ABAP Select data from SAP table MILL_PP_KOM into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MILL_PP_KOM
*  INTO TABLE @DATA(IT_MILL_PP_KOM2).
*--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_MILL_PP_KOM INDEX 1 INTO DATA(WA_MILL_PP_KOM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MILL_PP_KOM>-POSNR = 1.
<MILL_PP_KOM>-MATNR = 1.
<MILL_PP_KOM>-PSMNG = 1.
<MILL_PP_KOM>-MEINS = 1.
<MILL_PP_KOM>-CHARG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MILL_PP_KOM-DWERK, sy-vline,
  WA_MILL_PP_KOM-MARK, sy-vline,
  WA_MILL_PP_KOM-CUOBJ, sy-vline,
  WA_MILL_PP_KOM-CHOBJ, sy-vline,
  WA_MILL_PP_KOM-KZKFG, sy-vline,
  WA_MILL_PP_KOM-RSNUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MILL_PP_KOM 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_MILL_PP_KOM 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_MILL_PP_KOM INTO WA_MILL_PP_KOM.


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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MILL_PP_KOM-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MILL_PP_KOM-MEINS.
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_MILL_PP_KOM_STR, 
POSNR TYPE STRING,
MATNR TYPE STRING,
PSMNG TYPE STRING,
MEINS TYPE STRING,
CHARG TYPE STRING,
DWERK TYPE STRING,
MARK TYPE STRING,
CUOBJ TYPE STRING,
CHOBJ TYPE STRING,
KZKFG TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
RSART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MILL_PP_KOM_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_MILL_PP_KOM_STR-POSNR sy-vline 
WA_MILL_PP_KOM_STR-MATNR sy-vline 
WA_MILL_PP_KOM_STR-PSMNG sy-vline 
WA_MILL_PP_KOM_STR-MEINS sy-vline 
WA_MILL_PP_KOM_STR-CHARG sy-vline 
WA_MILL_PP_KOM_STR-DWERK sy-vline 
WA_MILL_PP_KOM_STR-MARK sy-vline 
WA_MILL_PP_KOM_STR-CUOBJ sy-vline 
WA_MILL_PP_KOM_STR-CHOBJ sy-vline 
WA_MILL_PP_KOM_STR-KZKFG sy-vline 
WA_MILL_PP_KOM_STR-RSNUM sy-vline 
WA_MILL_PP_KOM_STR-RSPOS sy-vline 
WA_MILL_PP_KOM_STR-RSART sy-vline      INTO ld_text SEPARATED BY SPACE.

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