ABAP Select data from SAP table BSSP_S_FXR_POSTING into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BSSP_S_FXR_POSTING
*  INTO TABLE @DATA(IT_BSSP_S_FXR_POSTING2).
*--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_BSSP_S_FXR_POSTING INDEX 1 INTO DATA(WA_BSSP_S_FXR_POSTING2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BSSP_S_FXR_POSTING>-BUKRS = 1.
<BSSP_S_FXR_POSTING>-BELNR = 1.
<BSSP_S_FXR_POSTING>-GJAHR = 1.
<BSSP_S_FXR_POSTING>-BUDAT = 1.
<BSSP_S_FXR_POSTING>-WAERS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BSSP_S_FXR_POSTING-KURSF, sy-vline,
  WA_BSSP_S_FXR_POSTING-KURSX, sy-vline,
  WA_BSSP_S_FXR_POSTING-RATE_TYPE, sy-vline,
  WA_BSSP_S_FXR_POSTING-FROM_CURR, sy-vline,
  WA_BSSP_S_FXR_POSTING-TO_CURRNCY, sy-vline,
  WA_BSSP_S_FXR_POSTING-VALID_FROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BSSP_S_FXR_POSTING 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_BSSP_S_FXR_POSTING 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_BSSP_S_FXR_POSTING INTO WA_BSSP_S_FXR_POSTING.


*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_BSSP_S_FXR_POSTING_STR, 
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUDAT TYPE STRING,
WAERS TYPE STRING,
KURSF TYPE STRING,
KURSX TYPE STRING,
RATE_TYPE TYPE STRING,
FROM_CURR TYPE STRING,
TO_CURRNCY TYPE STRING,
VALID_FROM TYPE STRING,
EXCH_RATE TYPE STRING,
PRCCAT TYPE STRING,
RUNID TYPE STRING,
MCA_DOCNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BSSP_S_FXR_POSTING_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_BSSP_S_FXR_POSTING_STR-BUKRS sy-vline 
WA_BSSP_S_FXR_POSTING_STR-BELNR sy-vline 
WA_BSSP_S_FXR_POSTING_STR-GJAHR sy-vline 
WA_BSSP_S_FXR_POSTING_STR-BUDAT sy-vline 
WA_BSSP_S_FXR_POSTING_STR-WAERS sy-vline 
WA_BSSP_S_FXR_POSTING_STR-KURSF sy-vline 
WA_BSSP_S_FXR_POSTING_STR-KURSX sy-vline 
WA_BSSP_S_FXR_POSTING_STR-RATE_TYPE sy-vline 
WA_BSSP_S_FXR_POSTING_STR-FROM_CURR sy-vline 
WA_BSSP_S_FXR_POSTING_STR-TO_CURRNCY sy-vline 
WA_BSSP_S_FXR_POSTING_STR-VALID_FROM sy-vline 
WA_BSSP_S_FXR_POSTING_STR-EXCH_RATE sy-vline 
WA_BSSP_S_FXR_POSTING_STR-PRCCAT sy-vline 
WA_BSSP_S_FXR_POSTING_STR-RUNID sy-vline 
WA_BSSP_S_FXR_POSTING_STR-MCA_DOCNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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