV_ITEM>-INV_ITM_VD_ID = 1.
<BBP_IMS_INV_ITEM>-ORD_REF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BBP_IMS_INV_ITEM-ORD_REFITM, sy-vline,
  WA_BBP_IMS_INV_ITEM-QUANTITY, sy-vline,
  WA_BBP_IMS_INV_ITEM-UOM, sy-vline,
  WA_BBP_IMS_INV_ITEM-NETPRICE, sy-vline,
  WA_BBP_IMS_INV_ITEM-PRICE_CURR, sy-vline,
  WA_BBP_IMS_INV_ITEM-NETAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BBP_IMS_INV_ITEM 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_IMS_INV_ITEM 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_IMS_INV_ITEM INTO WA_BBP_IMS_INV_ITEM.


*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 ALPHA, internal->external for field ORD_REF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBP_IMS_INV_ITEM-ORD_REF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBP_IMS_INV_ITEM-ORD_REF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BBP_IMS_INV_ITEM-UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBP_IMS_INV_ITEM-UOM.
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_IMS_INV_ITEM_STR, 
INVOICE_ID TYPE STRING,
INVOICE_NO TYPE STRING,
INV_ITEM_ID TYPE STRING,
INV_ITM_VD_ID TYPE STRING,
ORD_REF TYPE STRING,
ORD_REFITM TYPE STRING,
QUANTITY TYPE STRING,
UOM TYPE STRING,
NETPRICE TYPE STRING,
PRICE_CURR TYPE STRING,
NETAMOUNT TYPE STRING,
AMOUNT_CURR TYPE STRING,
PRODUCT TYPE STRING,
PROD_DESC TYPE STRING,
TEXT TYPE STRING,
VALUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BBP_IMS_INV_ITEM_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_IMS_INV_ITEM_STR-INVOICE_ID sy-vline 
WA_BBP_IMS_INV_ITEM_STR-INVOICE_NO sy-vline 
WA_BBP_IMS_INV_ITEM_STR-INV_ITEM_ID sy-vline 
WA_BBP_IMS_INV_ITEM_STR-INV_ITM_VD_ID sy-vline 
WA_BBP_IMS_INV_ITEM_STR-ORD_REF sy-vline 
WA_BBP_IMS_INV_ITEM_STR-ORD_REFITM sy-vline 
WA_BBP_IMS_INV_ITEM_STR-QUANTITY sy-vline 
WA_BBP_IMS_INV_ITEM_STR-UOM sy-vline 
WA_BBP_IMS_INV_ITEM_STR-NETPRICE sy-vline 
WA_BBP_IMS_INV_ITEM_STR-PRICE_CURR sy-vline 
WA_BBP_IMS_INV_ITEM_STR-NETAMOUNT sy-vline 
WA_BBP_IMS_INV_ITEM_STR-AMOUNT_CURR sy-vline 
WA_BBP_IMS_INV_ITEM_STR-PRODUCT sy-vline 
WA_BBP_IMS_INV_ITEM_STR-PROD_DESC sy-vline 
WA_BBP_IMS_INV_ITEM_STR-TEXT sy-vline 
WA_BBP_IMS_INV_ITEM_STR-VALUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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