ABAP Select data from SAP table /CFG/S_CONFIGITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /CFG/S_CONFIGITEM
*  INTO TABLE @DATA(IT_/CFG/S_CONFIGITEM2).
*--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_/CFG/S_CONFIGITEM INDEX 1 INTO DATA(WA_/CFG/S_CONFIGITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</CFG/S_CONFIGITEM>-CONFIG_ID = 1.
</CFG/S_CONFIGITEM>-PROJ_ID = 1.
</CFG/S_CONFIGITEM>-SHORT_DESC = 1.
</CFG/S_CONFIGITEM>-LONG_DESC = 1.
</CFG/S_CONFIGITEM>-DETAIL_DESC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/CFG/S_CONFIGITEM-MANDATORY, sy-vline,
  WA_/CFG/S_CONFIGITEM-MANDATORY_ID, sy-vline,
  WA_/CFG/S_CONFIGITEM-CATEGORY, sy-vline,
  WA_/CFG/S_CONFIGITEM-CATEGORY_ID, sy-vline,
  WA_/CFG/S_CONFIGITEM-TYPE, sy-vline,
  WA_/CFG/S_CONFIGITEM-TYPE_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/CFG/S_CONFIGITEM 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_/CFG/S_CONFIGITEM 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_/CFG/S_CONFIGITEM INTO WA_/CFG/S_CONFIGITEM.


*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 TSTLC, internal->external for field CHANGEDON
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/CFG/S_CONFIGITEM-CHANGEDON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CFG/S_CONFIGITEM-CHANGEDON.
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_/CFG/S_CONFIGITEM_STR, 
CONFIG_ID TYPE STRING,
PROJ_ID TYPE STRING,
SHORT_DESC TYPE STRING,
LONG_DESC TYPE STRING,
DETAIL_DESC TYPE STRING,
MANDATORY TYPE STRING,
MANDATORY_ID TYPE STRING,
CATEGORY TYPE STRING,
CATEGORY_ID TYPE STRING,
TYPE TYPE STRING,
TYPE_ID TYPE STRING,
ITEM_SEQUENCE TYPE STRING,
CHANGEDBY_NAME TYPE STRING,
CHANGEDBY TYPE STRING,
CHANGEDON TYPE STRING,
STATUS TYPE STRING,
STATUS_ID TYPE STRING,
COUNTRY_INDICATOR TYPE STRING,
COUNTRY_INDICATOR_ID TYPE STRING,
TRANSINDICATOR TYPE STRING,
TRANSINDICATOR_ID TYPE STRING,
TILE_ID TYPE STRING,
SEMANTIC_OBJECT TYPE STRING,
SEMANTIC_ACTION TYPE STRING,
CUST_OBJ_NAME TYPE STRING,
CUST_OBJ_TYPE TYPE STRING,
TCODE TYPE STRING,
ACT_ID TYPE STRING,
ACT_TYPE_ID TYPE STRING,
ACT_TYPE TYPE STRING,
DOC_URL TYPE STRING,
PROCESSOR TYPE STRING,
PROCESSOR_ID TYPE STRING,
REDO_FLAG TYPE STRING,
READ_ONLY_FLG TYPE STRING,
MR_FLAG TYPE STRING,
ENABLE_NAVIGATION TYPE STRING,
ITEM_EXTERNAL_ID TYPE STRING,
DYN_MRR_FLG TYPE STRING,
DYN_MRR_STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/CFG/S_CONFIGITEM_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_/CFG/S_CONFIGITEM_STR-CONFIG_ID sy-vline 
WA_/CFG/S_CONFIGITEM_STR-PROJ_ID sy-vline 
WA_/CFG/S_CONFIGITEM_STR-SHORT_DESC sy-vline 
WA_/CFG/S_CONFIGITEM_STR-LONG_DESC sy-vline 
WA_/CFG/S_CONFIGITEM_STR-DETAIL_DESC sy-vline 
WA_/CFG/S_CONFIGITEM_STR-MANDATORY sy-vline 
WA_/CFG/S_CONFIGITEM_STR-MANDATORY_ID sy-vline 
WA_/CFG/S_CONFIGITEM_STR-CATEGORY sy-vline 
WA_/CFG/S_CONFIGITEM_STR-CATEGORY_ID sy-vline 
WA_/CFG/S_CONFIGITEM_STR-TYPE sy-vline 
WA_/CFG/S_CONFIGITEM_STR-TYPE_ID sy-vline 
WA_/CFG/S_CONFIGITEM_STR-ITEM_SEQUENCE sy-vline 
WA_/CFG/S_CONFIGITEM_STR-CHANGEDBY_NAME sy-vline 
WA_/CFG/S_CONFIGITEM_STR-CHANGEDBY sy-vline 
WA_/CFG/S_CONFIGITEM_STR-CHANGEDON sy-vline 
WA_/CFG/S_CONFIGITEM_STR-STATUS sy-vline 
WA_/CFG/S_CONFIGITEM_STR-STATUS_ID sy-vline 
WA_/CFG/S_CONFIGITEM_STR-COUNTRY_INDICATOR sy-vline 
WA_/CFG/S_CONFIGITEM_STR-COUNTRY_INDICATOR_ID sy-vline 
WA_/CFG/S_CONFIGITEM_STR-TRANSINDICATOR sy-vline 
WA_/CFG/S_CONFIGITEM_STR-TRANSINDICATOR_ID sy-vline 
WA_/CFG/S_CONFIGITEM_STR-TILE_ID sy-vline 
WA_/CFG/S_CONFIGITEM_STR-SEMANTIC_OBJECT sy-vline 
WA_/CFG/S_CONFIGITEM_STR-SEMANTIC_ACTION sy-vline 
WA_/CFG/S_CONFIGITEM_STR-CUST_OBJ_NAME sy-vline 
WA_/CFG/S_CONFIGITEM_STR-CUST_OBJ_TYPE sy-vline 
WA_/CFG/S_CONFIGITEM_STR-TCODE sy-vline 
WA_/CFG/S_CONFIGITEM_STR-ACT_ID sy-vline 
WA_/CFG/S_CONFIGITEM_STR-ACT_TYPE_ID sy-vline 
WA_/CFG/S_CONFIGITEM_STR-ACT_TYPE sy-vline 
WA_/CFG/S_CONFIGITEM_STR-DOC_URL sy-vline 
WA_/CFG/S_CONFIGITEM_STR-PROCESSOR sy-vline 
WA_/CFG/S_CONFIGITEM_STR-PROCESSOR_ID sy-vline 
WA_/CFG/S_CONFIGITEM_STR-REDO_FLAG sy-vline 
WA_/CFG/S_CONFIGITEM_STR-READ_ONLY_FLG sy-vline 
WA_/CFG/S_CONFIGITEM_STR-MR_FLAG sy-vline 
WA_/CFG/S_CONFIGITEM_STR-ENABLE_NAVIGATION sy-vline 
WA_/CFG/S_CONFIGITEM_STR-ITEM_EXTERNAL_ID sy-vline 
WA_/CFG/S_CONFIGITEM_STR-DYN_MRR_FLG sy-vline 
WA_/CFG/S_CONFIGITEM_STR-DYN_MRR_STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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