ABAP Select data from SAP table FCXL_CASPS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FCXL_CASPS
*  INTO TABLE @DATA(IT_FCXL_CASPS2).
*--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_FCXL_CASPS INDEX 1 INTO DATA(WA_FCXL_CASPS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FCXL_CASPS>-ASPECT_ID = 1.
<FCXL_CASPS>-DESCR = 1.
<FCXL_CASPS>-NOSETS = 1.
<FCXL_CASPS>-NOHIERARCHIES = 1.
<FCXL_CASPS>-NOATTRIBUTES = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FCXL_CASPS-NOPOST, sy-vline,
  WA_FCXL_CASPS-NOVALIDATE, sy-vline,
  WA_FCXL_CASPS-NOPIVOT, sy-vline,
  WA_FCXL_CASPS-NOSIGNHANDLING, sy-vline,
  WA_FCXL_CASPS-HASMASSINTERFACE, sy-vline,
  WA_FCXL_CASPS-UPDATEMODES, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FCXL_CASPS 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_FCXL_CASPS 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_FCXL_CASPS INTO WA_FCXL_CASPS.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FCXL_CASPS_STR, 
ASPECT_ID TYPE STRING,
DESCR TYPE STRING,
NOSETS TYPE STRING,
NOHIERARCHIES TYPE STRING,
NOATTRIBUTES TYPE STRING,
NOPOST TYPE STRING,
NOVALIDATE TYPE STRING,
NOPIVOT TYPE STRING,
NOSIGNHANDLING TYPE STRING,
HASMASSINTERFACE TYPE STRING,
UPDATEMODES TYPE STRING,
HASROLLUP TYPE STRING,
HASFEATURELIST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FCXL_CASPS_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_FCXL_CASPS_STR-ASPECT_ID sy-vline 
WA_FCXL_CASPS_STR-DESCR sy-vline 
WA_FCXL_CASPS_STR-NOSETS sy-vline 
WA_FCXL_CASPS_STR-NOHIERARCHIES sy-vline 
WA_FCXL_CASPS_STR-NOATTRIBUTES sy-vline 
WA_FCXL_CASPS_STR-NOPOST sy-vline 
WA_FCXL_CASPS_STR-NOVALIDATE sy-vline 
WA_FCXL_CASPS_STR-NOPIVOT sy-vline 
WA_FCXL_CASPS_STR-NOSIGNHANDLING sy-vline 
WA_FCXL_CASPS_STR-HASMASSINTERFACE sy-vline 
WA_FCXL_CASPS_STR-UPDATEMODES sy-vline 
WA_FCXL_CASPS_STR-HASROLLUP sy-vline 
WA_FCXL_CASPS_STR-HASFEATURELIST sy-vline      INTO ld_text SEPARATED BY SPACE.

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