ABAP Select data from SAP table FKKOPTID into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKOPTID
*  INTO TABLE @DATA(IT_FKKOPTID2).
*--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_FKKOPTID INDEX 1 INTO DATA(WA_FKKOPTID2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKOPTID>-OPT_0001 = 1.
<FKKOPTID>-OPT_0002 = 1.
<FKKOPTID>-OPT_0004 = 1.
<FKKOPTID>-OPT_0010 = 1.
<FKKOPTID>-OPT_0011 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKOPTID-OPT_0012, sy-vline,
  WA_FKKOPTID-OPT_0020, sy-vline,
  WA_FKKOPTID-OPT_0030, sy-vline,
  WA_FKKOPTID-OPT_0031, sy-vline,
  WA_FKKOPTID-OPT_0032, sy-vline,
  WA_FKKOPTID-OPT_0033, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKOPTID 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_FKKOPTID 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_FKKOPTID INTO WA_FKKOPTID.


*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_FKKOPTID_STR, 
OPT_0001 TYPE STRING,
OPT_0002 TYPE STRING,
OPT_0004 TYPE STRING,
OPT_0010 TYPE STRING,
OPT_0011 TYPE STRING,
OPT_0012 TYPE STRING,
OPT_0020 TYPE STRING,
OPT_0030 TYPE STRING,
OPT_0031 TYPE STRING,
OPT_0032 TYPE STRING,
OPT_0033 TYPE STRING,
OPT_0035 TYPE STRING,
OPT_0036 TYPE STRING,
OPT_0040 TYPE STRING,
OPT_0041 TYPE STRING,
OPT_0042 TYPE STRING,
OPT_0043 TYPE STRING,
OPT_0050 TYPE STRING,
OPT_0060 TYPE STRING,
OPT_0070 TYPE STRING,
OPT_0071 TYPE STRING,
OPT_0072 TYPE STRING,
OPT_0073 TYPE STRING,
OPT_0075 TYPE STRING,
OPT_0079 TYPE STRING,
OPT_0080 TYPE STRING,
OPT_0081 TYPE STRING,
OPT_0082 TYPE STRING,
OPT_0083 TYPE STRING,
OPT_0084 TYPE STRING,
OPT_0085 TYPE STRING,
OPT_0086 TYPE STRING,
OPT_0087 TYPE STRING,
OPT_0088 TYPE STRING,
OPT_0089 TYPE STRING,
OPT_0090 TYPE STRING,
OPT_0095 TYPE STRING,
OPT_0096 TYPE STRING,
OPT_0100 TYPE STRING,
OPT_0550 TYPE STRING,
OPT_0580 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKOPTID_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_FKKOPTID_STR-OPT_0001 sy-vline 
WA_FKKOPTID_STR-OPT_0002 sy-vline 
WA_FKKOPTID_STR-OPT_0004 sy-vline 
WA_FKKOPTID_STR-OPT_0010 sy-vline 
WA_FKKOPTID_STR-OPT_0011 sy-vline 
WA_FKKOPTID_STR-OPT_0012 sy-vline 
WA_FKKOPTID_STR-OPT_0020 sy-vline 
WA_FKKOPTID_STR-OPT_0030 sy-vline 
WA_FKKOPTID_STR-OPT_0031 sy-vline 
WA_FKKOPTID_STR-OPT_0032 sy-vline 
WA_FKKOPTID_STR-OPT_0033 sy-vline 
WA_FKKOPTID_STR-OPT_0035 sy-vline 
WA_FKKOPTID_STR-OPT_0036 sy-vline 
WA_FKKOPTID_STR-OPT_0040 sy-vline 
WA_FKKOPTID_STR-OPT_0041 sy-vline 
WA_FKKOPTID_STR-OPT_0042 sy-vline 
WA_FKKOPTID_STR-OPT_0043 sy-vline 
WA_FKKOPTID_STR-OPT_0050 sy-vline 
WA_FKKOPTID_STR-OPT_0060 sy-vline 
WA_FKKOPTID_STR-OPT_0070 sy-vline 
WA_FKKOPTID_STR-OPT_0071 sy-vline 
WA_FKKOPTID_STR-OPT_0072 sy-vline 
WA_FKKOPTID_STR-OPT_0073 sy-vline 
WA_FKKOPTID_STR-OPT_0075 sy-vline 
WA_FKKOPTID_STR-OPT_0079 sy-vline 
WA_FKKOPTID_STR-OPT_0080 sy-vline 
WA_FKKOPTID_STR-OPT_0081 sy-vline 
WA_FKKOPTID_STR-OPT_0082 sy-vline 
WA_FKKOPTID_STR-OPT_0083 sy-vline 
WA_FKKOPTID_STR-OPT_0084 sy-vline 
WA_FKKOPTID_STR-OPT_0085 sy-vline 
WA_FKKOPTID_STR-OPT_0086 sy-vline 
WA_FKKOPTID_STR-OPT_0087 sy-vline 
WA_FKKOPTID_STR-OPT_0088 sy-vline 
WA_FKKOPTID_STR-OPT_0089 sy-vline 
WA_FKKOPTID_STR-OPT_0090 sy-vline 
WA_FKKOPTID_STR-OPT_0095 sy-vline 
WA_FKKOPTID_STR-OPT_0096 sy-vline 
WA_FKKOPTID_STR-OPT_0100 sy-vline 
WA_FKKOPTID_STR-OPT_0550 sy-vline 
WA_FKKOPTID_STR-OPT_0580 sy-vline      INTO ld_text SEPARATED BY SPACE.

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