ABAP Select data from SAP table FKRS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKRS
*  INTO TABLE @DATA(IT_FKRS2).
*--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_FKRS INDEX 1 INTO DATA(WA_FKRS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKRS>-FIKRS = 1.
<FKRS>-WAERS = 1.
<FKRS>-FITXT = 1.
<FKRS>-SPRAS = 1.
<FKRS>-CA_PERIV = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKRS-YEARPOS, sy-vline,
  WA_FKRS-YEARCTR, sy-vline,
  WA_FKRS-CA_PROFIL, sy-vline,
  WA_FKRS-SP_PROFIL, sy-vline,
  WA_FKRS-FS_PROFIL, sy-vline,
  WA_FKRS-AUGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKRS 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_FKRS 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_FKRS INTO WA_FKRS.


*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 SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_FKRS-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKRS-SPRAS.
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_FKRS_STR, 
FIKRS TYPE STRING,
WAERS TYPE STRING,
FITXT TYPE STRING,
SPRAS TYPE STRING,
CA_PERIV TYPE STRING,
YEARPOS TYPE STRING,
YEARCTR TYPE STRING,
CA_PROFIL TYPE STRING,
SP_PROFIL TYPE STRING,
FS_PROFIL TYPE STRING,
AUGRP TYPE STRING,
CA_NUMKR TYPE STRING,
DR_NUMKR TYPE STRING,
VERSACT TYPE STRING,
FMCARR TYPE STRING,
CA_STSMA TYPE STRING,
SEQUENCE TYPE STRING,
CO_TIMEDEP TYPE STRING,
FSTVARE TYPE STRING,
HRBA_PRECOM TYPE STRING,
HRBA_COMMIT TYPE STRING,
HRBA_BLOCK TYPE STRING,
FCODE_PERIV_ACTV TYPE STRING,
FAREA_ACTIVE TYPE STRING,
NO_HIERARCHY TYPE STRING,
BUDGETTYPE_RIB TYPE STRING,
BUDGETTYPE_COVER TYPE STRING,
KENNZIFFER TYPE STRING,
XBGACTIVE TYPE STRING,
FUND_BLANK TYPE STRING,
FUNCTION_BLANK TYPE STRING,
MEASURE_BLANK TYPE STRING,
GRANT_BLANK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKRS_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_FKRS_STR-FIKRS sy-vline 
WA_FKRS_STR-WAERS sy-vline 
WA_FKRS_STR-FITXT sy-vline 
WA_FKRS_STR-SPRAS sy-vline 
WA_FKRS_STR-CA_PERIV sy-vline 
WA_FKRS_STR-YEARPOS sy-vline 
WA_FKRS_STR-YEARCTR sy-vline 
WA_FKRS_STR-CA_PROFIL sy-vline 
WA_FKRS_STR-SP_PROFIL sy-vline 
WA_FKRS_STR-FS_PROFIL sy-vline 
WA_FKRS_STR-AUGRP sy-vline 
WA_FKRS_STR-CA_NUMKR sy-vline 
WA_FKRS_STR-DR_NUMKR sy-vline 
WA_FKRS_STR-VERSACT sy-vline 
WA_FKRS_STR-FMCARR sy-vline 
WA_FKRS_STR-CA_STSMA sy-vline 
WA_FKRS_STR-SEQUENCE sy-vline 
WA_FKRS_STR-CO_TIMEDEP sy-vline 
WA_FKRS_STR-FSTVARE sy-vline 
WA_FKRS_STR-HRBA_PRECOM sy-vline 
WA_FKRS_STR-HRBA_COMMIT sy-vline 
WA_FKRS_STR-HRBA_BLOCK sy-vline 
WA_FKRS_STR-FCODE_PERIV_ACTV sy-vline 
WA_FKRS_STR-FAREA_ACTIVE sy-vline 
WA_FKRS_STR-NO_HIERARCHY sy-vline 
WA_FKRS_STR-BUDGETTYPE_RIB sy-vline 
WA_FKRS_STR-BUDGETTYPE_COVER sy-vline 
WA_FKRS_STR-KENNZIFFER sy-vline 
WA_FKRS_STR-XBGACTIVE sy-vline 
WA_FKRS_STR-FUND_BLANK sy-vline 
WA_FKRS_STR-FUNCTION_BLANK sy-vline 
WA_FKRS_STR-MEASURE_BLANK sy-vline 
WA_FKRS_STR-GRANT_BLANK sy-vline      INTO ld_text SEPARATED BY SPACE.

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