ABAP Select data from SAP table ICMACTYWORKLIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICMACTYWORKLIST
*  INTO TABLE @DATA(IT_ICMACTYWORKLIST2).
*--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_ICMACTYWORKLIST INDEX 1 INTO DATA(WA_ICMACTYWORKLIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICMACTYWORKLIST>-MANDT = 1.
<ICMACTYWORKLIST>-CHGMGMTACTYUUID = 1.
<ICMACTYWORKLIST>-CHGMGMTACTYDESCTEXT = 1.
<ICMACTYWORKLIST>-CHGMGMTACTIVITY = 1.
<ICMACTYWORKLIST>-CHGMGMTACTYTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICMACTYWORKLIST-CHGMGMTACTYCATEGORY, sy-vline,
  WA_ICMACTYWORKLIST-CHGMGMTACTYAUTHORIZATIONGROUP, sy-vline,
  WA_ICMACTYWORKLIST-CHGMGMTREQTYPE, sy-vline,
  WA_ICMACTYWORKLIST-CHGMGMTREQDESCRIPTIONTEXT, sy-vline,
  WA_ICMACTYWORKLIST-CHGMGMTREQUEST, sy-vline,
  WA_ICMACTYWORKLIST-CHGMGMTDIGITALSGNTRSTATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICMACTYWORKLIST 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_ICMACTYWORKLIST 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_ICMACTYWORKLIST INTO WA_ICMACTYWORKLIST.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field CHGMGMTUSERSTATUS5
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICMACTYWORKLIST-CHGMGMTUSERSTATUS5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICMACTYWORKLIST-CHGMGMTUSERSTATUS5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHGMGMTACTYRESPONSIBLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICMACTYWORKLIST-CHGMGMTACTYRESPONSIBLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICMACTYWORKLIST-CHGMGMTACTYRESPONSIBLE.
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_ICMACTYWORKLIST_STR, 
MANDT TYPE STRING,
CHGMGMTACTYUUID TYPE STRING,
CHGMGMTACTYDESCTEXT TYPE STRING,
CHGMGMTACTIVITY TYPE STRING,
CHGMGMTACTYTYPE TYPE STRING,
CHGMGMTACTYCATEGORY TYPE STRING,
CHGMGMTACTYAUTHORIZATIONGROUP TYPE STRING,
CHGMGMTREQTYPE TYPE STRING,
CHGMGMTREQDESCRIPTIONTEXT TYPE STRING,
CHGMGMTREQUEST TYPE STRING,
CHGMGMTDIGITALSGNTRSTATUS TYPE STRING,
CHGMGMTDEFERRALSTATUS TYPE STRING,
CHGMGMTACTYLIFECYCLESTATUS TYPE STRING,
CHGMGMTACTYSTATUS TYPE STRING,
CHGMGMTACTYSTATUSCRITICALITY TYPE STRING,
CHGMGMTUSERSTATUSPROFILE TYPE STRING,
CHGMGMTUSERSTATUS1 TYPE STRING,
CHGMGMTUSERSTATUS2 TYPE STRING,
CHGMGMTUSERSTATUS3 TYPE STRING,
CHGMGMTUSERSTATUS4 TYPE STRING,
CHGMGMTUSERSTATUS5 TYPE STRING,
CHGMGMTACTYRESPONSIBLE TYPE STRING,
CHGMGMTACTYDUEDATETIME TYPE STRING,
CHGMGMTACTYDUEDATE TYPE STRING,
CHGMGMTACTYMIGRATIONSOURCE TYPE STRING,
CHGMGMTREQUUID TYPE STRING,
CHGMGMTREQMAINPLANT TYPE STRING,
CHGMGMTREQMAINPLANTUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICMACTYWORKLIST_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_ICMACTYWORKLIST_STR-MANDT sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTACTYUUID sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTACTYDESCTEXT sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTACTIVITY sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTACTYTYPE sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTACTYCATEGORY sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTACTYAUTHORIZATIONGROUP sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTREQTYPE sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTREQDESCRIPTIONTEXT sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTREQUEST sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTDIGITALSGNTRSTATUS sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTDEFERRALSTATUS sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTACTYLIFECYCLESTATUS sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTACTYSTATUS sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTACTYSTATUSCRITICALITY sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTUSERSTATUSPROFILE sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTUSERSTATUS1 sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTUSERSTATUS2 sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTUSERSTATUS3 sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTUSERSTATUS4 sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTUSERSTATUS5 sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTACTYRESPONSIBLE sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTACTYDUEDATETIME sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTACTYDUEDATE sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTACTYMIGRATIONSOURCE sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTREQUUID sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTREQMAINPLANT sy-vline 
WA_ICMACTYWORKLIST_STR-CHGMGMTREQMAINPLANTUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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