ABAP Select data from SAP table FCOMS_GROUP_VALUE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FCOMS_GROUP_VALUE
*  INTO TABLE @DATA(IT_FCOMS_GROUP_VALUE2).
*--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_FCOMS_GROUP_VALUE INDEX 1 INTO DATA(WA_FCOMS_GROUP_VALUE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FCOMS_GROUP_VALUE>-UUID = 1.
<FCOMS_GROUP_VALUE>-SETID = 1.
<FCOMS_GROUP_VALUE>-VFROM = 1.
<FCOMS_GROUP_VALUE>-VTO = 1.
<FCOMS_GROUP_VALUE>-OLD_LINE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FCOMS_GROUP_VALUE-XSUPPRESS, sy-vline,
  WA_FCOMS_GROUP_VALUE-PFEED, sy-vline,
  WA_FCOMS_GROUP_VALUE-PFLAG, sy-vline,
  WA_FCOMS_GROUP_VALUE-PMFLAG, sy-vline,
  WA_FCOMS_GROUP_VALUE-LNAME, sy-vline,
  WA_FCOMS_GROUP_VALUE-FNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FCOMS_GROUP_VALUE 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_FCOMS_GROUP_VALUE 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_FCOMS_GROUP_VALUE INTO WA_FCOMS_GROUP_VALUE.


*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_FCOMS_GROUP_VALUE_STR, 
UUID TYPE STRING,
SETID TYPE STRING,
VFROM TYPE STRING,
VTO TYPE STRING,
OLD_LINE TYPE STRING,
XSUPPRESS TYPE STRING,
PFEED TYPE STRING,
PFLAG TYPE STRING,
PMFLAG TYPE STRING,
LNAME TYPE STRING,
FNAME TYPE STRING,
PRTCLASS TYPE STRING,
DESCRIPT TYPE STRING,
FPDOWN TYPE STRING,
ACTION TYPE STRING,
MARK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FCOMS_GROUP_VALUE_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_FCOMS_GROUP_VALUE_STR-UUID sy-vline 
WA_FCOMS_GROUP_VALUE_STR-SETID sy-vline 
WA_FCOMS_GROUP_VALUE_STR-VFROM sy-vline 
WA_FCOMS_GROUP_VALUE_STR-VTO sy-vline 
WA_FCOMS_GROUP_VALUE_STR-OLD_LINE sy-vline 
WA_FCOMS_GROUP_VALUE_STR-XSUPPRESS sy-vline 
WA_FCOMS_GROUP_VALUE_STR-PFEED sy-vline 
WA_FCOMS_GROUP_VALUE_STR-PFLAG sy-vline 
WA_FCOMS_GROUP_VALUE_STR-PMFLAG sy-vline 
WA_FCOMS_GROUP_VALUE_STR-LNAME sy-vline 
WA_FCOMS_GROUP_VALUE_STR-FNAME sy-vline 
WA_FCOMS_GROUP_VALUE_STR-PRTCLASS sy-vline 
WA_FCOMS_GROUP_VALUE_STR-DESCRIPT sy-vline 
WA_FCOMS_GROUP_VALUE_STR-FPDOWN sy-vline 
WA_FCOMS_GROUP_VALUE_STR-ACTION sy-vline 
WA_FCOMS_GROUP_VALUE_STR-MARK sy-vline      INTO ld_text SEPARATED BY SPACE.

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