ABAP Select data from SAP table ICL_GUI_DRI1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ICL_GUI_DRI1 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 ICL_GUI_DRI1. 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 ICL_GUI_DRI1 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_ICL_GUI_DRI1 TYPE STANDARD TABLE OF ICL_GUI_DRI1,
      WA_ICL_GUI_DRI1 TYPE ICL_GUI_DRI1,
      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: <ICL_GUI_DRI1> TYPE ICL_GUI_DRI1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ICL_GUI_DRI1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ICL_GUI_DRI1
  INTO TABLE IT_ICL_GUI_DRI1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICL_GUI_DRI1
*  INTO TABLE @DATA(IT_ICL_GUI_DRI12).
*--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_ICL_GUI_DRI1 INDEX 1 INTO DATA(WA_ICL_GUI_DRI12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ICL_GUI_DRI1 ASSIGNING <ICL_GUI_DRI1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICL_GUI_DRI1>-PARTICIPANT = 1.
<ICL_GUI_DRI1>-NAME_LAST = 1.
<ICL_GUI_DRI1>-NAME_FIRST = 1.
<ICL_GUI_DRI1>-STREET = 1.
<ICL_GUI_DRI1>-HOUSE_NUM1 = 1.

ENDLOOP.

LOOP AT IT_ICL_GUI_DRI1 INTO WA_ICL_GUI_DRI1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICL_GUI_DRI1-POST_CODE1, sy-vline,
  WA_ICL_GUI_DRI1-CITY1, sy-vline,
  WA_ICL_GUI_DRI1-COUNTRY, sy-vline,
  WA_ICL_GUI_DRI1-REGION, sy-vline,
  WA_ICL_GUI_DRI1-MAILADDR, sy-vline,
  WA_ICL_GUI_DRI1-PHONEADDR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICL_GUI_DRI1 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_ICL_GUI_DRI1 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_ICL_GUI_DRI1 INTO WA_ICL_GUI_DRI1.


*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
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICL_GUI_DRI1-PARTICIPANT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_GUI_DRI1-PARTICIPANT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MAILADDR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICL_GUI_DRI1-MAILADDR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_GUI_DRI1-MAILADDR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PHONEADDR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICL_GUI_DRI1-PHONEADDR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_GUI_DRI1-PHONEADDR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INSCOMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICL_GUI_DRI1-INSCOMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_GUI_DRI1-INSCOMP.
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_ICL_GUI_DRI1_STR, 
PARTICIPANT TYPE STRING,
NAME_LAST TYPE STRING,
NAME_FIRST TYPE STRING,
STREET TYPE STRING,
HOUSE_NUM1 TYPE STRING,
POST_CODE1 TYPE STRING,
CITY1 TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
MAILADDR TYPE STRING,
PHONEADDR TYPE STRING,
PHONEID TYPE STRING,
REFERENCE TYPE STRING,
RELTYPE TYPE STRING,
TEXT01 TYPE STRING,
FILE_REQUESTED TYPE STRING,
DESCRIP TYPE STRING,
ASSIGN_GUID TYPE STRING,
AGE TYPE STRING,
ISSUEDATE TYPE STRING,
BIRTHDATE TYPE STRING,
XNDRV TYPE STRING,
XPOLH TYPE STRING,
INSCOMP TYPE STRING,
INSCOMPDESCRIP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICL_GUI_DRI1_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_ICL_GUI_DRI1_STR-PARTICIPANT sy-vline 
WA_ICL_GUI_DRI1_STR-NAME_LAST sy-vline 
WA_ICL_GUI_DRI1_STR-NAME_FIRST sy-vline 
WA_ICL_GUI_DRI1_STR-STREET sy-vline 
WA_ICL_GUI_DRI1_STR-HOUSE_NUM1 sy-vline 
WA_ICL_GUI_DRI1_STR-POST_CODE1 sy-vline 
WA_ICL_GUI_DRI1_STR-CITY1 sy-vline 
WA_ICL_GUI_DRI1_STR-COUNTRY sy-vline 
WA_ICL_GUI_DRI1_STR-REGION sy-vline 
WA_ICL_GUI_DRI1_STR-MAILADDR sy-vline 
WA_ICL_GUI_DRI1_STR-PHONEADDR sy-vline 
WA_ICL_GUI_DRI1_STR-PHONEID sy-vline 
WA_ICL_GUI_DRI1_STR-REFERENCE sy-vline 
WA_ICL_GUI_DRI1_STR-RELTYPE sy-vline 
WA_ICL_GUI_DRI1_STR-TEXT01 sy-vline 
WA_ICL_GUI_DRI1_STR-FILE_REQUESTED sy-vline 
WA_ICL_GUI_DRI1_STR-DESCRIP sy-vline 
WA_ICL_GUI_DRI1_STR-ASSIGN_GUID sy-vline 
WA_ICL_GUI_DRI1_STR-AGE sy-vline 
WA_ICL_GUI_DRI1_STR-ISSUEDATE sy-vline 
WA_ICL_GUI_DRI1_STR-BIRTHDATE sy-vline 
WA_ICL_GUI_DRI1_STR-XNDRV sy-vline 
WA_ICL_GUI_DRI1_STR-XPOLH sy-vline 
WA_ICL_GUI_DRI1_STR-INSCOMP sy-vline 
WA_ICL_GUI_DRI1_STR-INSCOMPDESCRIP sy-vline      INTO ld_text SEPARATED BY SPACE.

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