ABAP Select data from SAP table ITCFG into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITCFG
*  INTO TABLE @DATA(IT_ITCFG2).
*--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_ITCFG INDEX 1 INTO DATA(WA_ITCFG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITCFG>-TDXFAMILY = 1.
<ITCFG>-TDXHEIGHT = 1.
<ITCFG>-TDXBOLD = 1.
<ITCFG>-TDXITALIC = 1.
<ITCFG>-TDFAMILY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITCFG-TDHEIGHT, sy-vline,
  WA_ITCFG-TDBOLD, sy-vline,
  WA_ITCFG-TDITALIC, sy-vline,
  WA_ITCFG-TDCWIDTHS, sy-vline,
  WA_ITCFG-TDPROPORT, sy-vline,
  WA_ITCFG-TDPPRINTID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITCFG 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_ITCFG 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_ITCFG INTO WA_ITCFG.


*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_ITCFG_STR, 
TDXFAMILY TYPE STRING,
TDXHEIGHT TYPE STRING,
TDXBOLD TYPE STRING,
TDXITALIC TYPE STRING,
TDFAMILY TYPE STRING,
TDHEIGHT TYPE STRING,
TDBOLD TYPE STRING,
TDITALIC TYPE STRING,
TDCWIDTHS TYPE STRING,
TDPROPORT TYPE STRING,
TDPPRINTID TYPE STRING,
TDLPRINTID TYPE STRING,
TDCODEPAGE TYPE STRING,
TDDUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITCFG_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_ITCFG_STR-TDXFAMILY sy-vline 
WA_ITCFG_STR-TDXHEIGHT sy-vline 
WA_ITCFG_STR-TDXBOLD sy-vline 
WA_ITCFG_STR-TDXITALIC sy-vline 
WA_ITCFG_STR-TDFAMILY sy-vline 
WA_ITCFG_STR-TDHEIGHT sy-vline 
WA_ITCFG_STR-TDBOLD sy-vline 
WA_ITCFG_STR-TDITALIC sy-vline 
WA_ITCFG_STR-TDCWIDTHS sy-vline 
WA_ITCFG_STR-TDPROPORT sy-vline 
WA_ITCFG_STR-TDPPRINTID sy-vline 
WA_ITCFG_STR-TDLPRINTID sy-vline 
WA_ITCFG_STR-TDCODEPAGE sy-vline 
WA_ITCFG_STR-TDDUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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