ABAP Select data from SAP table /SAPSRM/S_PDO_MDF_DO_EXR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPSRM/S_PDO_MDF_DO_EXR 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 /SAPSRM/S_PDO_MDF_DO_EXR. 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 /SAPSRM/S_PDO_MDF_DO_EXR 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_/SAPSRM/S_PDO_MDF_DO_EXR TYPE STANDARD TABLE OF /SAPSRM/S_PDO_MDF_DO_EXR,
      WA_/SAPSRM/S_PDO_MDF_DO_EXR TYPE /SAPSRM/S_PDO_MDF_DO_EXR,
      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: </SAPSRM/S_PDO_MDF_DO_EXR> TYPE /SAPSRM/S_PDO_MDF_DO_EXR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPSRM/S_PDO_MDF_DO_EXR
  INTO TABLE IT_/SAPSRM/S_PDO_MDF_DO_EXR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPSRM/S_PDO_MDF_DO_EXR
*  INTO TABLE @DATA(IT_/SAPSRM/S_PDO_MDF_DO_EXR2).
*--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_/SAPSRM/S_PDO_MDF_DO_EXR INDEX 1 INTO DATA(WA_/SAPSRM/S_PDO_MDF_DO_EXR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPSRM/S_PDO_MDF_DO_EXR ASSIGNING </SAPSRM/S_PDO_MDF_DO_EXR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPSRM/S_PDO_MDF_DO_EXR>-CLIENT = 1.
</SAPSRM/S_PDO_MDF_DO_EXR>-GUID = 1.
</SAPSRM/S_PDO_MDF_DO_EXR>-P_GUID = 1.
</SAPSRM/S_PDO_MDF_DO_EXR>-DEL_IND = 1.
</SAPSRM/S_PDO_MDF_DO_EXR>-REFCURR = 1.

ENDLOOP.

LOOP AT IT_/SAPSRM/S_PDO_MDF_DO_EXR INTO WA_/SAPSRM/S_PDO_MDF_DO_EXR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPSRM/S_PDO_MDF_DO_EXR-TARGETCURR, sy-vline,
  WA_/SAPSRM/S_PDO_MDF_DO_EXR-FIXED, sy-vline,
  WA_/SAPSRM/S_PDO_MDF_DO_EXR-EXCH_RATE, sy-vline,
  WA_/SAPSRM/S_PDO_MDF_DO_EXR-VALUTA_DATE, sy-vline,
  WA_/SAPSRM/S_PDO_MDF_DO_EXR-RATE_USE_IND, sy-vline,
  WA_/SAPSRM/S_PDO_MDF_DO_EXR-THRESH_FROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPSRM/S_PDO_MDF_DO_EXR 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_/SAPSRM/S_PDO_MDF_DO_EXR 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_/SAPSRM/S_PDO_MDF_DO_EXR INTO WA_/SAPSRM/S_PDO_MDF_DO_EXR.


*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 EXCR1, internal->external for field EXCH_RATE
CALL FUNCTION 'CONVERSION_EXIT_EXCR1_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSRM/S_PDO_MDF_DO_EXR-EXCH_RATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSRM/S_PDO_MDF_DO_EXR-EXCH_RATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCR1, internal->external for field THRESH_FROM
CALL FUNCTION 'CONVERSION_EXIT_EXCR1_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSRM/S_PDO_MDF_DO_EXR-THRESH_FROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSRM/S_PDO_MDF_DO_EXR-THRESH_FROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCR1, internal->external for field THRESH_TO
CALL FUNCTION 'CONVERSION_EXIT_EXCR1_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSRM/S_PDO_MDF_DO_EXR-THRESH_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSRM/S_PDO_MDF_DO_EXR-THRESH_TO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field QUOT_EVAL_TIME
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSRM/S_PDO_MDF_DO_EXR-QUOT_EVAL_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSRM/S_PDO_MDF_DO_EXR-QUOT_EVAL_TIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCR1, internal->external for field REF_EXCH_RATE
CALL FUNCTION 'CONVERSION_EXIT_EXCR1_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSRM/S_PDO_MDF_DO_EXR-REF_EXCH_RATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSRM/S_PDO_MDF_DO_EXR-REF_EXCH_RATE.
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_/SAPSRM/S_PDO_MDF_DO_EXR_STR, 
CLIENT TYPE STRING,
GUID TYPE STRING,
P_GUID TYPE STRING,
DEL_IND TYPE STRING,
REFCURR TYPE STRING,
TARGETCURR TYPE STRING,
FIXED TYPE STRING,
EXCH_RATE TYPE STRING,
VALUTA_DATE TYPE STRING,
RATE_USE_IND TYPE STRING,
THRESH_FROM TYPE STRING,
THRESH_TO TYPE STRING,
SHORT_TEXT_DESCRIPTION TYPE STRING,
LONG_TEXT_DESCRIPTION TYPE STRING,
QUOT_EVAL_TIME TYPE STRING,
CURR_COND_DT TYPE STRING,
REF_EXCH_RATE TYPE STRING,
NOTATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPSRM/S_PDO_MDF_DO_EXR_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_/SAPSRM/S_PDO_MDF_DO_EXR_STR-CLIENT sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-GUID sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-P_GUID sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-DEL_IND sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-REFCURR sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-TARGETCURR sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-FIXED sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-EXCH_RATE sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-VALUTA_DATE sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-RATE_USE_IND sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-THRESH_FROM sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-THRESH_TO sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-SHORT_TEXT_DESCRIPTION sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-LONG_TEXT_DESCRIPTION sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-QUOT_EVAL_TIME sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-CURR_COND_DT sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-REF_EXCH_RATE sy-vline 
WA_/SAPSRM/S_PDO_MDF_DO_EXR_STR-NOTATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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