ABAP Select data from SAP table WB2_WBGT_EVENT_TOTALS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WB2_WBGT_EVENT_TOTALS 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 WB2_WBGT_EVENT_TOTALS. 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 WB2_WBGT_EVENT_TOTALS 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_WB2_WBGT_EVENT_TOTALS TYPE STANDARD TABLE OF WB2_WBGT_EVENT_TOTALS,
      WA_WB2_WBGT_EVENT_TOTALS TYPE WB2_WBGT_EVENT_TOTALS,
      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: <WB2_WBGT_EVENT_TOTALS> TYPE WB2_WBGT_EVENT_TOTALS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WB2_WBGT_EVENT_TOTALS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WB2_WBGT_EVENT_TOTALS
  INTO TABLE IT_WB2_WBGT_EVENT_TOTALS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WB2_WBGT_EVENT_TOTALS
*  INTO TABLE @DATA(IT_WB2_WBGT_EVENT_TOTALS2).
*--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_WB2_WBGT_EVENT_TOTALS INDEX 1 INTO DATA(WA_WB2_WBGT_EVENT_TOTALS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WB2_WBGT_EVENT_TOTALS ASSIGNING <WB2_WBGT_EVENT_TOTALS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WB2_WBGT_EVENT_TOTALS>-TKONN = 1.
<WB2_WBGT_EVENT_TOTALS>-TPOSN = 1.
<WB2_WBGT_EVENT_TOTALS>-PRED_NUMBER_TC = 1.
<WB2_WBGT_EVENT_TOTALS>-PRED_ITEM_NUMBER_TC = 1.
<WB2_WBGT_EVENT_TOTALS>-PRED_DOC_TYPE_TC = 1.

ENDLOOP.

LOOP AT IT_WB2_WBGT_EVENT_TOTALS INTO WA_WB2_WBGT_EVENT_TOTALS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WB2_WBGT_EVENT_TOTALS-BASIS_MEINS, sy-vline,
  WA_WB2_WBGT_EVENT_TOTALS-WAERS, sy-vline,
  WA_WB2_WBGT_EVENT_TOTALS-MATNR, sy-vline,
  WA_WB2_WBGT_EVENT_TOTALS-IDNLF, sy-vline,
  WA_WB2_WBGT_EVENT_TOTALS-KDMAT, sy-vline,
  WA_WB2_WBGT_EVENT_TOTALS-GR_NET_AMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WB2_WBGT_EVENT_TOTALS 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_WB2_WBGT_EVENT_TOTALS 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_WB2_WBGT_EVENT_TOTALS INTO WA_WB2_WBGT_EVENT_TOTALS.


*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 TKONN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_TOTALS-TKONN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_TOTALS-TKONN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASIS_MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_TOTALS-BASIS_MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_TOTALS-BASIS_MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_TOTALS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_TOTALS-MATNR.
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_WB2_WBGT_EVENT_TOTALS_STR, 
TKONN TYPE STRING,
TPOSN TYPE STRING,
PRED_NUMBER_TC TYPE STRING,
PRED_ITEM_NUMBER_TC TYPE STRING,
PRED_DOC_TYPE_TC TYPE STRING,
BASIS_MEINS TYPE STRING,
WAERS TYPE STRING,
MATNR TYPE STRING,
IDNLF TYPE STRING,
KDMAT TYPE STRING,
GR_NET_AMOUNT TYPE STRING,
GI_NET_AMOUNT TYPE STRING,
CIV_NET_AMOUNT TYPE STRING,
VIV_NET_AMOUNT TYPE STRING,
CO_SD_NET_AMOUNT TYPE STRING,
CO_MM_NET_AMOUNT TYPE STRING,
CIV_TAX_AMOUNT TYPE STRING,
VIV_TAX_AMOUNT TYPE STRING,
CO_SD_TAX_AMOUNT TYPE STRING,
CO_MM_TAX_AMOUNT TYPE STRING,
ID_QUANTITY TYPE STRING,
OD_QUANTITY TYPE STRING,
CIV_QUANTITY TYPE STRING,
VIV_QUANTITY TYPE STRING,
GR_QUANTITY TYPE STRING,
GI_QUANTITY TYPE STRING,
CO_SD_QUANTITY TYPE STRING,
CO_MM_QUANTITY TYPE STRING,
OD_COMPLETE TYPE STRING,
ID_COMPLETE TYPE STRING,
GR_COMPLETE TYPE STRING,
CIV_COMPLETE TYPE STRING,
VIV_COMPLETE TYPE STRING,
CO_MM_COMPLETE TYPE STRING,
CO_SD_COMPLETE TYPE STRING,
UPDKZ TYPE STRING,
PO_QUANTITY TYPE STRING,
PO_NET_AMOUNT TYPE STRING,
PO_TAX_AMOUNT TYPE STRING,
SO_QUANTITY TYPE STRING,
SO_NET_AMOUNT TYPE STRING,
SO_TAX_AMOUNT TYPE STRING,
PO_COMPLETE TYPE STRING,
SO_COMPLETE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WB2_WBGT_EVENT_TOTALS_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_WB2_WBGT_EVENT_TOTALS_STR-TKONN sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-TPOSN sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-PRED_NUMBER_TC sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-PRED_ITEM_NUMBER_TC sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-PRED_DOC_TYPE_TC sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-BASIS_MEINS sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-WAERS sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-MATNR sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-IDNLF sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-KDMAT sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-GR_NET_AMOUNT sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-GI_NET_AMOUNT sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-CIV_NET_AMOUNT sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-VIV_NET_AMOUNT sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-CO_SD_NET_AMOUNT sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-CO_MM_NET_AMOUNT sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-CIV_TAX_AMOUNT sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-VIV_TAX_AMOUNT sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-CO_SD_TAX_AMOUNT sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-CO_MM_TAX_AMOUNT sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-ID_QUANTITY sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-OD_QUANTITY sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-CIV_QUANTITY sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-VIV_QUANTITY sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-GR_QUANTITY sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-GI_QUANTITY sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-CO_SD_QUANTITY sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-CO_MM_QUANTITY sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-OD_COMPLETE sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-ID_COMPLETE sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-GR_COMPLETE sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-CIV_COMPLETE sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-VIV_COMPLETE sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-CO_MM_COMPLETE sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-CO_SD_COMPLETE sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-UPDKZ sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-PO_QUANTITY sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-PO_NET_AMOUNT sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-PO_TAX_AMOUNT sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-SO_QUANTITY sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-SO_NET_AMOUNT sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-SO_TAX_AMOUNT sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-PO_COMPLETE sy-vline 
WA_WB2_WBGT_EVENT_TOTALS_STR-SO_COMPLETE sy-vline      INTO ld_text SEPARATED BY SPACE.

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