ABAP Select data from SAP table FCOMS_GROUP_COMMON_ATTR 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_COMMON_ATTR 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_COMMON_ATTR. 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_COMMON_ATTR 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_COMMON_ATTR TYPE STANDARD TABLE OF FCOMS_GROUP_COMMON_ATTR,
      WA_FCOMS_GROUP_COMMON_ATTR TYPE FCOMS_GROUP_COMMON_ATTR,
      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_COMMON_ATTR> TYPE FCOMS_GROUP_COMMON_ATTR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FCOMS_GROUP_COMMON_ATTR
*  INTO TABLE @DATA(IT_FCOMS_GROUP_COMMON_ATTR2).
*--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_COMMON_ATTR INDEX 1 INTO DATA(WA_FCOMS_GROUP_COMMON_ATTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FCOMS_GROUP_COMMON_ATTR>-UUID = 1.
<FCOMS_GROUP_COMMON_ATTR>-HLEVEL = 1.
<FCOMS_GROUP_COMMON_ATTR>-SETID = 1.
<FCOMS_GROUP_COMMON_ATTR>-SHORTNAME = 1.
<FCOMS_GROUP_COMMON_ATTR>-CLASS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FCOMS_GROUP_COMMON_ATTR-TYPE, sy-vline,
  WA_FCOMS_GROUP_COMMON_ATTR-BEZEI, sy-vline,
  WA_FCOMS_GROUP_COMMON_ATTR-DESCRIPT, sy-vline,
  WA_FCOMS_GROUP_COMMON_ATTR-ICON, sy-vline,
  WA_FCOMS_GROUP_COMMON_ATTR-AUTHGR, sy-vline,
  WA_FCOMS_GROUP_COMMON_ATTR-PRTCLASS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FCOMS_GROUP_COMMON_ATTR 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_COMMON_ATTR 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_COMMON_ATTR INTO WA_FCOMS_GROUP_COMMON_ATTR.


*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 ISOLA, internal->external for field OLANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_FCOMS_GROUP_COMMON_ATTR-OLANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCOMS_GROUP_COMMON_ATTR-OLANGU.
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_FCOMS_GROUP_COMMON_ATTR_STR, 
UUID TYPE STRING,
HLEVEL TYPE STRING,
SETID TYPE STRING,
SHORTNAME TYPE STRING,
CLASS TYPE STRING,
TYPE TYPE STRING,
BEZEI TYPE STRING,
DESCRIPT TYPE STRING,
ICON TYPE STRING,
AUTHGR TYPE STRING,
PRTCLASS TYPE STRING,
RVALUE TYPE STRING,
OLANGU TYPE STRING,
VFROM TYPE STRING,
VFROM_T TYPE STRING,
VTO TYPE STRING,
VTO_T TYPE STRING,
CD_CC_REF TYPE STRING,
XDYNAMIC TYPE STRING,
STANDARD TYPE STRING,
CREUSER TYPE STRING,
CREDATE TYPE STRING,
CRETIME TYPE STRING,
UPDUSER TYPE STRING,
UPDDATE TYPE STRING,
UPDTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FCOMS_GROUP_COMMON_ATTR_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_COMMON_ATTR_STR-UUID sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-HLEVEL sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-SETID sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-SHORTNAME sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-CLASS sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-TYPE sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-BEZEI sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-DESCRIPT sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-ICON sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-AUTHGR sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-PRTCLASS sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-RVALUE sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-OLANGU sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-VFROM sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-VFROM_T sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-VTO sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-VTO_T sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-CD_CC_REF sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-XDYNAMIC sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-STANDARD sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-CREUSER sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-CREDATE sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-CRETIME sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-UPDUSER sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-UPDDATE sy-vline 
WA_FCOMS_GROUP_COMMON_ATTR_STR-UPDTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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