ABAP Select data from SAP table ASSGMTCOSTCTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ASSGMTCOSTCTR
*  INTO TABLE @DATA(IT_ASSGMTCOSTCTR2).
*--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_ASSGMTCOSTCTR INDEX 1 INTO DATA(WA_ASSGMTCOSTCTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ASSGMTCOSTCTR>-MANDT = 1.
<ASSGMTCOSTCTR>-DFSASSGMTUUID = 1.
<ASSGMTCOSTCTR>-DFSMAINTPLATFORMLONGNAME = 1.
<ASSGMTCOSTCTR>-DFSMAINTPLATFORMID = 1.
<ASSGMTCOSTCTR>-DFSMAINTPLATFORMUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ASSGMTCOSTCTR-COSTCENTERNAME, sy-vline,
  WA_ASSGMTCOSTCTR-COSTCENTER, sy-vline,
  WA_ASSGMTCOSTCTR-CONTROLLINGAREA, sy-vline,
  WA_ASSGMTCOSTCTR-DFSMAINTBUSINESSOBJECTIDFOED, sy-vline,
  WA_ASSGMTCOSTCTR-DFSASSGMTSOURCETYPE, sy-vline,
  WA_ASSGMTCOSTCTR-DFSASSGMTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ASSGMTCOSTCTR 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_ASSGMTCOSTCTR 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_ASSGMTCOSTCTR INTO WA_ASSGMTCOSTCTR.


*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_ASSGMTCOSTCTR-COSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ASSGMTCOSTCTR-COSTCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field DFSMAINTBUSINESSOBJECTIDFOED
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ASSGMTCOSTCTR-DFSMAINTBUSINESSOBJECTIDFOED
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ASSGMTCOSTCTR-DFSMAINTBUSINESSOBJECTIDFOED.
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_ASSGMTCOSTCTR_STR, 
MANDT TYPE STRING,
DFSASSGMTUUID TYPE STRING,
DFSMAINTPLATFORMLONGNAME TYPE STRING,
DFSMAINTPLATFORMID TYPE STRING,
DFSMAINTPLATFORMUUID TYPE STRING,
COSTCENTERNAME TYPE STRING,
COSTCENTER TYPE STRING,
CONTROLLINGAREA TYPE STRING,
DFSMAINTBUSINESSOBJECTIDFOED TYPE STRING,
DFSASSGMTSOURCETYPE TYPE STRING,
DFSASSGMTTYPE TYPE STRING,
DFSASSGMTSTATUSCODE TYPE STRING,
DFSASSGMTVALDTYSTRTDATE TYPE STRING,
DFSASSGMTVALDTYENDDATE TYPE STRING,
DFSMAINTBUSINESSOBJECTTYPEFOED TYPE STRING,
DFSMAINTBUSINESSOBJECTTYPE TYPE STRING,
DFSPLATFORMDETAILSTEXT TYPE STRING,
DFSMAINTPLATFORMEXTENSIONTEXT TYPE STRING,
DFSPLATFORMEXTENSION TYPE STRING,
DFSASSGMTCOMMENT TYPE STRING,
DFSISSTRUCAUTHZNENABLED TYPE STRING,
DFSASSGMTSOURCEOBJECTUUID TYPE STRING,
DFSASSGMTCREATIONDATETIME TYPE STRING,
DFSASSGMTCREATEDBYUSER TYPE STRING,
DFSASSGMTCHANGEDATETIME TYPE STRING,
DFSASSGMTLASTCHGDBYUSER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ASSGMTCOSTCTR_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_ASSGMTCOSTCTR_STR-MANDT sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSASSGMTUUID sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSMAINTPLATFORMLONGNAME sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSMAINTPLATFORMID sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSMAINTPLATFORMUUID sy-vline 
WA_ASSGMTCOSTCTR_STR-COSTCENTERNAME sy-vline 
WA_ASSGMTCOSTCTR_STR-COSTCENTER sy-vline 
WA_ASSGMTCOSTCTR_STR-CONTROLLINGAREA sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSMAINTBUSINESSOBJECTIDFOED sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSASSGMTSOURCETYPE sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSASSGMTTYPE sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSASSGMTSTATUSCODE sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSASSGMTVALDTYSTRTDATE sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSASSGMTVALDTYENDDATE sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSMAINTBUSINESSOBJECTTYPEFOED sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSMAINTBUSINESSOBJECTTYPE sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSPLATFORMDETAILSTEXT sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSMAINTPLATFORMEXTENSIONTEXT sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSPLATFORMEXTENSION sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSASSGMTCOMMENT sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSISSTRUCAUTHZNENABLED sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSASSGMTSOURCEOBJECTUUID sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSASSGMTCREATIONDATETIME sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSASSGMTCREATEDBYUSER sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSASSGMTCHANGEDATETIME sy-vline 
WA_ASSGMTCOSTCTR_STR-DFSASSGMTLASTCHGDBYUSER sy-vline      INTO ld_text SEPARATED BY SPACE.

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