ABAP Select data from SAP table BAPI_WAGECOMPEXT_COSTASSIGN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_WAGECOMPEXT_COSTASSIGN
*  INTO TABLE @DATA(IT_BAPI_WAGECOMPEXT_COSTASSIGN2).
*--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_BAPI_WAGECOMPEXT_COSTASSIGN INDEX 1 INTO DATA(WA_BAPI_WAGECOMPEXT_COSTASSIGN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_WAGECOMPEXT_COSTASSIGN>-COMPANYCODE = 1.
<BAPI_WAGECOMPEXT_COSTASSIGN>-BUSINESSAREA = 1.
<BAPI_WAGECOMPEXT_COSTASSIGN>-COSTCENTER = 1.
<BAPI_WAGECOMPEXT_COSTASSIGN>-ORDERID = 1.
<BAPI_WAGECOMPEXT_COSTASSIGN>-COSTOBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_WAGECOMPEXT_COSTASSIGN-WBSELEMENT, sy-vline,
  WA_BAPI_WAGECOMPEXT_COSTASSIGN-NETWORK, sy-vline,
  WA_BAPI_WAGECOMPEXT_COSTASSIGN-ACTIVITY, sy-vline,
  WA_BAPI_WAGECOMPEXT_COSTASSIGN-SALESORDER, sy-vline,
  WA_BAPI_WAGECOMPEXT_COSTASSIGN-SALESORDERITEM, sy-vline,
  WA_BAPI_WAGECOMPEXT_COSTASSIGN-FUNDSCENTER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_WAGECOMPEXT_COSTASSIGN 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_BAPI_WAGECOMPEXT_COSTASSIGN 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_BAPI_WAGECOMPEXT_COSTASSIGN INTO WA_BAPI_WAGECOMPEXT_COSTASSIGN.


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

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

*Conversion exit ABPSN, internal->external for field WBSELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_WAGECOMPEXT_COSTASSIGN-WBSELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_WAGECOMPEXT_COSTASSIGN-WBSELEMENT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit NUMCV, internal->external for field ACTIVITY
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_WAGECOMPEXT_COSTASSIGN-ACTIVITY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_WAGECOMPEXT_COSTASSIGN-ACTIVITY.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit FMCIL, internal->external for field COMMITMENTITEM
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_WAGECOMPEXT_COSTASSIGN-COMMITMENTITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_WAGECOMPEXT_COSTASSIGN-COMMITMENTITEM.
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_BAPI_WAGECOMPEXT_COSTASSIGN_STR, 
COMPANYCODE TYPE STRING,
BUSINESSAREA TYPE STRING,
COSTCENTER TYPE STRING,
ORDERID TYPE STRING,
COSTOBJECT TYPE STRING,
WBSELEMENT TYPE STRING,
NETWORK TYPE STRING,
ACTIVITY TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
FUNDSCENTER TYPE STRING,
COMMITMENTITEM TYPE STRING,
FUND TYPE STRING,
FUND_LONG TYPE STRING,
BUDGET_PERIOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_WAGECOMPEXT_COSTASSIGN_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_BAPI_WAGECOMPEXT_COSTASSIGN_STR-COMPANYCODE sy-vline 
WA_BAPI_WAGECOMPEXT_COSTASSIGN_STR-BUSINESSAREA sy-vline 
WA_BAPI_WAGECOMPEXT_COSTASSIGN_STR-COSTCENTER sy-vline 
WA_BAPI_WAGECOMPEXT_COSTASSIGN_STR-ORDERID sy-vline 
WA_BAPI_WAGECOMPEXT_COSTASSIGN_STR-COSTOBJECT sy-vline 
WA_BAPI_WAGECOMPEXT_COSTASSIGN_STR-WBSELEMENT sy-vline 
WA_BAPI_WAGECOMPEXT_COSTASSIGN_STR-NETWORK sy-vline 
WA_BAPI_WAGECOMPEXT_COSTASSIGN_STR-ACTIVITY sy-vline 
WA_BAPI_WAGECOMPEXT_COSTASSIGN_STR-SALESORDER sy-vline 
WA_BAPI_WAGECOMPEXT_COSTASSIGN_STR-SALESORDERITEM sy-vline 
WA_BAPI_WAGECOMPEXT_COSTASSIGN_STR-FUNDSCENTER sy-vline 
WA_BAPI_WAGECOMPEXT_COSTASSIGN_STR-COMMITMENTITEM sy-vline 
WA_BAPI_WAGECOMPEXT_COSTASSIGN_STR-FUND sy-vline 
WA_BAPI_WAGECOMPEXT_COSTASSIGN_STR-FUND_LONG sy-vline 
WA_BAPI_WAGECOMPEXT_COSTASSIGN_STR-BUDGET_PERIOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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