ABAP Select data from SAP table FXM_RP_SEL_PARAM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FXM_RP_SEL_PARAM
*  INTO TABLE @DATA(IT_FXM_RP_SEL_PARAM2).
*--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_FXM_RP_SEL_PARAM INDEX 1 INTO DATA(WA_FXM_RP_SEL_PARAM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FXM_RP_SEL_PARAM>-MANDT = 1.
<FXM_RP_SEL_PARAM>-RP_ID = 1.
<FXM_RP_SEL_PARAM>-VALUE_DATE = 1.
<FXM_RP_SEL_PARAM>-VALUE_DATE_DEF = 1.
<FXM_RP_SEL_PARAM>-ADDITIONAL_DAY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FXM_RP_SEL_PARAM-WORKING_DATE_CHECK, sy-vline,
  WA_FXM_RP_SEL_PARAM-WORKING_DATE_SHIFT, sy-vline,
  WA_FXM_RP_SEL_PARAM-VALUE_DATE_DETM_METH, sy-vline,
  WA_FXM_RP_SEL_PARAM-VALUE_DATE_SEL, sy-vline,
  WA_FXM_RP_SEL_PARAM-INSTRUMENT_CATEGORY, sy-vline,
  WA_FXM_RP_SEL_PARAM-AMOUNT_ROUNDING, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FXM_RP_SEL_PARAM 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_FXM_RP_SEL_PARAM 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_FXM_RP_SEL_PARAM INTO WA_FXM_RP_SEL_PARAM.


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

*Conversion exit ALPHA, internal->external for field COST_CENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FXM_RP_SEL_PARAM-COST_CENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FXM_RP_SEL_PARAM-COST_CENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field WBS_ELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_FXM_RP_SEL_PARAM-WBS_ELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FXM_RP_SEL_PARAM-WBS_ELEMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FXM_RP_SEL_PARAM-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FXM_RP_SEL_PARAM-SEGMENT.
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_FXM_RP_SEL_PARAM_STR, 
MANDT TYPE STRING,
RP_ID TYPE STRING,
VALUE_DATE TYPE STRING,
VALUE_DATE_DEF TYPE STRING,
ADDITIONAL_DAY TYPE STRING,
WORKING_DATE_CHECK TYPE STRING,
WORKING_DATE_SHIFT TYPE STRING,
VALUE_DATE_DETM_METH TYPE STRING,
VALUE_DATE_SEL TYPE STRING,
INSTRUMENT_CATEGORY TYPE STRING,
AMOUNT_ROUNDING TYPE STRING,
MIN_AMOUNT TYPE STRING,
MINAMT_CURRENCY TYPE STRING,
EXCHANGE_RATE_TYPE TYPE STRING,
CREATE_IN_STATUS TYPE STRING,
DESCRIPTION TYPE STRING,
PORTFOLIO TYPE STRING,
EXTERNAL_REF TYPE STRING,
ASSIGNMENT TYPE STRING,
INTERNAL_REF TYPE STRING,
CHARS TYPE STRING,
PROFIT_CENTER TYPE STRING,
COST_CENTER TYPE STRING,
WBS_ELEMENT TYPE STRING,
ON_BEHALF_OF_COMPANY TYPE STRING,
COUNTRY TYPE STRING,
SEGMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FXM_RP_SEL_PARAM_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_FXM_RP_SEL_PARAM_STR-MANDT sy-vline 
WA_FXM_RP_SEL_PARAM_STR-RP_ID sy-vline 
WA_FXM_RP_SEL_PARAM_STR-VALUE_DATE sy-vline 
WA_FXM_RP_SEL_PARAM_STR-VALUE_DATE_DEF sy-vline 
WA_FXM_RP_SEL_PARAM_STR-ADDITIONAL_DAY sy-vline 
WA_FXM_RP_SEL_PARAM_STR-WORKING_DATE_CHECK sy-vline 
WA_FXM_RP_SEL_PARAM_STR-WORKING_DATE_SHIFT sy-vline 
WA_FXM_RP_SEL_PARAM_STR-VALUE_DATE_DETM_METH sy-vline 
WA_FXM_RP_SEL_PARAM_STR-VALUE_DATE_SEL sy-vline 
WA_FXM_RP_SEL_PARAM_STR-INSTRUMENT_CATEGORY sy-vline 
WA_FXM_RP_SEL_PARAM_STR-AMOUNT_ROUNDING sy-vline 
WA_FXM_RP_SEL_PARAM_STR-MIN_AMOUNT sy-vline 
WA_FXM_RP_SEL_PARAM_STR-MINAMT_CURRENCY sy-vline 
WA_FXM_RP_SEL_PARAM_STR-EXCHANGE_RATE_TYPE sy-vline 
WA_FXM_RP_SEL_PARAM_STR-CREATE_IN_STATUS sy-vline 
WA_FXM_RP_SEL_PARAM_STR-DESCRIPTION sy-vline 
WA_FXM_RP_SEL_PARAM_STR-PORTFOLIO sy-vline 
WA_FXM_RP_SEL_PARAM_STR-EXTERNAL_REF sy-vline 
WA_FXM_RP_SEL_PARAM_STR-ASSIGNMENT sy-vline 
WA_FXM_RP_SEL_PARAM_STR-INTERNAL_REF sy-vline 
WA_FXM_RP_SEL_PARAM_STR-CHARS sy-vline 
WA_FXM_RP_SEL_PARAM_STR-PROFIT_CENTER sy-vline 
WA_FXM_RP_SEL_PARAM_STR-COST_CENTER sy-vline 
WA_FXM_RP_SEL_PARAM_STR-WBS_ELEMENT sy-vline 
WA_FXM_RP_SEL_PARAM_STR-ON_BEHALF_OF_COMPANY sy-vline 
WA_FXM_RP_SEL_PARAM_STR-COUNTRY sy-vline 
WA_FXM_RP_SEL_PARAM_STR-SEGMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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