ABAP Select data from SAP table FINS_FI_BCF_MESS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FINS_FI_BCF_MESS
*  INTO TABLE @DATA(IT_FINS_FI_BCF_MESS2).
*--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_FINS_FI_BCF_MESS INDEX 1 INTO DATA(WA_FINS_FI_BCF_MESS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FINS_FI_BCF_MESS>-MANDT = 1.
<FINS_FI_BCF_MESS>-BUKRS = 1.
<FINS_FI_BCF_MESS>-RLDNR = 1.
<FINS_FI_BCF_MESS>-GJAHR = 1.
<FINS_FI_BCF_MESS>-MESSFROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FINS_FI_BCF_MESS-MESSITEM, sy-vline,
  WA_FINS_FI_BCF_MESS-STEP, sy-vline,
  WA_FINS_FI_BCF_MESS-OLDSTEP, sy-vline,
  WA_FINS_FI_BCF_MESS-TIMESTAMP, sy-vline,
  WA_FINS_FI_BCF_MESS-RUNCHOICE, sy-vline,
  WA_FINS_FI_BCF_MESS-JOBNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FINS_FI_BCF_MESS 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_FINS_FI_BCF_MESS 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_FINS_FI_BCF_MESS INTO WA_FINS_FI_BCF_MESS.


*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 RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FINS_FI_BCF_MESS-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_FI_BCF_MESS-RLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FINS_FI_BCF_MESS-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_FI_BCF_MESS-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FINS_FI_BCF_MESS-LOGSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_FI_BCF_MESS-LOGSYSTEM.
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_FINS_FI_BCF_MESS_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
RLDNR TYPE STRING,
GJAHR TYPE STRING,
MESSFROM TYPE STRING,
MESSITEM TYPE STRING,
STEP TYPE STRING,
OLDSTEP TYPE STRING,
TIMESTAMP TYPE STRING,
RUNCHOICE TYPE STRING,
JOBNAME TYPE STRING,
STATUS TYPE STRING,
TYPE TYPE STRING,
ID TYPE STRING,
MESSNUMBER TYPE STRING,
MESSAGE TYPE STRING,
LOG_NO TYPE STRING,
LOG_MSG_NO TYPE STRING,
MESSAGE_V1 TYPE STRING,
MESSAGE_V2 TYPE STRING,
MESSAGE_V3 TYPE STRING,
MESSAGE_V4 TYPE STRING,
PARAMETERNAME TYPE STRING,
PARAMETERROW TYPE STRING,
FIELD TYPE STRING,
LOGSYSTEM TYPE STRING,
UNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FINS_FI_BCF_MESS_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_FINS_FI_BCF_MESS_STR-MANDT sy-vline 
WA_FINS_FI_BCF_MESS_STR-BUKRS sy-vline 
WA_FINS_FI_BCF_MESS_STR-RLDNR sy-vline 
WA_FINS_FI_BCF_MESS_STR-GJAHR sy-vline 
WA_FINS_FI_BCF_MESS_STR-MESSFROM sy-vline 
WA_FINS_FI_BCF_MESS_STR-MESSITEM sy-vline 
WA_FINS_FI_BCF_MESS_STR-STEP sy-vline 
WA_FINS_FI_BCF_MESS_STR-OLDSTEP sy-vline 
WA_FINS_FI_BCF_MESS_STR-TIMESTAMP sy-vline 
WA_FINS_FI_BCF_MESS_STR-RUNCHOICE sy-vline 
WA_FINS_FI_BCF_MESS_STR-JOBNAME sy-vline 
WA_FINS_FI_BCF_MESS_STR-STATUS sy-vline 
WA_FINS_FI_BCF_MESS_STR-TYPE sy-vline 
WA_FINS_FI_BCF_MESS_STR-ID sy-vline 
WA_FINS_FI_BCF_MESS_STR-MESSNUMBER sy-vline 
WA_FINS_FI_BCF_MESS_STR-MESSAGE sy-vline 
WA_FINS_FI_BCF_MESS_STR-LOG_NO sy-vline 
WA_FINS_FI_BCF_MESS_STR-LOG_MSG_NO sy-vline 
WA_FINS_FI_BCF_MESS_STR-MESSAGE_V1 sy-vline 
WA_FINS_FI_BCF_MESS_STR-MESSAGE_V2 sy-vline 
WA_FINS_FI_BCF_MESS_STR-MESSAGE_V3 sy-vline 
WA_FINS_FI_BCF_MESS_STR-MESSAGE_V4 sy-vline 
WA_FINS_FI_BCF_MESS_STR-PARAMETERNAME sy-vline 
WA_FINS_FI_BCF_MESS_STR-PARAMETERROW sy-vline 
WA_FINS_FI_BCF_MESS_STR-FIELD sy-vline 
WA_FINS_FI_BCF_MESS_STR-LOGSYSTEM sy-vline 
WA_FINS_FI_BCF_MESS_STR-UNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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