ABAP Select data from SAP table UCF0030 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP UCF0030 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 UCF0030. 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 UCF0030 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_UCF0030 TYPE STANDARD TABLE OF UCF0030,
      WA_UCF0030 TYPE UCF0030,
      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: <UCF0030> TYPE UCF0030.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_UCF0030.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM UCF0030
  INTO TABLE IT_UCF0030.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UCF0030
*  INTO TABLE @DATA(IT_UCF00302).
*--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_UCF0030 INDEX 1 INTO DATA(WA_UCF00302).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_UCF0030 ASSIGNING <UCF0030>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UCF0030>-METHTYPE = 1.
<UCF0030>-COMPONENT = 1.
<UCF0030>-SEQNR = 1.
<UCF0030>-ROLLNAME = 1.
<UCF0030>-ICON = 1.

ENDLOOP.

LOOP AT IT_UCF0030 INTO WA_UCF0030.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UCF0030-DESELECTABLE, sy-vline,
  WA_UCF0030-SELECT_ROLLNAME, sy-vline,
  WA_UCF0030-TYPE_DEFINABLE, sy-vline,
  WA_UCF0030-TYPE_ROLLNAME, sy-vline,
  WA_UCF0030-TYPE_FRAME, sy-vline,
  WA_UCF0030-FIELDS_CHOOSABLE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UCF0030 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_UCF0030 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_UCF0030 INTO WA_UCF0030.


*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_UCF0030_STR, 
METHTYPE TYPE STRING,
COMPONENT TYPE STRING,
SEQNR TYPE STRING,
ROLLNAME TYPE STRING,
ICON TYPE STRING,
DESELECTABLE TYPE STRING,
SELECT_ROLLNAME TYPE STRING,
TYPE_DEFINABLE TYPE STRING,
TYPE_ROLLNAME TYPE STRING,
TYPE_FRAME TYPE STRING,
FIELDS_CHOOSABLE TYPE STRING,
FIELDS_ROLLNAME TYPE STRING,
COMPGROUP TYPE STRING,
COMPTYPE TYPE STRING,
DEBIT_CREDIT TYPE STRING,
TABTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UCF0030_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_UCF0030_STR-METHTYPE sy-vline 
WA_UCF0030_STR-COMPONENT sy-vline 
WA_UCF0030_STR-SEQNR sy-vline 
WA_UCF0030_STR-ROLLNAME sy-vline 
WA_UCF0030_STR-ICON sy-vline 
WA_UCF0030_STR-DESELECTABLE sy-vline 
WA_UCF0030_STR-SELECT_ROLLNAME sy-vline 
WA_UCF0030_STR-TYPE_DEFINABLE sy-vline 
WA_UCF0030_STR-TYPE_ROLLNAME sy-vline 
WA_UCF0030_STR-TYPE_FRAME sy-vline 
WA_UCF0030_STR-FIELDS_CHOOSABLE sy-vline 
WA_UCF0030_STR-FIELDS_ROLLNAME sy-vline 
WA_UCF0030_STR-COMPGROUP sy-vline 
WA_UCF0030_STR-COMPTYPE sy-vline 
WA_UCF0030_STR-DEBIT_CREDIT sy-vline 
WA_UCF0030_STR-TABTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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