ABAP Select data from SAP table RKPT3_FLAGS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RKPT3_FLAGS 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 RKPT3_FLAGS. 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 RKPT3_FLAGS 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_RKPT3_FLAGS TYPE STANDARD TABLE OF RKPT3_FLAGS,
      WA_RKPT3_FLAGS TYPE RKPT3_FLAGS,
      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: <RKPT3_FLAGS> TYPE RKPT3_FLAGS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RKPT3_FLAGS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RKPT3_FLAGS
  INTO TABLE IT_RKPT3_FLAGS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RKPT3_FLAGS
*  INTO TABLE @DATA(IT_RKPT3_FLAGS2).
*--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_RKPT3_FLAGS INDEX 1 INTO DATA(WA_RKPT3_FLAGS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RKPT3_FLAGS ASSIGNING <RKPT3_FLAGS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RKPT3_FLAGS>-FLG_VRGALL = 1.
<RKPT3_FLAGS>-FLG_VRGSEL = 1.
<RKPT3_FLAGS>-UPDATE_NOT = 1.
<RKPT3_FLAGS>-UPDATE_YES = 1.
<RKPT3_FLAGS>-UPDATE_KUM = 1.

ENDLOOP.

LOOP AT IT_RKPT3_FLAGS INTO WA_RKPT3_FLAGS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RKPT3_FLAGS-FLG_SOBJ_YES, sy-vline,
  WA_RKPT3_FLAGS-FLG_SOBJ_NO, sy-vline,
  WA_RKPT3_FLAGS-FLG_BATCH, sy-vline,
  WA_RKPT3_FLAGS-FLG_TEST, sy-vline,
  WA_RKPT3_FLAGS-FLG_PROTO, sy-vline,
  WA_RKPT3_FLAGS-FLG_STRUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RKPT3_FLAGS 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_RKPT3_FLAGS 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_RKPT3_FLAGS INTO WA_RKPT3_FLAGS.


*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_RKPT3_FLAGS_STR, 
FLG_VRGALL TYPE STRING,
FLG_VRGSEL TYPE STRING,
UPDATE_NOT TYPE STRING,
UPDATE_YES TYPE STRING,
UPDATE_KUM TYPE STRING,
FLG_SOBJ_YES TYPE STRING,
FLG_SOBJ_NO TYPE STRING,
FLG_BATCH TYPE STRING,
FLG_TEST TYPE STRING,
FLG_PROTO TYPE STRING,
FLG_STRUM TYPE STRING,
FLG_STRUO TYPE STRING,
FLG_SPLIT TYPE STRING,
FLG_SPECPER TYPE STRING,
FLG_LTEXT TYPE STRING,
FLG_KALK TYPE STRING,
FLG_RKP2Q TYPE STRING,
FLG_RKP2P TYPE STRING,
NO_GJAHR TYPE STRING,
NO_PERIODS TYPE STRING,
FLG_PROJECTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RKPT3_FLAGS_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_RKPT3_FLAGS_STR-FLG_VRGALL sy-vline 
WA_RKPT3_FLAGS_STR-FLG_VRGSEL sy-vline 
WA_RKPT3_FLAGS_STR-UPDATE_NOT sy-vline 
WA_RKPT3_FLAGS_STR-UPDATE_YES sy-vline 
WA_RKPT3_FLAGS_STR-UPDATE_KUM sy-vline 
WA_RKPT3_FLAGS_STR-FLG_SOBJ_YES sy-vline 
WA_RKPT3_FLAGS_STR-FLG_SOBJ_NO sy-vline 
WA_RKPT3_FLAGS_STR-FLG_BATCH sy-vline 
WA_RKPT3_FLAGS_STR-FLG_TEST sy-vline 
WA_RKPT3_FLAGS_STR-FLG_PROTO sy-vline 
WA_RKPT3_FLAGS_STR-FLG_STRUM sy-vline 
WA_RKPT3_FLAGS_STR-FLG_STRUO sy-vline 
WA_RKPT3_FLAGS_STR-FLG_SPLIT sy-vline 
WA_RKPT3_FLAGS_STR-FLG_SPECPER sy-vline 
WA_RKPT3_FLAGS_STR-FLG_LTEXT sy-vline 
WA_RKPT3_FLAGS_STR-FLG_KALK sy-vline 
WA_RKPT3_FLAGS_STR-FLG_RKP2Q sy-vline 
WA_RKPT3_FLAGS_STR-FLG_RKP2P sy-vline 
WA_RKPT3_FLAGS_STR-NO_GJAHR sy-vline 
WA_RKPT3_FLAGS_STR-NO_PERIODS sy-vline 
WA_RKPT3_FLAGS_STR-FLG_PROJECTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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