ABAP Select data from SAP table ICMRROCUBE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICMRROCUBE
*  INTO TABLE @DATA(IT_ICMRROCUBE2).
*--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_ICMRROCUBE INDEX 1 INTO DATA(WA_ICMRROCUBE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICMRROCUBE>-MANDT = 1.
<ICMRROCUBE>-CHGMGMTREQRELTDOBJUUID = 1.
<ICMRROCUBE>-CHGMGMTREQUUID = 1.
<ICMRROCUBE>-CHGMGMTREQUEST = 1.
<ICMRROCUBE>-CHGMGMTREQDESCRIPTIONTEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICMRROCUBE-CHGMGMTREQTYPE, sy-vline,
  WA_ICMRROCUBE-CHGMGMTREQSTATUS, sy-vline,
  WA_ICMRROCUBE-CHGMGMTREQLEADINGOBJTYPE, sy-vline,
  WA_ICMRROCUBE-CHGMGMTREQLEADINGOBJECT, sy-vline,
  WA_ICMRROCUBE-CHGMGMTREQLEADINGOBJNAME, sy-vline,
  WA_ICMRROCUBE-COUNTRY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICMRROCUBE 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_ICMRROCUBE 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_ICMRROCUBE INTO WA_ICMRROCUBE.


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

*Conversion exit ALPHA, internal->external for field CHGMGMTREQIMPACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICMRROCUBE-CHGMGMTREQIMPACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICMRROCUBE-CHGMGMTREQIMPACT.
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_ICMRROCUBE_STR, 
MANDT TYPE STRING,
CHGMGMTREQRELTDOBJUUID TYPE STRING,
CHGMGMTREQUUID TYPE STRING,
CHGMGMTREQUEST TYPE STRING,
CHGMGMTREQDESCRIPTIONTEXT TYPE STRING,
CHGMGMTREQTYPE TYPE STRING,
CHGMGMTREQSTATUS TYPE STRING,
CHGMGMTREQLEADINGOBJTYPE TYPE STRING,
CHGMGMTREQLEADINGOBJECT TYPE STRING,
CHGMGMTREQLEADINGOBJNAME TYPE STRING,
COUNTRY TYPE STRING,
CHGMGMTRELTDOBJTYPE TYPE STRING,
CHGMGMTRELTDOBJTYPETEXT TYPE STRING,
CHGMGMTREQRELTDOBJNAME TYPE STRING,
CHGMGMTREQRELTDOBJECT TYPE STRING,
CHGMGMTREQISEMERGENCY TYPE STRING,
CHGMGMTREQDURATIONCODE TYPE STRING,
CHGMGMTREQIMPACT TYPE STRING,
CHGMGMTREQREVERSALDATE TYPE STRING,
CHGMGMTREQAPPROVALDATE TYPE STRING,
CHGMGMTREQEXECSTARTDATE TYPE STRING,
CHGMGMTREQOPLSTARTDATE TYPE STRING,
CHGMGMTREQCREATIONDATE TYPE STRING,
CHGMGMTREQAUTHORIZATIONGROUP TYPE STRING,
NUMBEROFCHGMGMTREQUESTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICMRROCUBE_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_ICMRROCUBE_STR-MANDT sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQRELTDOBJUUID sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQUUID sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQUEST sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQDESCRIPTIONTEXT sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQTYPE sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQSTATUS sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQLEADINGOBJTYPE sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQLEADINGOBJECT sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQLEADINGOBJNAME sy-vline 
WA_ICMRROCUBE_STR-COUNTRY sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTRELTDOBJTYPE sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTRELTDOBJTYPETEXT sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQRELTDOBJNAME sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQRELTDOBJECT sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQISEMERGENCY sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQDURATIONCODE sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQIMPACT sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQREVERSALDATE sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQAPPROVALDATE sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQEXECSTARTDATE sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQOPLSTARTDATE sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQCREATIONDATE sy-vline 
WA_ICMRROCUBE_STR-CHGMGMTREQAUTHORIZATIONGROUP sy-vline 
WA_ICMRROCUBE_STR-NUMBEROFCHGMGMTREQUESTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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