ABAP Select data from SAP table CPOITEMFS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPOITEMFS
*  INTO TABLE @DATA(IT_CPOITEMFS2).
*--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_CPOITEMFS INDEX 1 INTO DATA(WA_CPOITEMFS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPOITEMFS>-MANDT = 1.
<CPOITEMFS>-PROCUREMENTHUBPO = 1.
<CPOITEMFS>-PURCHASEORDERITEM = 1.
<CPOITEMFS>-EXTSOURCESYSTEM = 1.
<CPOITEMFS>-PROCMTHUBPOITEMUNIQUEID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPOITEMFS-PURCHASEORDERITEMCATEGORY, sy-vline,
  WA_CPOITEMFS-MATERIAL, sy-vline,
  WA_CPOITEMFS-MATERIALNAME, sy-vline,
  WA_CPOITEMFS-PURCHASEORDERITEMTEXT, sy-vline,
  WA_CPOITEMFS-MATERIALGROUP, sy-vline,
  WA_CPOITEMFS-PRODUCTGROUPNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPOITEMFS 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_CPOITEMFS 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_CPOITEMFS INTO WA_CPOITEMFS.


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

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CPOITEMFS-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPOITEMFS-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field PURCHASEORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPOITEMFS-PURCHASEORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPOITEMFS-PURCHASEORDERQUANTITYUNIT.
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_CPOITEMFS_STR, 
MANDT TYPE STRING,
PROCUREMENTHUBPO TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
EXTSOURCESYSTEM TYPE STRING,
PROCMTHUBPOITEMUNIQUEID TYPE STRING,
PURCHASEORDERITEMCATEGORY TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
PURCHASEORDERITEMTEXT TYPE STRING,
MATERIALGROUP TYPE STRING,
PRODUCTGROUPNAME TYPE STRING,
PLANT TYPE STRING,
PROCMTHUBPLANTNAME TYPE STRING,
ORDERQUANTITY TYPE STRING,
NETPRICEAMOUNT TYPE STRING,
NETPRICEQUANTITY TYPE STRING,
NETAMOUNT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
ORDERPRICEUNIT TYPE STRING,
PURCHASEORDERQUANTITYUNIT TYPE STRING,
PURCHASEORDERITEMSTATUS TYPE STRING,
SCHEDULELINEDELIVERYDATE TYPE STRING,
COMPANYCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPOITEMFS_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_CPOITEMFS_STR-MANDT sy-vline 
WA_CPOITEMFS_STR-PROCUREMENTHUBPO sy-vline 
WA_CPOITEMFS_STR-PURCHASEORDERITEM sy-vline 
WA_CPOITEMFS_STR-EXTSOURCESYSTEM sy-vline 
WA_CPOITEMFS_STR-PROCMTHUBPOITEMUNIQUEID sy-vline 
WA_CPOITEMFS_STR-PURCHASEORDERITEMCATEGORY sy-vline 
WA_CPOITEMFS_STR-MATERIAL sy-vline 
WA_CPOITEMFS_STR-MATERIALNAME sy-vline 
WA_CPOITEMFS_STR-PURCHASEORDERITEMTEXT sy-vline 
WA_CPOITEMFS_STR-MATERIALGROUP sy-vline 
WA_CPOITEMFS_STR-PRODUCTGROUPNAME sy-vline 
WA_CPOITEMFS_STR-PLANT sy-vline 
WA_CPOITEMFS_STR-PROCMTHUBPLANTNAME sy-vline 
WA_CPOITEMFS_STR-ORDERQUANTITY sy-vline 
WA_CPOITEMFS_STR-NETPRICEAMOUNT sy-vline 
WA_CPOITEMFS_STR-NETPRICEQUANTITY sy-vline 
WA_CPOITEMFS_STR-NETAMOUNT sy-vline 
WA_CPOITEMFS_STR-DOCUMENTCURRENCY sy-vline 
WA_CPOITEMFS_STR-ORDERPRICEUNIT sy-vline 
WA_CPOITEMFS_STR-PURCHASEORDERQUANTITYUNIT sy-vline 
WA_CPOITEMFS_STR-PURCHASEORDERITEMSTATUS sy-vline 
WA_CPOITEMFS_STR-SCHEDULELINEDELIVERYDATE sy-vline 
WA_CPOITEMFS_STR-COMPANYCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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