ABAP Select data from SAP table CCHGIMPPUOITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCHGIMPPUOITEM
*  INTO TABLE @DATA(IT_CCHGIMPPUOITEM2).
*--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_CCHGIMPPUOITEM INDEX 1 INTO DATA(WA_CCHGIMPPUOITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCHGIMPPUOITEM>-MANDT = 1.
<CCHGIMPPUOITEM>-PURCHASEORDER = 1.
<CCHGIMPPUOITEM>-PURCHASEORDERITEM = 1.
<CCHGIMPPUOITEM>-PURCHASEORDERCATEGORY = 1.
<CCHGIMPPUOITEM>-MATERIAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCHGIMPPUOITEM-MATERIALNAME, sy-vline,
  WA_CCHGIMPPUOITEM-ORDERQUANTITY, sy-vline,
  WA_CCHGIMPPUOITEM-SCHEDULELINEDELIVERYDATE, sy-vline,
  WA_CCHGIMPPUOITEM-PURCHASINGDOCUMENTCATEGORYNAME, sy-vline,
  WA_CCHGIMPPUOITEM-SALESDOCUMENT, sy-vline,
  WA_CCHGIMPPUOITEM-SALESDOCUMENTITEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCHGIMPPUOITEM 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_CCHGIMPPUOITEM 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_CCHGIMPPUOITEM INTO WA_CCHGIMPPUOITEM.


*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_CCHGIMPPUOITEM-PURCHASEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCHGIMPPUOITEM-PURCHASEORDER.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ABPSP, internal->external for field WBSELEMENTINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CCHGIMPPUOITEM-WBSELEMENTINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCHGIMPPUOITEM-WBSELEMENTINTERNALID.
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_CCHGIMPPUOITEM_STR, 
MANDT TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
PURCHASEORDERCATEGORY TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
ORDERQUANTITY TYPE STRING,
SCHEDULELINEDELIVERYDATE TYPE STRING,
PURCHASINGDOCUMENTCATEGORYNAME TYPE STRING,
SALESDOCUMENT TYPE STRING,
SALESDOCUMENTITEM TYPE STRING,
SCHEDULELINE TYPE STRING,
MANUFACTURINGORDER TYPE STRING,
WBSELEMENT TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
PURCHASEORDERTYPE TYPE STRING,
NETCHANGEANALYSISPATH TYPE STRING,
PRODUCTIONORDER TYPE STRING,
ISDEFINITE TYPE STRING,
ISCHANGED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCHGIMPPUOITEM_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_CCHGIMPPUOITEM_STR-MANDT sy-vline 
WA_CCHGIMPPUOITEM_STR-PURCHASEORDER sy-vline 
WA_CCHGIMPPUOITEM_STR-PURCHASEORDERITEM sy-vline 
WA_CCHGIMPPUOITEM_STR-PURCHASEORDERCATEGORY sy-vline 
WA_CCHGIMPPUOITEM_STR-MATERIAL sy-vline 
WA_CCHGIMPPUOITEM_STR-MATERIALNAME sy-vline 
WA_CCHGIMPPUOITEM_STR-ORDERQUANTITY sy-vline 
WA_CCHGIMPPUOITEM_STR-SCHEDULELINEDELIVERYDATE sy-vline 
WA_CCHGIMPPUOITEM_STR-PURCHASINGDOCUMENTCATEGORYNAME sy-vline 
WA_CCHGIMPPUOITEM_STR-SALESDOCUMENT sy-vline 
WA_CCHGIMPPUOITEM_STR-SALESDOCUMENTITEM sy-vline 
WA_CCHGIMPPUOITEM_STR-SCHEDULELINE sy-vline 
WA_CCHGIMPPUOITEM_STR-MANUFACTURINGORDER sy-vline 
WA_CCHGIMPPUOITEM_STR-WBSELEMENT sy-vline 
WA_CCHGIMPPUOITEM_STR-WBSELEMENTINTERNALID sy-vline 
WA_CCHGIMPPUOITEM_STR-PURCHASEORDERTYPE sy-vline 
WA_CCHGIMPPUOITEM_STR-NETCHANGEANALYSISPATH sy-vline 
WA_CCHGIMPPUOITEM_STR-PRODUCTIONORDER sy-vline 
WA_CCHGIMPPUOITEM_STR-ISDEFINITE sy-vline 
WA_CCHGIMPPUOITEM_STR-ISCHANGED sy-vline      INTO ld_text SEPARATED BY SPACE.

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