ABAP Select data from SAP table CHUMOPKGPRODS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CHUMOPKGPRODS
*  INTO TABLE @DATA(IT_CHUMOPKGPRODS2).
*--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_CHUMOPKGPRODS INDEX 1 INTO DATA(WA_CHUMOPKGPRODS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CHUMOPKGPRODS>-MANDT = 1.
<CHUMOPKGPRODS>-PARENTNODE = 1.
<CHUMOPKGPRODS>-NODE = 1.
<CHUMOPKGPRODS>-HANDLINGUNITNODE = 1.
<CHUMOPKGPRODS>-HANDLINGUNITORPRODUCTNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CHUMOPKGPRODS-PRODUCTNAME, sy-vline,
  WA_CHUMOPKGPRODS-HNDLGUNITMNTRPCKGDPRODITEMTYPE, sy-vline,
  WA_CHUMOPKGPRODS-PACKAGINGMATERIAL, sy-vline,
  WA_CHUMOPKGPRODS-PACKAGINGMATERIALNAME, sy-vline,
  WA_CHUMOPKGPRODS-REFERENCEDOCUMENT, sy-vline,
  WA_CHUMOPKGPRODS-REFERENCEDOCUMENTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CHUMOPKGPRODS 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_CHUMOPKGPRODS 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_CHUMOPKGPRODS INTO WA_CHUMOPKGPRODS.


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

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

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

*Conversion exit CUNIT, internal->external for field HANDLINGUNITQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CHUMOPKGPRODS-HANDLINGUNITQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CHUMOPKGPRODS-HANDLINGUNITQUANTITYUNIT.
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_CHUMOPKGPRODS_STR, 
MANDT TYPE STRING,
PARENTNODE TYPE STRING,
NODE TYPE STRING,
HANDLINGUNITNODE TYPE STRING,
HANDLINGUNITORPRODUCTNAME TYPE STRING,
PRODUCTNAME TYPE STRING,
HNDLGUNITMNTRPCKGDPRODITEMTYPE TYPE STRING,
PACKAGINGMATERIAL TYPE STRING,
PACKAGINGMATERIALNAME TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
HANDLINGUNITREFERENCEDOCNAME TYPE STRING,
REFERENCEDOCUMENTITEM TYPE STRING,
HANDLINGUNITQUANTITY TYPE STRING,
HANDLINGUNITQUANTITYUNIT TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
STORAGELOCATION TYPE STRING,
STORAGELOCATIONNAME TYPE STRING,
BATCH TYPE STRING,
HIERARCHYNAME TYPE STRING,
HIERARCHYRANK TYPE STRING,
HIERARCHYPARENTRANK TYPE STRING,
HIERARCHYLEVEL TYPE STRING,
HIERARCHYISCYCLE TYPE STRING,
NUMBEROFHIERARCHYNODES TYPE STRING,
HIERARCHYDRILLSTATE TYPE STRING,
SHIPPINGPOINT TYPE STRING,
WAREHOUSE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CHUMOPKGPRODS_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_CHUMOPKGPRODS_STR-MANDT sy-vline 
WA_CHUMOPKGPRODS_STR-PARENTNODE sy-vline 
WA_CHUMOPKGPRODS_STR-NODE sy-vline 
WA_CHUMOPKGPRODS_STR-HANDLINGUNITNODE sy-vline 
WA_CHUMOPKGPRODS_STR-HANDLINGUNITORPRODUCTNAME sy-vline 
WA_CHUMOPKGPRODS_STR-PRODUCTNAME sy-vline 
WA_CHUMOPKGPRODS_STR-HNDLGUNITMNTRPCKGDPRODITEMTYPE sy-vline 
WA_CHUMOPKGPRODS_STR-PACKAGINGMATERIAL sy-vline 
WA_CHUMOPKGPRODS_STR-PACKAGINGMATERIALNAME sy-vline 
WA_CHUMOPKGPRODS_STR-REFERENCEDOCUMENT sy-vline 
WA_CHUMOPKGPRODS_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_CHUMOPKGPRODS_STR-HANDLINGUNITREFERENCEDOCNAME sy-vline 
WA_CHUMOPKGPRODS_STR-REFERENCEDOCUMENTITEM sy-vline 
WA_CHUMOPKGPRODS_STR-HANDLINGUNITQUANTITY sy-vline 
WA_CHUMOPKGPRODS_STR-HANDLINGUNITQUANTITYUNIT sy-vline 
WA_CHUMOPKGPRODS_STR-PLANT sy-vline 
WA_CHUMOPKGPRODS_STR-PLANTNAME sy-vline 
WA_CHUMOPKGPRODS_STR-STORAGELOCATION sy-vline 
WA_CHUMOPKGPRODS_STR-STORAGELOCATIONNAME sy-vline 
WA_CHUMOPKGPRODS_STR-BATCH sy-vline 
WA_CHUMOPKGPRODS_STR-HIERARCHYNAME sy-vline 
WA_CHUMOPKGPRODS_STR-HIERARCHYRANK sy-vline 
WA_CHUMOPKGPRODS_STR-HIERARCHYPARENTRANK sy-vline 
WA_CHUMOPKGPRODS_STR-HIERARCHYLEVEL sy-vline 
WA_CHUMOPKGPRODS_STR-HIERARCHYISCYCLE sy-vline 
WA_CHUMOPKGPRODS_STR-NUMBEROFHIERARCHYNODES sy-vline 
WA_CHUMOPKGPRODS_STR-HIERARCHYDRILLSTATE sy-vline 
WA_CHUMOPKGPRODS_STR-SHIPPINGPOINT sy-vline 
WA_CHUMOPKGPRODS_STR-WAREHOUSE sy-vline      INTO ld_text SEPARATED BY SPACE.

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