ABAP Select data from SAP table ICL_DRGITEM_S_AL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ICL_DRGITEM_S_AL 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_DRGITEM_S_AL. 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_DRGITEM_S_AL 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_DRGITEM_S_AL TYPE STANDARD TABLE OF ICL_DRGITEM_S_AL,
      WA_ICL_DRGITEM_S_AL TYPE ICL_DRGITEM_S_AL,
      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_DRGITEM_S_AL> TYPE ICL_DRGITEM_S_AL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICL_DRGITEM_S_AL
*  INTO TABLE @DATA(IT_ICL_DRGITEM_S_AL2).
*--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_DRGITEM_S_AL INDEX 1 INTO DATA(WA_ICL_DRGITEM_S_AL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICL_DRGITEM_S_AL>-CLIENT = 1.
<ICL_DRGITEM_S_AL>-ACTIVE = 1.
<ICL_DRGITEM_S_AL>-CLAIM = 1.
<ICL_DRGITEM_S_AL>-SUBCLAIM = 1.
<ICL_DRGITEM_S_AL>-ITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICL_DRGITEM_S_AL-CHANGETIME, sy-vline,
  WA_ICL_DRGITEM_S_AL-CHANGEDBY, sy-vline,
  WA_ICL_DRGITEM_S_AL-DELETED, sy-vline,
  WA_ICL_DRGITEM_S_AL-COVTYPE, sy-vline,
  WA_ICL_DRGITEM_S_AL-BENTYPE, sy-vline,
  WA_ICL_DRGITEM_S_AL-RCOVTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICL_DRGITEM_S_AL 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_DRGITEM_S_AL 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_DRGITEM_S_AL INTO WA_ICL_DRGITEM_S_AL.


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

*Conversion exit TSTAM, internal->external for field CHANGETIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_ICL_DRGITEM_S_AL-CHANGETIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_DRGITEM_S_AL-CHANGETIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DIAID, internal->external for field DIAGID
CALL FUNCTION 'CONVERSION_EXIT_DIAID_OUTPUT'
  EXPORTING
    input =                      WA_ICL_DRGITEM_S_AL-DIAGID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_DRGITEM_S_AL-DIAGID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field EVQUANUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ICL_DRGITEM_S_AL-EVQUANUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_DRGITEM_S_AL-EVQUANUNIT.
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_DRGITEM_S_AL_STR, 
CLIENT TYPE STRING,
ACTIVE TYPE STRING,
CLAIM TYPE STRING,
SUBCLAIM TYPE STRING,
ITEM TYPE STRING,
CHANGETIME TYPE STRING,
CHANGEDBY TYPE STRING,
DELETED TYPE STRING,
COVTYPE TYPE STRING,
BENTYPE TYPE STRING,
RCOVTYPE TYPE STRING,
XWAITPERIOD TYPE STRING,
COVERAGE TYPE STRING,
SCPOSID_INT TYPE STRING,
SERVCAT TYPE STRING,
SCPOSID_EXT TYPE STRING,
STATUS TYPE STRING,
REJREASON TYPE STRING,
MODIFIED TYPE STRING,
PROCURED TYPE STRING,
CALCULATED TYPE STRING,
CATAID TYPE STRING,
DIAGID TYPE STRING,
SEVERITY_CODE TYPE STRING,
NOTE TYPE STRING,
REMUN_TYPE_AM TYPE STRING,
AMOUNT TYPE STRING,
REMUN_TYPE_ADDAM TYPE STRING,
ADDITIONALAMOUNT TYPE STRING,
CURR TYPE STRING,
AMOUNTDAYS TYPE STRING,
ITEM_REF TYPE STRING,
PROCUREMENT TYPE STRING,
EVQUANTITY TYPE STRING,
EVQUANUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICL_DRGITEM_S_AL_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_DRGITEM_S_AL_STR-CLIENT sy-vline 
WA_ICL_DRGITEM_S_AL_STR-ACTIVE sy-vline 
WA_ICL_DRGITEM_S_AL_STR-CLAIM sy-vline 
WA_ICL_DRGITEM_S_AL_STR-SUBCLAIM sy-vline 
WA_ICL_DRGITEM_S_AL_STR-ITEM sy-vline 
WA_ICL_DRGITEM_S_AL_STR-CHANGETIME sy-vline 
WA_ICL_DRGITEM_S_AL_STR-CHANGEDBY sy-vline 
WA_ICL_DRGITEM_S_AL_STR-DELETED sy-vline 
WA_ICL_DRGITEM_S_AL_STR-COVTYPE sy-vline 
WA_ICL_DRGITEM_S_AL_STR-BENTYPE sy-vline 
WA_ICL_DRGITEM_S_AL_STR-RCOVTYPE sy-vline 
WA_ICL_DRGITEM_S_AL_STR-XWAITPERIOD sy-vline 
WA_ICL_DRGITEM_S_AL_STR-COVERAGE sy-vline 
WA_ICL_DRGITEM_S_AL_STR-SCPOSID_INT sy-vline 
WA_ICL_DRGITEM_S_AL_STR-SERVCAT sy-vline 
WA_ICL_DRGITEM_S_AL_STR-SCPOSID_EXT sy-vline 
WA_ICL_DRGITEM_S_AL_STR-STATUS sy-vline 
WA_ICL_DRGITEM_S_AL_STR-REJREASON sy-vline 
WA_ICL_DRGITEM_S_AL_STR-MODIFIED sy-vline 
WA_ICL_DRGITEM_S_AL_STR-PROCURED sy-vline 
WA_ICL_DRGITEM_S_AL_STR-CALCULATED sy-vline 
WA_ICL_DRGITEM_S_AL_STR-CATAID sy-vline 
WA_ICL_DRGITEM_S_AL_STR-DIAGID sy-vline 
WA_ICL_DRGITEM_S_AL_STR-SEVERITY_CODE sy-vline 
WA_ICL_DRGITEM_S_AL_STR-NOTE sy-vline 
WA_ICL_DRGITEM_S_AL_STR-REMUN_TYPE_AM sy-vline 
WA_ICL_DRGITEM_S_AL_STR-AMOUNT sy-vline 
WA_ICL_DRGITEM_S_AL_STR-REMUN_TYPE_ADDAM sy-vline 
WA_ICL_DRGITEM_S_AL_STR-ADDITIONALAMOUNT sy-vline 
WA_ICL_DRGITEM_S_AL_STR-CURR sy-vline 
WA_ICL_DRGITEM_S_AL_STR-AMOUNTDAYS sy-vline 
WA_ICL_DRGITEM_S_AL_STR-ITEM_REF sy-vline 
WA_ICL_DRGITEM_S_AL_STR-PROCUREMENT sy-vline 
WA_ICL_DRGITEM_S_AL_STR-EVQUANTITY sy-vline 
WA_ICL_DRGITEM_S_AL_STR-EVQUANUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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