ABAP Select data from SAP table ICLX_I_PARTICIPANT_S_IN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICLX_I_PARTICIPANT_S_IN
*  INTO TABLE @DATA(IT_ICLX_I_PARTICIPANT_S_IN2).
*--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_ICLX_I_PARTICIPANT_S_IN INDEX 1 INTO DATA(WA_ICLX_I_PARTICIPANT_S_IN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICLX_I_PARTICIPANT_S_IN>-UPDATE_TYPE = 1.
<ICLX_I_PARTICIPANT_S_IN>-PARTICIPANT_GUID = 1.
<ICLX_I_PARTICIPANT_S_IN>-PARTICIPANT_NO = 1.
<ICLX_I_PARTICIPANT_S_IN>-ROLE = 1.
<ICLX_I_PARTICIPANT_S_IN>-TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICLX_I_PARTICIPANT_S_IN-TITLE, sy-vline,
  WA_ICLX_I_PARTICIPANT_S_IN-NAME_LAST, sy-vline,
  WA_ICLX_I_PARTICIPANT_S_IN-NAME_FIRST, sy-vline,
  WA_ICLX_I_PARTICIPANT_S_IN-ORG_NAME_LAST, sy-vline,
  WA_ICLX_I_PARTICIPANT_S_IN-ORG_NAME_FIRST, sy-vline,
  WA_ICLX_I_PARTICIPANT_S_IN-BIRTHDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICLX_I_PARTICIPANT_S_IN 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_ICLX_I_PARTICIPANT_S_IN 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_ICLX_I_PARTICIPANT_S_IN INTO WA_ICLX_I_PARTICIPANT_S_IN.


*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 ALPHA, internal->external for field PARTICIPANT_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICLX_I_PARTICIPANT_S_IN-PARTICIPANT_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICLX_I_PARTICIPANT_S_IN-PARTICIPANT_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ICLX_I_PARTICIPANT_S_IN-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICLX_I_PARTICIPANT_S_IN-LANGUAGE.
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_ICLX_I_PARTICIPANT_S_IN_STR, 
UPDATE_TYPE TYPE STRING,
PARTICIPANT_GUID TYPE STRING,
PARTICIPANT_NO TYPE STRING,
ROLE TYPE STRING,
TYPE TYPE STRING,
TITLE TYPE STRING,
NAME_LAST TYPE STRING,
NAME_FIRST TYPE STRING,
ORG_NAME_LAST TYPE STRING,
ORG_NAME_FIRST TYPE STRING,
BIRTHDT TYPE STRING,
SEX TYPE STRING,
MARST TYPE STRING,
STREET TYPE STRING,
HOUSE_NUM1 TYPE STRING,
POST_CODE1 TYPE STRING,
CITY1 TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
TEL_NUMBER TYPE STRING,
TEL_EXTENS TYPE STRING,
FAX_NUMBER TYPE STRING,
FAX_EXTENS TYPE STRING,
SMTP_ADDR TYPE STRING,
FEIN TYPE STRING,
SSN TYPE STRING,
LANGUAGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICLX_I_PARTICIPANT_S_IN_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_ICLX_I_PARTICIPANT_S_IN_STR-UPDATE_TYPE sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-PARTICIPANT_GUID sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-PARTICIPANT_NO sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-ROLE sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-TYPE sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-TITLE sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-NAME_LAST sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-NAME_FIRST sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-ORG_NAME_LAST sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-ORG_NAME_FIRST sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-BIRTHDT sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-SEX sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-MARST sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-STREET sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-HOUSE_NUM1 sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-POST_CODE1 sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-CITY1 sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-COUNTRY sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-REGION sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-TEL_NUMBER sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-TEL_EXTENS sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-FAX_NUMBER sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-FAX_EXTENS sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-SMTP_ADDR sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-FEIN sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-SSN sy-vline 
WA_ICLX_I_PARTICIPANT_S_IN_STR-LANGUAGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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