ABAP Select data from SAP table RJFSKBUKRS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJFSKBUKRS
*  INTO TABLE @DATA(IT_RJFSKBUKRS2).
*--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_RJFSKBUKRS INDEX 1 INTO DATA(WA_RJFSKBUKRS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJFSKBUKRS>-MANDT = 1.
<RJFSKBUKRS>-SAMMG = 1.
<RJFSKBUKRS>-ERNAM = 1.
<RJFSKBUKRS>-ERDAT = 1.
<RJFSKBUKRS>-UZEIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJFSKBUKRS-ERNUM, sy-vline,
  WA_RJFSKBUKRS-PROGRAMM, sy-vline,
  WA_RJFSKBUKRS-SELSET, sy-vline,
  WA_RJFSKBUKRS-BATCH, sy-vline,
  WA_RJFSKBUKRS-VKORG, sy-vline,
  WA_RJFSKBUKRS-ISPBRTWR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJFSKBUKRS 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_RJFSKBUKRS 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_RJFSKBUKRS INTO WA_RJFSKBUKRS.


*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 ALPHA, internal->external for field SAMMG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJFSKBUKRS-SAMMG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJFSKBUKRS-SAMMG.
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_RJFSKBUKRS_STR, 
MANDT TYPE STRING,
SAMMG TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
UZEIT TYPE STRING,
ERNUM TYPE STRING,
PROGRAMM TYPE STRING,
SELSET TYPE STRING,
BATCH TYPE STRING,
VKORG TYPE STRING,
ISPBRTWR TYPE STRING,
ISPWAERK TYPE STRING,
ISPJVBNUM TYPE STRING,
ISPJXSUBE TYPE STRING,
ISPJXEUBE TYPE STRING,
ISPJXIUBE TYPE STRING,
ISPJXCUBE TYPE STRING,
ISPVBNUMAC TYPE STRING,
ISPJXZUBE TYPE STRING,
JXULPW TYPE STRING,
BUKRS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJFSKBUKRS_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_RJFSKBUKRS_STR-MANDT sy-vline 
WA_RJFSKBUKRS_STR-SAMMG sy-vline 
WA_RJFSKBUKRS_STR-ERNAM sy-vline 
WA_RJFSKBUKRS_STR-ERDAT sy-vline 
WA_RJFSKBUKRS_STR-UZEIT sy-vline 
WA_RJFSKBUKRS_STR-ERNUM sy-vline 
WA_RJFSKBUKRS_STR-PROGRAMM sy-vline 
WA_RJFSKBUKRS_STR-SELSET sy-vline 
WA_RJFSKBUKRS_STR-BATCH sy-vline 
WA_RJFSKBUKRS_STR-VKORG sy-vline 
WA_RJFSKBUKRS_STR-ISPBRTWR sy-vline 
WA_RJFSKBUKRS_STR-ISPWAERK sy-vline 
WA_RJFSKBUKRS_STR-ISPJVBNUM sy-vline 
WA_RJFSKBUKRS_STR-ISPJXSUBE sy-vline 
WA_RJFSKBUKRS_STR-ISPJXEUBE sy-vline 
WA_RJFSKBUKRS_STR-ISPJXIUBE sy-vline 
WA_RJFSKBUKRS_STR-ISPJXCUBE sy-vline 
WA_RJFSKBUKRS_STR-ISPVBNUMAC sy-vline 
WA_RJFSKBUKRS_STR-ISPJXZUBE sy-vline 
WA_RJFSKBUKRS_STR-JXULPW sy-vline 
WA_RJFSKBUKRS_STR-BUKRS sy-vline      INTO ld_text SEPARATED BY SPACE.

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