ABAP Select data from SAP table FCML_T_OBJTYPE into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FCML_T_OBJTYPE
*  INTO TABLE @DATA(IT_FCML_T_OBJTYPE2).
*--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_FCML_T_OBJTYPE INDEX 1 INTO DATA(WA_FCML_T_OBJTYPE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FCML_T_OBJTYPE>-CLIENT = 1.
<FCML_T_OBJTYPE>-ID = 1.
<FCML_T_OBJTYPE>-OBJ_TYPE = 1.
<FCML_T_OBJTYPE>-OBJ_TYPE_T = 1.
<FCML_T_OBJTYPE>-FILLREDBYTEFROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FCML_T_OBJTYPE-FILLGREENBYTEFROM, sy-vline,
  WA_FCML_T_OBJTYPE-FILLBLUEBYTEFROM, sy-vline,
  WA_FCML_T_OBJTYPE-FILLREDBYTETO, sy-vline,
  WA_FCML_T_OBJTYPE-FILLGREENBYTETO, sy-vline,
  WA_FCML_T_OBJTYPE-FILLBLUEBYTETO, sy-vline,
  WA_FCML_T_OBJTYPE-STROKEREDBYTE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FCML_T_OBJTYPE 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_FCML_T_OBJTYPE 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_FCML_T_OBJTYPE INTO WA_FCML_T_OBJTYPE.


*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_FCML_T_OBJTYPE_STR, 
CLIENT TYPE STRING,
ID TYPE STRING,
OBJ_TYPE TYPE STRING,
OBJ_TYPE_T TYPE STRING,
FILLREDBYTEFROM TYPE STRING,
FILLGREENBYTEFROM TYPE STRING,
FILLBLUEBYTEFROM TYPE STRING,
FILLREDBYTETO TYPE STRING,
FILLGREENBYTETO TYPE STRING,
FILLBLUEBYTETO TYPE STRING,
STROKEREDBYTE TYPE STRING,
STROKEGREENBYTE TYPE STRING,
STROKEBLUEBYTE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FCML_T_OBJTYPE_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_FCML_T_OBJTYPE_STR-CLIENT sy-vline 
WA_FCML_T_OBJTYPE_STR-ID sy-vline 
WA_FCML_T_OBJTYPE_STR-OBJ_TYPE sy-vline 
WA_FCML_T_OBJTYPE_STR-OBJ_TYPE_T sy-vline 
WA_FCML_T_OBJTYPE_STR-FILLREDBYTEFROM sy-vline 
WA_FCML_T_OBJTYPE_STR-FILLGREENBYTEFROM sy-vline 
WA_FCML_T_OBJTYPE_STR-FILLBLUEBYTEFROM sy-vline 
WA_FCML_T_OBJTYPE_STR-FILLREDBYTETO sy-vline 
WA_FCML_T_OBJTYPE_STR-FILLGREENBYTETO sy-vline 
WA_FCML_T_OBJTYPE_STR-FILLBLUEBYTETO sy-vline 
WA_FCML_T_OBJTYPE_STR-STROKEREDBYTE sy-vline 
WA_FCML_T_OBJTYPE_STR-STROKEGREENBYTE sy-vline 
WA_FCML_T_OBJTYPE_STR-STROKEBLUEBYTE sy-vline      INTO ld_text SEPARATED BY SPACE.

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