ABAP Select data from SAP table INFCFGTHRE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM INFCFGTHRE
*  INTO TABLE @DATA(IT_INFCFGTHRE2).
*--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_INFCFGTHRE INDEX 1 INTO DATA(WA_INFCFGTHRE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<INFCFGTHRE>-SAPRELEASE = 1.
<INFCFGTHRE>-INFRELEASE = 1.
<INFCFGTHRE>-OSTYPE = 1.
<INFCFGTHRE>-OSRELEASE = 1.
<INFCFGTHRE>-MODTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_INFCFGTHRE-MODUSER, sy-vline,
  WA_INFCFGTHRE-PARAM, sy-vline,
  WA_INFCFGTHRE-CKDETAILNO, sy-vline,
  WA_INFCFGTHRE-PERFORMANC, sy-vline,
  WA_INFCFGTHRE-OCLASS, sy-vline,
  WA_INFCFGTHRE-SCLASS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_INFCFGTHRE 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_INFCFGTHRE 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_INFCFGTHRE INTO WA_INFCFGTHRE.


*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_INFCFGTHRE_STR, 
SAPRELEASE TYPE STRING,
INFRELEASE TYPE STRING,
OSTYPE TYPE STRING,
OSRELEASE TYPE STRING,
MODTIME TYPE STRING,
MODUSER TYPE STRING,
PARAM TYPE STRING,
CKDETAILNO TYPE STRING,
PERFORMANC TYPE STRING,
OCLASS TYPE STRING,
SCLASS TYPE STRING,
ACTIV TYPE STRING,
SEVERITY TYPE STRING,
CHECKOP TYPE STRING,
CHECKVAL TYPE STRING,
BYTEUNIT TYPE STRING,
CHCKMODIFY TYPE STRING,
MODCOMMENT TYPE STRING,
REACTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_INFCFGTHRE_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_INFCFGTHRE_STR-SAPRELEASE sy-vline 
WA_INFCFGTHRE_STR-INFRELEASE sy-vline 
WA_INFCFGTHRE_STR-OSTYPE sy-vline 
WA_INFCFGTHRE_STR-OSRELEASE sy-vline 
WA_INFCFGTHRE_STR-MODTIME sy-vline 
WA_INFCFGTHRE_STR-MODUSER sy-vline 
WA_INFCFGTHRE_STR-PARAM sy-vline 
WA_INFCFGTHRE_STR-CKDETAILNO sy-vline 
WA_INFCFGTHRE_STR-PERFORMANC sy-vline 
WA_INFCFGTHRE_STR-OCLASS sy-vline 
WA_INFCFGTHRE_STR-SCLASS sy-vline 
WA_INFCFGTHRE_STR-ACTIV sy-vline 
WA_INFCFGTHRE_STR-SEVERITY sy-vline 
WA_INFCFGTHRE_STR-CHECKOP sy-vline 
WA_INFCFGTHRE_STR-CHECKVAL sy-vline 
WA_INFCFGTHRE_STR-BYTEUNIT sy-vline 
WA_INFCFGTHRE_STR-CHCKMODIFY sy-vline 
WA_INFCFGTHRE_STR-MODCOMMENT sy-vline 
WA_INFCFGTHRE_STR-REACTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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