ABAP Select data from SAP table ICMREQUEST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICMREQUEST
*  INTO TABLE @DATA(IT_ICMREQUEST2).
*--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_ICMREQUEST INDEX 1 INTO DATA(WA_ICMREQUEST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICMREQUEST>-MANDT = 1.
<ICMREQUEST>-CHGMGMTREQUUID = 1.
<ICMREQUEST>-CHGMGMTREQNODECATUUID = 1.
<ICMREQUEST>-CHGMGMTREQUEST = 1.
<ICMREQUEST>-CHGMGMTREQTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICMREQUEST-CHGMGMTREQCATEGORY, sy-vline,
  WA_ICMREQUEST-PARENTCHGMGMTREQUUID, sy-vline,
  WA_ICMREQUEST-CHGMGMTREQSORTSEQUENCEVALUE, sy-vline,
  WA_ICMREQUEST-CHGMGMTREQAUTHORIZATIONGROUP, sy-vline,
  WA_ICMREQUEST-CHGMGMTREQIMPACT, sy-vline,
  WA_ICMREQUEST-CHGMGMTREQISEMERGENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICMREQUEST 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_ICMREQUEST 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_ICMREQUEST INTO WA_ICMREQUEST.


*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_ICMREQUEST-CHGMGMTREQUEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICMREQUEST-CHGMGMTREQUEST.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field CHGMGMTUSERSTATUS1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICMREQUEST-CHGMGMTUSERSTATUS1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICMREQUEST-CHGMGMTUSERSTATUS1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHGMGMTUSERSTATUS2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICMREQUEST-CHGMGMTUSERSTATUS2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICMREQUEST-CHGMGMTUSERSTATUS2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHGMGMTUSERSTATUS3
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICMREQUEST-CHGMGMTUSERSTATUS3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICMREQUEST-CHGMGMTUSERSTATUS3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHGMGMTUSERSTATUS4
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICMREQUEST-CHGMGMTUSERSTATUS4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICMREQUEST-CHGMGMTUSERSTATUS4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHGMGMTUSERSTATUS5
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICMREQUEST-CHGMGMTUSERSTATUS5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICMREQUEST-CHGMGMTUSERSTATUS5.
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_ICMREQUEST_STR, 
MANDT TYPE STRING,
CHGMGMTREQUUID TYPE STRING,
CHGMGMTREQNODECATUUID TYPE STRING,
CHGMGMTREQUEST TYPE STRING,
CHGMGMTREQTYPE TYPE STRING,
CHGMGMTREQCATEGORY TYPE STRING,
PARENTCHGMGMTREQUUID TYPE STRING,
CHGMGMTREQSORTSEQUENCEVALUE TYPE STRING,
CHGMGMTREQAUTHORIZATIONGROUP TYPE STRING,
CHGMGMTREQIMPACT TYPE STRING,
CHGMGMTREQISEMERGENCY TYPE STRING,
CHGMGMTREQREPORTEDBYBPNAME TYPE STRING,
CHGMGMTREQDURATIONCODE TYPE STRING,
COUNTRY TYPE STRING,
CHGMGMTUSERSTATUSPROFILE TYPE STRING,
CHGMGMTREQLIFECYCLESTATUS TYPE STRING,
CHGMGMTDEFERRALSTATUS TYPE STRING,
CHGMGMTDIGITALSGNTRSTATUS TYPE STRING,
CHGMGMTARCHIVINGSTATUS TYPE STRING,
CHGMGMTUSERSTATUS1 TYPE STRING,
CHGMGMTUSERSTATUS2 TYPE STRING,
CHGMGMTUSERSTATUS3 TYPE STRING,
CHGMGMTUSERSTATUS4 TYPE STRING,
CHGMGMTUSERSTATUS5 TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
CHGMGMTREQMIGRATIONSOURCE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICMREQUEST_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_ICMREQUEST_STR-MANDT sy-vline 
WA_ICMREQUEST_STR-CHGMGMTREQUUID sy-vline 
WA_ICMREQUEST_STR-CHGMGMTREQNODECATUUID sy-vline 
WA_ICMREQUEST_STR-CHGMGMTREQUEST sy-vline 
WA_ICMREQUEST_STR-CHGMGMTREQTYPE sy-vline 
WA_ICMREQUEST_STR-CHGMGMTREQCATEGORY sy-vline 
WA_ICMREQUEST_STR-PARENTCHGMGMTREQUUID sy-vline 
WA_ICMREQUEST_STR-CHGMGMTREQSORTSEQUENCEVALUE sy-vline 
WA_ICMREQUEST_STR-CHGMGMTREQAUTHORIZATIONGROUP sy-vline 
WA_ICMREQUEST_STR-CHGMGMTREQIMPACT sy-vline 
WA_ICMREQUEST_STR-CHGMGMTREQISEMERGENCY sy-vline 
WA_ICMREQUEST_STR-CHGMGMTREQREPORTEDBYBPNAME sy-vline 
WA_ICMREQUEST_STR-CHGMGMTREQDURATIONCODE sy-vline 
WA_ICMREQUEST_STR-COUNTRY sy-vline 
WA_ICMREQUEST_STR-CHGMGMTUSERSTATUSPROFILE sy-vline 
WA_ICMREQUEST_STR-CHGMGMTREQLIFECYCLESTATUS sy-vline 
WA_ICMREQUEST_STR-CHGMGMTDEFERRALSTATUS sy-vline 
WA_ICMREQUEST_STR-CHGMGMTDIGITALSGNTRSTATUS sy-vline 
WA_ICMREQUEST_STR-CHGMGMTARCHIVINGSTATUS sy-vline 
WA_ICMREQUEST_STR-CHGMGMTUSERSTATUS1 sy-vline 
WA_ICMREQUEST_STR-CHGMGMTUSERSTATUS2 sy-vline 
WA_ICMREQUEST_STR-CHGMGMTUSERSTATUS3 sy-vline 
WA_ICMREQUEST_STR-CHGMGMTUSERSTATUS4 sy-vline 
WA_ICMREQUEST_STR-CHGMGMTUSERSTATUS5 sy-vline 
WA_ICMREQUEST_STR-CREATEDBYUSER sy-vline 
WA_ICMREQUEST_STR-CREATIONDATETIME sy-vline 
WA_ICMREQUEST_STR-LASTCHANGEDBYUSER sy-vline 
WA_ICMREQUEST_STR-LASTCHANGEDATETIME sy-vline 
WA_ICMREQUEST_STR-CHGMGMTREQMIGRATIONSOURCE sy-vline      INTO ld_text SEPARATED BY SPACE.

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