ABAP Select data from SAP table CPAOVWORDITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPAOVWORDITM
*  INTO TABLE @DATA(IT_CPAOVWORDITM2).
*--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_CPAOVWORDITM INDEX 1 INTO DATA(WA_CPAOVWORDITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPAOVWORDITM>-MANDT = 1.
<CPAOVWORDITM>-ORDERITEM = 1.
<CPAOVWORDITM>-PRODUCTALLOCATIONOBJECT = 1.
<CPAOVWORDITM>-PRODALLOCATPSTATUS = 1.
<CPAOVWORDITM>-PRODALLOCSTATUSCRITICALITY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPAOVWORDITM-NROFPRODALLOCORDERITEMS, sy-vline,
  WA_CPAOVWORDITM-TOTALNROFPRODALLOCORDERITEMS, sy-vline,
  WA_CPAOVWORDITM-PRODALLOCATPSTATUSDESC, sy-vline,
  WA_CPAOVWORDITM-PRODALLOCATIONPERIODSTARTDATE, sy-vline,
  WA_CPAOVWORDITM-PRODUCTALLOCATIONPERIODENDDATE, sy-vline,
  WA_CPAOVWORDITM-PRODALLOCCHARCCTLGPATHUUID01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPAOVWORDITM 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_CPAOVWORDITM 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_CPAOVWORDITM INTO WA_CPAOVWORDITM.


*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 PRODUCTALLOCATIONOBJECT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPAOVWORDITM-PRODUCTALLOCATIONOBJECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPAOVWORDITM-PRODUCTALLOCATIONOBJECT.
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_CPAOVWORDITM_STR, 
MANDT TYPE STRING,
ORDERITEM TYPE STRING,
PRODUCTALLOCATIONOBJECT TYPE STRING,
PRODALLOCATPSTATUS TYPE STRING,
PRODALLOCSTATUSCRITICALITY TYPE STRING,
NROFPRODALLOCORDERITEMS TYPE STRING,
TOTALNROFPRODALLOCORDERITEMS TYPE STRING,
PRODALLOCATPSTATUSDESC TYPE STRING,
PRODALLOCATIONPERIODSTARTDATE TYPE STRING,
PRODUCTALLOCATIONPERIODENDDATE TYPE STRING,
PRODALLOCCHARCCTLGPATHUUID01 TYPE STRING,
GROUPEDPRODALLOCCHARC01 TYPE STRING,
PRODALLOCCHARCCTLGPATHUUID02 TYPE STRING,
GROUPEDPRODALLOCCHARC02 TYPE STRING,
PRODALLOCCHARCCTLGPATHUUID03 TYPE STRING,
GROUPEDPRODALLOCCHARC03 TYPE STRING,
PRODALLOCCHARCCTLGPATHUUID04 TYPE STRING,
GROUPEDPRODALLOCCHARC04 TYPE STRING,
PRODALLOCCHARCCTLGPATHUUID05 TYPE STRING,
GROUPEDPRODALLOCCHARC05 TYPE STRING,
PRODALLOCCHARCCTLGPATHUUID06 TYPE STRING,
GROUPEDPRODALLOCCHARC06 TYPE STRING,
PRODALLOCCHARCCTLGPATHUUID07 TYPE STRING,
GROUPEDPRODALLOCCHARC07 TYPE STRING,
PRODALLOCCHARCCTLGPATHUUID08 TYPE STRING,
GROUPEDPRODALLOCCHARC08 TYPE STRING,
PRODALLOCCHARCCTLGPATHUUID09 TYPE STRING,
GROUPEDPRODALLOCCHARC09 TYPE STRING,
PRODALLOCCHARCCTLGPATHUUID10 TYPE STRING,
GROUPEDPRODALLOCCHARC10 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPAOVWORDITM_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_CPAOVWORDITM_STR-MANDT sy-vline 
WA_CPAOVWORDITM_STR-ORDERITEM sy-vline 
WA_CPAOVWORDITM_STR-PRODUCTALLOCATIONOBJECT sy-vline 
WA_CPAOVWORDITM_STR-PRODALLOCATPSTATUS sy-vline 
WA_CPAOVWORDITM_STR-PRODALLOCSTATUSCRITICALITY sy-vline 
WA_CPAOVWORDITM_STR-NROFPRODALLOCORDERITEMS sy-vline 
WA_CPAOVWORDITM_STR-TOTALNROFPRODALLOCORDERITEMS sy-vline 
WA_CPAOVWORDITM_STR-PRODALLOCATPSTATUSDESC sy-vline 
WA_CPAOVWORDITM_STR-PRODALLOCATIONPERIODSTARTDATE sy-vline 
WA_CPAOVWORDITM_STR-PRODUCTALLOCATIONPERIODENDDATE sy-vline 
WA_CPAOVWORDITM_STR-PRODALLOCCHARCCTLGPATHUUID01 sy-vline 
WA_CPAOVWORDITM_STR-GROUPEDPRODALLOCCHARC01 sy-vline 
WA_CPAOVWORDITM_STR-PRODALLOCCHARCCTLGPATHUUID02 sy-vline 
WA_CPAOVWORDITM_STR-GROUPEDPRODALLOCCHARC02 sy-vline 
WA_CPAOVWORDITM_STR-PRODALLOCCHARCCTLGPATHUUID03 sy-vline 
WA_CPAOVWORDITM_STR-GROUPEDPRODALLOCCHARC03 sy-vline 
WA_CPAOVWORDITM_STR-PRODALLOCCHARCCTLGPATHUUID04 sy-vline 
WA_CPAOVWORDITM_STR-GROUPEDPRODALLOCCHARC04 sy-vline 
WA_CPAOVWORDITM_STR-PRODALLOCCHARCCTLGPATHUUID05 sy-vline 
WA_CPAOVWORDITM_STR-GROUPEDPRODALLOCCHARC05 sy-vline 
WA_CPAOVWORDITM_STR-PRODALLOCCHARCCTLGPATHUUID06 sy-vline 
WA_CPAOVWORDITM_STR-GROUPEDPRODALLOCCHARC06 sy-vline 
WA_CPAOVWORDITM_STR-PRODALLOCCHARCCTLGPATHUUID07 sy-vline 
WA_CPAOVWORDITM_STR-GROUPEDPRODALLOCCHARC07 sy-vline 
WA_CPAOVWORDITM_STR-PRODALLOCCHARCCTLGPATHUUID08 sy-vline 
WA_CPAOVWORDITM_STR-GROUPEDPRODALLOCCHARC08 sy-vline 
WA_CPAOVWORDITM_STR-PRODALLOCCHARCCTLGPATHUUID09 sy-vline 
WA_CPAOVWORDITM_STR-GROUPEDPRODALLOCCHARC09 sy-vline 
WA_CPAOVWORDITM_STR-PRODALLOCCHARCCTLGPATHUUID10 sy-vline 
WA_CPAOVWORDITM_STR-GROUPEDPRODALLOCCHARC10 sy-vline      INTO ld_text SEPARATED BY SPACE.

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