ABAP Select data from SAP table CDOCLWBSELE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CDOCLWBSELE
*  INTO TABLE @DATA(IT_CDOCLWBSELE2).
*--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_CDOCLWBSELE INDEX 1 INTO DATA(WA_CDOCLWBSELE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CDOCLWBSELE>-MANDT = 1.
<CDOCLWBSELE>-PURCHASEORDER = 1.
<CDOCLWBSELE>-PURCHASEORDERITEM = 1.
<CDOCLWBSELE>-ACCOUNTASSIGNMENTNUMBER = 1.
<CDOCLWBSELE>-SALESORDER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CDOCLWBSELE-SALESORDERITEM, sy-vline,
  WA_CDOCLWBSELE-WBSELEMENTINTERNALID, sy-vline,
  WA_CDOCLWBSELE-COSTCENTER, sy-vline,
  WA_CDOCLWBSELE-CONTROLLINGAREA, sy-vline,
  WA_CDOCLWBSELE-FUNCTIONALAREA, sy-vline,
  WA_CDOCLWBSELE-GLACCOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CDOCLWBSELE 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_CDOCLWBSELE 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_CDOCLWBSELE INTO WA_CDOCLWBSELE.


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

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

*Conversion exit ABPSP, internal->external for field WBSELEMENTINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CDOCLWBSELE-WBSELEMENTINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDOCLWBSELE-WBSELEMENTINTERNALID.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ABPSN, internal->external for field WBSELEMENTEXTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_CDOCLWBSELE-WBSELEMENTEXTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDOCLWBSELE-WBSELEMENTEXTERNALID.
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_CDOCLWBSELE_STR, 
MANDT TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
ACCOUNTASSIGNMENTNUMBER TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
COSTCENTER TYPE STRING,
CONTROLLINGAREA TYPE STRING,
FUNCTIONALAREA TYPE STRING,
GLACCOUNT TYPE STRING,
WBSELEMENTEXTERNALID TYPE STRING,
WBSELEMENTOBJECT TYPE STRING,
WORKPACKAGEFULLNAME TYPE STRING,
WBSDESCRIPTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CDOCLWBSELE_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_CDOCLWBSELE_STR-MANDT sy-vline 
WA_CDOCLWBSELE_STR-PURCHASEORDER sy-vline 
WA_CDOCLWBSELE_STR-PURCHASEORDERITEM sy-vline 
WA_CDOCLWBSELE_STR-ACCOUNTASSIGNMENTNUMBER sy-vline 
WA_CDOCLWBSELE_STR-SALESORDER sy-vline 
WA_CDOCLWBSELE_STR-SALESORDERITEM sy-vline 
WA_CDOCLWBSELE_STR-WBSELEMENTINTERNALID sy-vline 
WA_CDOCLWBSELE_STR-COSTCENTER sy-vline 
WA_CDOCLWBSELE_STR-CONTROLLINGAREA sy-vline 
WA_CDOCLWBSELE_STR-FUNCTIONALAREA sy-vline 
WA_CDOCLWBSELE_STR-GLACCOUNT sy-vline 
WA_CDOCLWBSELE_STR-WBSELEMENTEXTERNALID sy-vline 
WA_CDOCLWBSELE_STR-WBSELEMENTOBJECT sy-vline 
WA_CDOCLWBSELE_STR-WORKPACKAGEFULLNAME sy-vline 
WA_CDOCLWBSELE_STR-WBSDESCRIPTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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