ABAP Select data from SAP table ITCFH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITCFH
*  INTO TABLE @DATA(IT_ITCFH2).
*--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_ITCFH INDEX 1 INTO DATA(WA_ITCFH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITCFH>-TDFAMILY = 1.
<ITCFH>-TDHEIGHT = 1.
<ITCFH>-TDBOLD = 1.
<ITCFH>-TDITALIC = 1.
<ITCFH>-TDCAPS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITCFH-TDUNDERLIN, sy-vline,
  WA_ITCFH-TDFONTID, sy-vline,
  WA_ITCFH-TDPROPORT, sy-vline,
  WA_ITCFH-CPCODEPAGE, sy-vline,
  WA_ITCFH-TDULPOSS, sy-vline,
  WA_ITCFH-TDULTHICKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITCFH 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_ITCFH 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_ITCFH INTO WA_ITCFH.


*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_ITCFH_STR, 
TDFAMILY TYPE STRING,
TDHEIGHT TYPE STRING,
TDBOLD TYPE STRING,
TDITALIC TYPE STRING,
TDCAPS TYPE STRING,
TDUNDERLIN TYPE STRING,
TDFONTID TYPE STRING,
TDPROPORT TYPE STRING,
CPCODEPAGE TYPE STRING,
TDULPOSS TYPE STRING,
TDULTHICKS TYPE STRING,
TDSPACEWS TYPE STRING,
TDHYPHENWS TYPE STRING,
TDNUMSIGWS TYPE STRING,
CPVERSION TYPE STRING,
PVERS TYPE STRING,
TDPCPVERS TYPE STRING,
PRINTERCP TYPE STRING,
TDPOSTENC TYPE STRING,
TDSCALEFT TYPE STRING,
TDDUMMY TYPE STRING,
TDPRFTPROP TYPE STRING,
TDSOFTFONT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITCFH_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_ITCFH_STR-TDFAMILY sy-vline 
WA_ITCFH_STR-TDHEIGHT sy-vline 
WA_ITCFH_STR-TDBOLD sy-vline 
WA_ITCFH_STR-TDITALIC sy-vline 
WA_ITCFH_STR-TDCAPS sy-vline 
WA_ITCFH_STR-TDUNDERLIN sy-vline 
WA_ITCFH_STR-TDFONTID sy-vline 
WA_ITCFH_STR-TDPROPORT sy-vline 
WA_ITCFH_STR-CPCODEPAGE sy-vline 
WA_ITCFH_STR-TDULPOSS sy-vline 
WA_ITCFH_STR-TDULTHICKS sy-vline 
WA_ITCFH_STR-TDSPACEWS sy-vline 
WA_ITCFH_STR-TDHYPHENWS sy-vline 
WA_ITCFH_STR-TDNUMSIGWS sy-vline 
WA_ITCFH_STR-CPVERSION sy-vline 
WA_ITCFH_STR-PVERS sy-vline 
WA_ITCFH_STR-TDPCPVERS sy-vline 
WA_ITCFH_STR-PRINTERCP sy-vline 
WA_ITCFH_STR-TDPOSTENC sy-vline 
WA_ITCFH_STR-TDSCALEFT sy-vline 
WA_ITCFH_STR-TDDUMMY sy-vline 
WA_ITCFH_STR-TDPRFTPROP sy-vline 
WA_ITCFH_STR-TDSOFTFONT sy-vline      INTO ld_text SEPARATED BY SPACE.

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