ABAP Select data from SAP table ICUSTCMPLITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICUSTCMPLITM
*  INTO TABLE @DATA(IT_ICUSTCMPLITM2).
*--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_ICUSTCMPLITM INDEX 1 INTO DATA(WA_ICUSTCMPLITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICUSTCMPLITM>-MANDT = 1.
<ICUSTCMPLITM>-SERVICEOBJECTTYPE = 1.
<ICUSTCMPLITM>-CUSTOMERCOMPLAINT = 1.
<ICUSTCMPLITM>-CUSTOMERCOMPLAINTITEM = 1.
<ICUSTCMPLITM>-CUSTOMERCOMPLAINTUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICUSTCMPLITM-CUSTCMPLDESCRIPTION, sy-vline,
  WA_ICUSTCMPLITM-CUSTCMPLTYPE, sy-vline,
  WA_ICUSTCMPLITM-CUSTOMERCOMPLAINTITEMUUID, sy-vline,
  WA_ICUSTCMPLITM-TEXTOBJECTKEY, sy-vline,
  WA_ICUSTCMPLITM-SERVICEDOCUMENTITEMOBJECTTYPE, sy-vline,
  WA_ICUSTCMPLITM-CUSTCMPLITEMDESCRIPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICUSTCMPLITM 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_ICUSTCMPLITM 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_ICUSTCMPLITM INTO WA_ICUSTCMPLITM.


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

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

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

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

*Conversion exit MATN1, internal->external for field PRODUCTID
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ICUSTCMPLITM-PRODUCTID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICUSTCMPLITM-PRODUCTID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CUSTCMPLITEMQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ICUSTCMPLITM-CUSTCMPLITEMQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICUSTCMPLITM-CUSTCMPLITEMQUANTITYUNIT.
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_ICUSTCMPLITM_STR, 
MANDT TYPE STRING,
SERVICEOBJECTTYPE TYPE STRING,
CUSTOMERCOMPLAINT TYPE STRING,
CUSTOMERCOMPLAINTITEM TYPE STRING,
CUSTOMERCOMPLAINTUUID TYPE STRING,
CUSTCMPLDESCRIPTION TYPE STRING,
CUSTCMPLTYPE TYPE STRING,
CUSTOMERCOMPLAINTITEMUUID TYPE STRING,
TEXTOBJECTKEY TYPE STRING,
SERVICEDOCUMENTITEMOBJECTTYPE TYPE STRING,
CUSTCMPLITEMDESCRIPTION TYPE STRING,
SOLDTOPARTY TYPE STRING,
RESPONSIBLEEMPLOYEE TYPE STRING,
CONTACTPERSON TYPE STRING,
CUSTOMERCOMPLAINTITEMSTATUS TYPE STRING,
CUSTCMPLITEMHASERROR TYPE STRING,
CUSTCMPLITEMISOPEN TYPE STRING,
CUSTCMPLITEMCATEGORY TYPE STRING,
CUSTCMPLITEMCREATIONDATETIME TYPE STRING,
CUSTCMPLITEMCHANGEDDATETIME TYPE STRING,
CUSTCMPLITEMCREATEDBYUSER TYPE STRING,
CUSTCMPLITEMCHANGEDBYUSER TYPE STRING,
CUSTCMPLITEMPRODUCT TYPE STRING,
PRODUCTID TYPE STRING,
CUSTCMPLITEMQUANTITY TYPE STRING,
CUSTCMPLITEMQUANTITYUNIT TYPE STRING,
CUSTCMPLISSUECAUSEDBY TYPE STRING,
CUSTCMPLIMPACT TYPE STRING,
CUSTCMPLREASON TYPE STRING,
CUSTCMPLITMISCOMPLETE TYPE STRING,
CUSTCMPLITMISENTITLED TYPE STRING,
CUSTCMPLITMISACCEPTED TYPE STRING,
CUSTCMPLITMISFREEOFCHARGE TYPE STRING,
CUSTCMPLITMISGOODWILL TYPE STRING,
PRODUCTNAME TYPE STRING,
UNITOFMEASURELONGNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICUSTCMPLITM_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_ICUSTCMPLITM_STR-MANDT sy-vline 
WA_ICUSTCMPLITM_STR-SERVICEOBJECTTYPE sy-vline 
WA_ICUSTCMPLITM_STR-CUSTOMERCOMPLAINT sy-vline 
WA_ICUSTCMPLITM_STR-CUSTOMERCOMPLAINTITEM sy-vline 
WA_ICUSTCMPLITM_STR-CUSTOMERCOMPLAINTUUID sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLDESCRIPTION sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLTYPE sy-vline 
WA_ICUSTCMPLITM_STR-CUSTOMERCOMPLAINTITEMUUID sy-vline 
WA_ICUSTCMPLITM_STR-TEXTOBJECTKEY sy-vline 
WA_ICUSTCMPLITM_STR-SERVICEDOCUMENTITEMOBJECTTYPE sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITEMDESCRIPTION sy-vline 
WA_ICUSTCMPLITM_STR-SOLDTOPARTY sy-vline 
WA_ICUSTCMPLITM_STR-RESPONSIBLEEMPLOYEE sy-vline 
WA_ICUSTCMPLITM_STR-CONTACTPERSON sy-vline 
WA_ICUSTCMPLITM_STR-CUSTOMERCOMPLAINTITEMSTATUS sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITEMHASERROR sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITEMISOPEN sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITEMCATEGORY sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITEMCREATIONDATETIME sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITEMCHANGEDDATETIME sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITEMCREATEDBYUSER sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITEMCHANGEDBYUSER sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITEMPRODUCT sy-vline 
WA_ICUSTCMPLITM_STR-PRODUCTID sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITEMQUANTITY sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITEMQUANTITYUNIT sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLISSUECAUSEDBY sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLIMPACT sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLREASON sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITMISCOMPLETE sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITMISENTITLED sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITMISACCEPTED sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITMISFREEOFCHARGE sy-vline 
WA_ICUSTCMPLITM_STR-CUSTCMPLITMISGOODWILL sy-vline 
WA_ICUSTCMPLITM_STR-PRODUCTNAME sy-vline 
WA_ICUSTCMPLITM_STR-UNITOFMEASURELONGNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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