ABAP Select data from SAP table MILL_MM_OB_INFO1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MILL_MM_OB_INFO1 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_MM_OB_INFO1. 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_MM_OB_INFO1 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_MM_OB_INFO1 TYPE STANDARD TABLE OF MILL_MM_OB_INFO1,
      WA_MILL_MM_OB_INFO1 TYPE MILL_MM_OB_INFO1,
      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_MM_OB_INFO1> TYPE MILL_MM_OB_INFO1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MILL_MM_OB_INFO1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MILL_MM_OB_INFO1
  INTO TABLE IT_MILL_MM_OB_INFO1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MILL_MM_OB_INFO1
*  INTO TABLE @DATA(IT_MILL_MM_OB_INFO12).
*--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_MM_OB_INFO1 INDEX 1 INTO DATA(WA_MILL_MM_OB_INFO12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MILL_MM_OB_INFO1 ASSIGNING <MILL_MM_OB_INFO1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MILL_MM_OB_INFO1>-ICON_UC2 = 1.
<MILL_MM_OB_INFO1>-UCWRK = 1.
<MILL_MM_OB_INFO1>-UCMAT = 1.
<MILL_MM_OB_INFO1>-UCCHA = 1.
<MILL_MM_OB_INFO1>-CHARG = 1.

ENDLOOP.

LOOP AT IT_MILL_MM_OB_INFO1 INTO WA_MILL_MM_OB_INFO1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MILL_MM_OB_INFO1-KZBEW, sy-vline,
  WA_MILL_MM_OB_INFO1-AUFNR, sy-vline,
  WA_MILL_MM_OB_INFO1-AUFPS, sy-vline,
  WA_MILL_MM_OB_INFO1-EBELN, sy-vline,
  WA_MILL_MM_OB_INFO1-EBELP, sy-vline,
  WA_MILL_MM_OB_INFO1-XSELE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MILL_MM_OB_INFO1 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_MM_OB_INFO1 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_MM_OB_INFO1 INTO WA_MILL_MM_OB_INFO1.


*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 UCMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MILL_MM_OB_INFO1-UCMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MILL_MM_OB_INFO1-UCMAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MILL_MM_OB_INFO1-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MILL_MM_OB_INFO1-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MILL_MM_OB_INFO1-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MILL_MM_OB_INFO1-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MILL_MM_OB_INFO1-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MILL_MM_OB_INFO1-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_MM_OB_INFO1_STR, 
ICON_UC2 TYPE STRING,
UCWRK TYPE STRING,
UCMAT TYPE STRING,
UCCHA TYPE STRING,
CHARG TYPE STRING,
KZBEW TYPE STRING,
AUFNR TYPE STRING,
AUFPS TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
XSELE TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
VRFMG TYPE STRING,
SORT_TABIX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MILL_MM_OB_INFO1_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_MM_OB_INFO1_STR-ICON_UC2 sy-vline 
WA_MILL_MM_OB_INFO1_STR-UCWRK sy-vline 
WA_MILL_MM_OB_INFO1_STR-UCMAT sy-vline 
WA_MILL_MM_OB_INFO1_STR-UCCHA sy-vline 
WA_MILL_MM_OB_INFO1_STR-CHARG sy-vline 
WA_MILL_MM_OB_INFO1_STR-KZBEW sy-vline 
WA_MILL_MM_OB_INFO1_STR-AUFNR sy-vline 
WA_MILL_MM_OB_INFO1_STR-AUFPS sy-vline 
WA_MILL_MM_OB_INFO1_STR-EBELN sy-vline 
WA_MILL_MM_OB_INFO1_STR-EBELP sy-vline 
WA_MILL_MM_OB_INFO1_STR-XSELE sy-vline 
WA_MILL_MM_OB_INFO1_STR-MENGE sy-vline 
WA_MILL_MM_OB_INFO1_STR-MEINS sy-vline 
WA_MILL_MM_OB_INFO1_STR-VRFMG sy-vline 
WA_MILL_MM_OB_INFO1_STR-SORT_TABIX sy-vline      INTO ld_text SEPARATED BY SPACE.

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