ABAP Select data from SAP table MILL_CUT_156 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MILL_CUT_156 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_CUT_156. 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_CUT_156 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_CUT_156 TYPE STANDARD TABLE OF MILL_CUT_156,
      WA_MILL_CUT_156 TYPE MILL_CUT_156,
      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_CUT_156> TYPE MILL_CUT_156.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MILL_CUT_156.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MILL_CUT_156
  INTO TABLE IT_MILL_CUT_156.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MILL_CUT_156
*  INTO TABLE @DATA(IT_MILL_CUT_1562).
*--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_CUT_156 INDEX 1 INTO DATA(WA_MILL_CUT_1562).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MILL_CUT_156 ASSIGNING <MILL_CUT_156>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MILL_CUT_156>-BWART = 1.
<MILL_CUT_156>-SHKZG = 1.
<MILL_CUT_156>-KZWES = 1.
<MILL_CUT_156>-CHNEU = 1.
<MILL_CUT_156>-KZZDE = 1.

ENDLOOP.

LOOP AT IT_MILL_CUT_156 INTO WA_MILL_CUT_156.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MILL_CUT_156-KZGRU, sy-vline,
  WA_MILL_CUT_156-KZMHD, sy-vline,
  WA_MILL_CUT_156-KZCLA, sy-vline,
  WA_MILL_CUT_156-XKCFC, sy-vline,
  WA_MILL_CUT_156-XNEBE, sy-vline,
  WA_MILL_CUT_156-J_1BNFREL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MILL_CUT_156 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_CUT_156 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_CUT_156 INTO WA_MILL_CUT_156.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_MILL_CUT_156_STR, 
BWART TYPE STRING,
SHKZG TYPE STRING,
KZWES TYPE STRING,
CHNEU TYPE STRING,
KZZDE TYPE STRING,
KZGRU TYPE STRING,
KZMHD TYPE STRING,
KZCLA TYPE STRING,
XKCFC TYPE STRING,
XNEBE TYPE STRING,
J_1BNFREL TYPE STRING,
KZDRU TYPE STRING,
KZBWA TYPE STRING,
KZKON TYPE STRING,
XOARC TYPE STRING,
RULES TYPE STRING,
XSTBW TYPE STRING,
BUSTR TYPE STRING,
XINVB TYPE STRING,
KZUML TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MILL_CUT_156_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_CUT_156_STR-BWART sy-vline 
WA_MILL_CUT_156_STR-SHKZG sy-vline 
WA_MILL_CUT_156_STR-KZWES sy-vline 
WA_MILL_CUT_156_STR-CHNEU sy-vline 
WA_MILL_CUT_156_STR-KZZDE sy-vline 
WA_MILL_CUT_156_STR-KZGRU sy-vline 
WA_MILL_CUT_156_STR-KZMHD sy-vline 
WA_MILL_CUT_156_STR-KZCLA sy-vline 
WA_MILL_CUT_156_STR-XKCFC sy-vline 
WA_MILL_CUT_156_STR-XNEBE sy-vline 
WA_MILL_CUT_156_STR-J_1BNFREL sy-vline 
WA_MILL_CUT_156_STR-KZDRU sy-vline 
WA_MILL_CUT_156_STR-KZBWA sy-vline 
WA_MILL_CUT_156_STR-KZKON sy-vline 
WA_MILL_CUT_156_STR-XOARC sy-vline 
WA_MILL_CUT_156_STR-RULES sy-vline 
WA_MILL_CUT_156_STR-XSTBW sy-vline 
WA_MILL_CUT_156_STR-BUSTR sy-vline 
WA_MILL_CUT_156_STR-XINVB sy-vline 
WA_MILL_CUT_156_STR-KZUML sy-vline      INTO ld_text SEPARATED BY SPACE.

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