ABAP Select data from SAP table WB2_WBGT_EVENT_ITEM 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_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 WB2_WBGT_EVENT_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 WB2_WBGT_EVENT_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_WB2_WBGT_EVENT_ITEM TYPE STANDARD TABLE OF WB2_WBGT_EVENT_ITEM,
      WA_WB2_WBGT_EVENT_ITEM TYPE WB2_WBGT_EVENT_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: <WB2_WBGT_EVENT_ITEM> TYPE WB2_WBGT_EVENT_ITEM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WB2_WBGT_EVENT_ITEM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WB2_WBGT_EVENT_ITEM
  INTO TABLE IT_WB2_WBGT_EVENT_ITEM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WB2_WBGT_EVENT_ITEM
*  INTO TABLE @DATA(IT_WB2_WBGT_EVENT_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_WB2_WBGT_EVENT_ITEM INDEX 1 INTO DATA(WA_WB2_WBGT_EVENT_ITEM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WB2_WBGT_EVENT_ITEM ASSIGNING <WB2_WBGT_EVENT_ITEM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WB2_WBGT_EVENT_ITEM>-TKONN = 1.
<WB2_WBGT_EVENT_ITEM>-TPOSN = 1.
<WB2_WBGT_EVENT_ITEM>-TPOSN_SUB = 1.
<WB2_WBGT_EVENT_ITEM>-DOC_TYPE = 1.
<WB2_WBGT_EVENT_ITEM>-DOCUMENT = 1.

ENDLOOP.

LOOP AT IT_WB2_WBGT_EVENT_ITEM INTO WA_WB2_WBGT_EVENT_ITEM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WB2_WBGT_EVENT_ITEM-ITEM, sy-vline,
  WA_WB2_WBGT_EVENT_ITEM-SUB_ITEM, sy-vline,
  WA_WB2_WBGT_EVENT_ITEM-DOCUMENT_YEAR, sy-vline,
  WA_WB2_WBGT_EVENT_ITEM-PRED_DOC_TYPE, sy-vline,
  WA_WB2_WBGT_EVENT_ITEM-PRED_DOCUMENT, sy-vline,
  WA_WB2_WBGT_EVENT_ITEM-PRED_ITEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WB2_WBGT_EVENT_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_WB2_WBGT_EVENT_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_WB2_WBGT_EVENT_ITEM INTO WA_WB2_WBGT_EVENT_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 TKONN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_ITEM-TKONN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_ITEM-TKONN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_ITEM-DOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_ITEM-DOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field DOCUMENT_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_ITEM-DOCUMENT_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_ITEM-DOCUMENT_YEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRED_DOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_ITEM-PRED_DOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_ITEM-PRED_DOCUMENT.
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_ITEM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_ITEM-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field RATE_VAL
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_ITEM-RATE_VAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_ITEM-RATE_VAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field RATE_EXP
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_ITEM-RATE_EXP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_ITEM-RATE_EXP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_DOC
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_ITEM-UNIT_DOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_ITEM-UNIT_DOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASIS_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_ITEM-BASIS_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_ITEM-BASIS_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field TC_UNIT_DOC
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_ITEM-TC_UNIT_DOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_ITEM-TC_UNIT_DOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VENDOR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_ITEM-VENDOR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_ITEM-VENDOR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_ITEM-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_ITEM-CUSTOMER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CWM_MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_ITEM-CWM_MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_ITEM-CWM_MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GR_BPRME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WB2_WBGT_EVENT_ITEM-GR_BPRME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_WBGT_EVENT_ITEM-GR_BPRME.
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_ITEM_STR, 
TKONN TYPE STRING,
TPOSN TYPE STRING,
TPOSN_SUB TYPE STRING,
DOC_TYPE TYPE STRING,
DOCUMENT TYPE STRING,
ITEM TYPE STRING,
SUB_ITEM TYPE STRING,
DOCUMENT_YEAR TYPE STRING,
PRED_DOC_TYPE TYPE STRING,
PRED_DOCUMENT TYPE STRING,
PRED_ITEM TYPE STRING,
MATNR TYPE STRING,
MATKL TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
BWTAR TYPE STRING,
VALUE TYPE STRING,
VAL_TYPE TYPE STRING,
TAX_VAL TYPE STRING,
RATE_VAL TYPE STRING,
CURR_VAL TYPE STRING,
VALUE_COST TYPE STRING,
AV_DATE TYPE STRING,
RET_ITEM TYPE STRING,
EXP_SUM TYPE STRING,
TAX_EXP_SUM TYPE STRING,
EXP_RP TYPE STRING,
EXP_NRP TYPE STRING,
EXP_RS TYPE STRING,
EXP_NRS TYPE STRING,
RATE_EXP TYPE STRING,
CURR_EXP TYPE STRING,
PORTFOLIO TYPE STRING,
COMMODITY TYPE STRING,
SCENARIO TYPE STRING,
OWN_QUAN TYPE STRING,
UNIT_DOC TYPE STRING,
BASIS_QUAN TYPE STRING,
BASIS_UOM TYPE STRING,
UPDKZ TYPE STRING,
TC_OWN_QUAN TYPE STRING,
TC_UNIT_DOC TYPE STRING,
COMPLETE TYPE STRING,
DEL_FLAG TYPE STRING,
VGART TYPE STRING,
BWART TYPE STRING,
VENDOR TYPE STRING,
CUSTOMER TYPE STRING,
UMZ TYPE STRING,
UMN TYPE STRING,
MOVE_TYPE_CODE TYPE STRING,
SUPPLYING_PLANT TYPE STRING,
RECEIVING_PLANT TYPE STRING,
PRED_DOCUMENT_LONG TYPE STRING,
CWM_MENGE TYPE STRING,
CWM_MEINS TYPE STRING,
CALL_OFF_SIDE TYPE STRING,
GR_BPMNG TYPE STRING,
GR_BPRME TYPE STRING,
CREATION_DATE TYPE STRING,
DOCUMENT_DATE TYPE STRING,
EVENT_INFOS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WB2_WBGT_EVENT_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_WB2_WBGT_EVENT_ITEM_STR-TKONN sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-TPOSN sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-TPOSN_SUB sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-DOC_TYPE sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-DOCUMENT sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-ITEM sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-SUB_ITEM sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-DOCUMENT_YEAR sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-PRED_DOC_TYPE sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-PRED_DOCUMENT sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-PRED_ITEM sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-MATNR sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-MATKL sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-WERKS sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-LGORT sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-CHARG sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-BWTAR sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-VALUE sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-VAL_TYPE sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-TAX_VAL sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-RATE_VAL sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-CURR_VAL sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-VALUE_COST sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-AV_DATE sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-RET_ITEM sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-EXP_SUM sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-TAX_EXP_SUM sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-EXP_RP sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-EXP_NRP sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-EXP_RS sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-EXP_NRS sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-RATE_EXP sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-CURR_EXP sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-PORTFOLIO sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-COMMODITY sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-SCENARIO sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-OWN_QUAN sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-UNIT_DOC sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-BASIS_QUAN sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-BASIS_UOM sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-UPDKZ sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-TC_OWN_QUAN sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-TC_UNIT_DOC sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-COMPLETE sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-DEL_FLAG sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-VGART sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-BWART sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-VENDOR sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-CUSTOMER sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-UMZ sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-UMN sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-MOVE_TYPE_CODE sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-SUPPLYING_PLANT sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-RECEIVING_PLANT sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-PRED_DOCUMENT_LONG sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-CWM_MENGE sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-CWM_MEINS sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-CALL_OFF_SIDE sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-GR_BPMNG sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-GR_BPRME sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-CREATION_DATE sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-DOCUMENT_DATE sy-vline 
WA_WB2_WBGT_EVENT_ITEM_STR-EVENT_INFOS sy-vline      INTO ld_text SEPARATED BY SPACE.

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