ABAP Select data from SAP table /MDG/_SK_0G_FP_CONSUNIT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /MDG/_SK_0G_FP_CONSUNIT 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 /MDG/_SK_0G_FP_CONSUNIT. 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 /MDG/_SK_0G_FP_CONSUNIT 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_/MDG/_SK_0G_FP_CONSUNIT TYPE STANDARD TABLE OF /MDG/_SK_0G_FP_CONSUNIT,
      WA_/MDG/_SK_0G_FP_CONSUNIT TYPE /MDG/_SK_0G_FP_CONSUNIT,
      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: </MDG/_SK_0G_FP_CONSUNIT> TYPE /MDG/_SK_0G_FP_CONSUNIT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/MDG/_SK_0G_FP_CONSUNIT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /MDG/_SK_0G_FP_CONSUNIT
  INTO TABLE IT_/MDG/_SK_0G_FP_CONSUNIT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MDG/_SK_0G_FP_CONSUNIT
*  INTO TABLE @DATA(IT_/MDG/_SK_0G_FP_CONSUNIT2).
*--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_/MDG/_SK_0G_FP_CONSUNIT INDEX 1 INTO DATA(WA_/MDG/_SK_0G_FP_CONSUNIT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/MDG/_SK_0G_FP_CONSUNIT ASSIGNING </MDG/_SK_0G_FP_CONSUNIT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MDG/_SK_0G_FP_CONSUNIT>-CONSCHAR = 1.
</MDG/_SK_0G_FP_CONSUNIT>-CONSUNIT = 1.
</MDG/_SK_0G_FP_CONSUNIT>-USMD_FP = 1.
</MDG/_SK_0G_FP_CONSUNIT>-CONSCHAR = 1.
</MDG/_SK_0G_FP_CONSUNIT>-CONSUNIT = 1.

ENDLOOP.

LOOP AT IT_/MDG/_SK_0G_FP_CONSUNIT INTO WA_/MDG/_SK_0G_FP_CONSUNIT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MDG/_SK_0G_FP_CONSUNIT-CACU, sy-vline,
  WA_/MDG/_SK_0G_FP_CONSUNIT-CCCU, sy-vline,
  WA_/MDG/_SK_0G_FP_CONSUNIT-COMPCU, sy-vline,
  WA_/MDG/_SK_0G_FP_CONSUNIT-CU1STDEP, sy-vline,
  WA_/MDG/_SK_0G_FP_CONSUNIT-CU1STDEY, sy-vline,
  WA_/MDG/_SK_0G_FP_CONSUNIT-CUDESC1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MDG/_SK_0G_FP_CONSUNIT 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_/MDG/_SK_0G_FP_CONSUNIT 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_/MDG/_SK_0G_FP_CONSUNIT INTO WA_/MDG/_SK_0G_FP_CONSUNIT.


*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 CONSUNIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MDG/_SK_0G_FP_CONSUNIT-CONSUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MDG/_SK_0G_FP_CONSUNIT-CONSUNIT.
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_/MDG/_SK_0G_FP_CONSUNIT_STR, 
CONSCHAR TYPE STRING,
CONSUNIT TYPE STRING,
USMD_FP TYPE STRING,
CONSCHAR TYPE STRING,
CONSUNIT TYPE STRING,
CACU TYPE STRING,
CCCU TYPE STRING,
COMPCU TYPE STRING,
CU1STDEP TYPE STRING,
CU1STDEY TYPE STRING,
CUDESC1 TYPE STRING,
CUDESC2 TYPE STRING,
CUFISCYV TYPE STRING,
CURRCU TYPE STRING,
CUTAXRATE TYPE STRING,
CUTCU TYPE STRING,
DIVCU TYPE STRING,
ICCONU TYPE STRING,
ICCONUFLG TYPE STRING,
MUCU TYPE STRING,
PCTRCU TYPE STRING,
SCALFACTR TYPE STRING,
TXTLG TYPE STRING,
TXTMI TYPE STRING,
TXTSH TYPE STRING,
USMD_ENT_CHNG_AT TYPE STRING,
USMD_ENT_CHNG_BY TYPE STRING,
USMD_ENT_CRTD_AT TYPE STRING,
USMD_ENT_CRTD_BY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MDG/_SK_0G_FP_CONSUNIT_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_/MDG/_SK_0G_FP_CONSUNIT_STR-CONSCHAR sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-CONSUNIT sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-USMD_FP sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-CONSCHAR sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-CONSUNIT sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-CACU sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-CCCU sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-COMPCU sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-CU1STDEP sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-CU1STDEY sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-CUDESC1 sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-CUDESC2 sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-CUFISCYV sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-CURRCU sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-CUTAXRATE sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-CUTCU sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-DIVCU sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-ICCONU sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-ICCONUFLG sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-MUCU sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-PCTRCU sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-SCALFACTR sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-TXTLG sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-TXTMI sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-TXTSH sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-USMD_ENT_CHNG_AT sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-USMD_ENT_CHNG_BY sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-USMD_ENT_CRTD_AT sy-vline 
WA_/MDG/_SK_0G_FP_CONSUNIT_STR-USMD_ENT_CRTD_BY sy-vline      INTO ld_text SEPARATED BY SPACE.

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