ABAP Select data from SAP table GENEBPP_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GENEBPP_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 GENEBPP_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 GENEBPP_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_GENEBPP_ITEM TYPE STANDARD TABLE OF GENEBPP_ITEM,
      WA_GENEBPP_ITEM TYPE GENEBPP_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: <GENEBPP_ITEM> TYPE GENEBPP_ITEM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GENEBPP_ITEM
*  INTO TABLE @DATA(IT_GENEBPP_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_GENEBPP_ITEM INDEX 1 INTO DATA(WA_GENEBPP_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GENEBPP_ITEM>-DOCID = 1.
<GENEBPP_ITEM>-DUE_DATE = 1.
<GENEBPP_ITEM>-CURRENCY = 1.
<GENEBPP_ITEM>-AMOUNT = 1.
<GENEBPP_ITEM>-OPENAMOUNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GENEBPP_ITEM-NON_PAYABLE, sy-vline,
  WA_GENEBPP_ITEM-STATUS, sy-vline,
  WA_GENEBPP_ITEM-PAYMENTGROUP, sy-vline,
  WA_GENEBPP_ITEM-DOCT1, sy-vline,
  WA_GENEBPP_ITEM-DOCTYPE, sy-vline,
  WA_GENEBPP_ITEM-CURRENCY_ORI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GENEBPP_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_GENEBPP_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_GENEBPP_ITEM INTO WA_GENEBPP_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 VKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GENEBPP_ITEM-VKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GENEBPP_ITEM-VKONT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field ABWBL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GENEBPP_ITEM-ABWBL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GENEBPP_ITEM-ABWBL.
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_GENEBPP_ITEM_STR, 
DOCID TYPE STRING,
DUE_DATE TYPE STRING,
CURRENCY TYPE STRING,
AMOUNT TYPE STRING,
OPENAMOUNT TYPE STRING,
NON_PAYABLE TYPE STRING,
STATUS TYPE STRING,
PAYMENTGROUP TYPE STRING,
DOCT1 TYPE STRING,
DOCTYPE TYPE STRING,
CURRENCY_ORI TYPE STRING,
AMOUNT_ORI TYPE STRING,
OPENAMOUNT_ORI TYPE STRING,
POSTING_DATE TYPE STRING,
VKONT TYPE STRING,
FAEDS TYPE STRING,
ORI_FAEDN TYPE STRING,
AUGRD TYPE STRING,
AUGBL TYPE STRING,
BLDAT TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
BUKRS TYPE STRING,
GPART TYPE STRING,
REFID TYPE STRING,
SKTPZ TYPE STRING,
SPZAH TYPE STRING,
PDKEY TYPE STRING,
AUGDT TYPE STRING,
AUGBT TYPE STRING,
AUGWA TYPE STRING,
AUGVD TYPE STRING,
ABWBL TYPE STRING,
ABWTP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GENEBPP_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_GENEBPP_ITEM_STR-DOCID sy-vline 
WA_GENEBPP_ITEM_STR-DUE_DATE sy-vline 
WA_GENEBPP_ITEM_STR-CURRENCY sy-vline 
WA_GENEBPP_ITEM_STR-AMOUNT sy-vline 
WA_GENEBPP_ITEM_STR-OPENAMOUNT sy-vline 
WA_GENEBPP_ITEM_STR-NON_PAYABLE sy-vline 
WA_GENEBPP_ITEM_STR-STATUS sy-vline 
WA_GENEBPP_ITEM_STR-PAYMENTGROUP sy-vline 
WA_GENEBPP_ITEM_STR-DOCT1 sy-vline 
WA_GENEBPP_ITEM_STR-DOCTYPE sy-vline 
WA_GENEBPP_ITEM_STR-CURRENCY_ORI sy-vline 
WA_GENEBPP_ITEM_STR-AMOUNT_ORI sy-vline 
WA_GENEBPP_ITEM_STR-OPENAMOUNT_ORI sy-vline 
WA_GENEBPP_ITEM_STR-POSTING_DATE sy-vline 
WA_GENEBPP_ITEM_STR-VKONT sy-vline 
WA_GENEBPP_ITEM_STR-FAEDS sy-vline 
WA_GENEBPP_ITEM_STR-ORI_FAEDN sy-vline 
WA_GENEBPP_ITEM_STR-AUGRD sy-vline 
WA_GENEBPP_ITEM_STR-AUGBL sy-vline 
WA_GENEBPP_ITEM_STR-BLDAT sy-vline 
WA_GENEBPP_ITEM_STR-HVORG sy-vline 
WA_GENEBPP_ITEM_STR-TVORG sy-vline 
WA_GENEBPP_ITEM_STR-BUKRS sy-vline 
WA_GENEBPP_ITEM_STR-GPART sy-vline 
WA_GENEBPP_ITEM_STR-REFID sy-vline 
WA_GENEBPP_ITEM_STR-SKTPZ sy-vline 
WA_GENEBPP_ITEM_STR-SPZAH sy-vline 
WA_GENEBPP_ITEM_STR-PDKEY sy-vline 
WA_GENEBPP_ITEM_STR-AUGDT sy-vline 
WA_GENEBPP_ITEM_STR-AUGBT sy-vline 
WA_GENEBPP_ITEM_STR-AUGWA sy-vline 
WA_GENEBPP_ITEM_STR-AUGVD sy-vline 
WA_GENEBPP_ITEM_STR-ABWBL sy-vline 
WA_GENEBPP_ITEM_STR-ABWTP sy-vline      INTO ld_text SEPARATED BY SPACE.

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