ABAP Select data from SAP table CCAMYWLITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCAMYWLITM
*  INTO TABLE @DATA(IT_CCAMYWLITM2).
*--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_CCAMYWLITM INDEX 1 INTO DATA(WA_CCAMYWLITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCAMYWLITM>-MANDT = 1.
<CCAMYWLITM>-CAWORKLISTITEMUUID = 1.
<CCAMYWLITM>-CAWORKLISTUUID = 1.
<CCAMYWLITM>-CAWORKLISTNUMBER = 1.
<CCAMYWLITM>-BUSINESSPARTNER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCAMYWLITM-BUSINESSPARTNERFULLNAME, sy-vline,
  WA_CCAMYWLITM-DISPLAYCURRENCY, sy-vline,
  WA_CCAMYWLITM-CAWORKLISTOPENAMOUNTINDC, sy-vline,
  WA_CCAMYWLITM-CAWORKLISTCLOSEDAMOUNTINDC, sy-vline,
  WA_CCAMYWLITM-CAWORKLISTINPROCESSAMOUNTINDC, sy-vline,
  WA_CCAMYWLITM-CAWORKLISTITMBALANCEAMOUNTINDC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCAMYWLITM 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_CCAMYWLITM 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_CCAMYWLITM INTO WA_CCAMYWLITM.


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

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCAMYWLITM-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCAMYWLITM-BUSINESSPARTNER.
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_CCAMYWLITM_STR, 
MANDT TYPE STRING,
CAWORKLISTITEMUUID TYPE STRING,
CAWORKLISTUUID TYPE STRING,
CAWORKLISTNUMBER TYPE STRING,
BUSINESSPARTNER TYPE STRING,
BUSINESSPARTNERFULLNAME TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
CAWORKLISTOPENAMOUNTINDC TYPE STRING,
CAWORKLISTCLOSEDAMOUNTINDC TYPE STRING,
CAWORKLISTINPROCESSAMOUNTINDC TYPE STRING,
CAWORKLISTITMBALANCEAMOUNTINDC TYPE STRING,
CAWORKLISTITEMCREDITAMOUNTINDC TYPE STRING,
CAWORKLISTITEMDEBITAMOUNTINDC TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
CACLRFCTNLASTPROCESSEDBYUSER TYPE STRING,
CACLRFCTNSTATUS TYPE STRING,
CACLRFCTNSTATUSNAME TYPE STRING,
CACLRFCTNPROCGSTATUS TYPE STRING,
CACLRFCTNPROCGSTATUSNAME TYPE STRING,
CAWORKLISTPRIORITY TYPE STRING,
CAWORKLISTDUEDATE TYPE STRING,
CACLARIFICATIONACTIONCODE TYPE STRING,
CAWORKLISTITEMREFERENCE1 TYPE STRING,
CAWORKLISTITEMREFERENCE2 TYPE STRING,
CAWORKLISTITEMREFERENCE3 TYPE STRING,
CACLRFCTNLOCKEDTODATE TYPE STRING,
CACLRFCTNRESUBMSNDATE TYPE STRING,
CACLRFCTNNMBROFWORKFLOWS TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
CAINTERNALAPPCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCAMYWLITM_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_CCAMYWLITM_STR-MANDT sy-vline 
WA_CCAMYWLITM_STR-CAWORKLISTITEMUUID sy-vline 
WA_CCAMYWLITM_STR-CAWORKLISTUUID sy-vline 
WA_CCAMYWLITM_STR-CAWORKLISTNUMBER sy-vline 
WA_CCAMYWLITM_STR-BUSINESSPARTNER sy-vline 
WA_CCAMYWLITM_STR-BUSINESSPARTNERFULLNAME sy-vline 
WA_CCAMYWLITM_STR-DISPLAYCURRENCY sy-vline 
WA_CCAMYWLITM_STR-CAWORKLISTOPENAMOUNTINDC sy-vline 
WA_CCAMYWLITM_STR-CAWORKLISTCLOSEDAMOUNTINDC sy-vline 
WA_CCAMYWLITM_STR-CAWORKLISTINPROCESSAMOUNTINDC sy-vline 
WA_CCAMYWLITM_STR-CAWORKLISTITMBALANCEAMOUNTINDC sy-vline 
WA_CCAMYWLITM_STR-CAWORKLISTITEMCREDITAMOUNTINDC sy-vline 
WA_CCAMYWLITM_STR-CAWORKLISTITEMDEBITAMOUNTINDC sy-vline 
WA_CCAMYWLITM_STR-TRANSACTIONCURRENCY sy-vline 
WA_CCAMYWLITM_STR-CACLRFCTNLASTPROCESSEDBYUSER sy-vline 
WA_CCAMYWLITM_STR-CACLRFCTNSTATUS sy-vline 
WA_CCAMYWLITM_STR-CACLRFCTNSTATUSNAME sy-vline 
WA_CCAMYWLITM_STR-CACLRFCTNPROCGSTATUS sy-vline 
WA_CCAMYWLITM_STR-CACLRFCTNPROCGSTATUSNAME sy-vline 
WA_CCAMYWLITM_STR-CAWORKLISTPRIORITY sy-vline 
WA_CCAMYWLITM_STR-CAWORKLISTDUEDATE sy-vline 
WA_CCAMYWLITM_STR-CACLARIFICATIONACTIONCODE sy-vline 
WA_CCAMYWLITM_STR-CAWORKLISTITEMREFERENCE1 sy-vline 
WA_CCAMYWLITM_STR-CAWORKLISTITEMREFERENCE2 sy-vline 
WA_CCAMYWLITM_STR-CAWORKLISTITEMREFERENCE3 sy-vline 
WA_CCAMYWLITM_STR-CACLRFCTNLOCKEDTODATE sy-vline 
WA_CCAMYWLITM_STR-CACLRFCTNRESUBMSNDATE sy-vline 
WA_CCAMYWLITM_STR-CACLRFCTNNMBROFWORKFLOWS sy-vline 
WA_CCAMYWLITM_STR-CREATEDBYUSER sy-vline 
WA_CCAMYWLITM_STR-CREATIONDATE sy-vline 
WA_CCAMYWLITM_STR-CREATIONTIME sy-vline 
WA_CCAMYWLITM_STR-CAINTERNALAPPCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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