ABAP Select data from SAP table FACUHMIGIIDCD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FACUHMIGIIDCD
*  INTO TABLE @DATA(IT_FACUHMIGIIDCD2).
*--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_FACUHMIGIIDCD INDEX 1 INTO DATA(WA_FACUHMIGIIDCD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FACUHMIGIIDCD>-MANDT = 1.
<FACUHMIGIIDCD>-FIELD = 1.
<FACUHMIGIIDCD>-HIERARCHYTYPE = 1.
<FACUHMIGIIDCD>-HIERARCHYOLDID = 1.
<FACUHMIGIIDCD>-SUBCLASS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FACUHMIGIIDCD-CHANGEDBY, sy-vline,
  WA_FACUHMIGIIDCD-CHANGEDON, sy-vline,
  WA_FACUHMIGIIDCD-CHANGEDAT, sy-vline,
  WA_FACUHMIGIIDCD-ACTION, sy-vline,
  WA_FACUHMIGIIDCD-FIELDTEXT, sy-vline,
  WA_FACUHMIGIIDCD-OLDVALUE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FACUHMIGIIDCD 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_FACUHMIGIIDCD 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_FACUHMIGIIDCD INTO WA_FACUHMIGIIDCD.


*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_FACUHMIGIIDCD_STR, 
MANDT TYPE STRING,
FIELD TYPE STRING,
HIERARCHYTYPE TYPE STRING,
HIERARCHYOLDID TYPE STRING,
SUBCLASS TYPE STRING,
CHANGEDBY TYPE STRING,
CHANGEDON TYPE STRING,
CHANGEDAT TYPE STRING,
ACTION TYPE STRING,
FIELDTEXT TYPE STRING,
OLDVALUE TYPE STRING,
NEWVALUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FACUHMIGIIDCD_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_FACUHMIGIIDCD_STR-MANDT sy-vline 
WA_FACUHMIGIIDCD_STR-FIELD sy-vline 
WA_FACUHMIGIIDCD_STR-HIERARCHYTYPE sy-vline 
WA_FACUHMIGIIDCD_STR-HIERARCHYOLDID sy-vline 
WA_FACUHMIGIIDCD_STR-SUBCLASS sy-vline 
WA_FACUHMIGIIDCD_STR-CHANGEDBY sy-vline 
WA_FACUHMIGIIDCD_STR-CHANGEDON sy-vline 
WA_FACUHMIGIIDCD_STR-CHANGEDAT sy-vline 
WA_FACUHMIGIIDCD_STR-ACTION sy-vline 
WA_FACUHMIGIIDCD_STR-FIELDTEXT sy-vline 
WA_FACUHMIGIIDCD_STR-OLDVALUE sy-vline 
WA_FACUHMIGIIDCD_STR-NEWVALUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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