ABAP Select data from SAP table REEX_FM_POS_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REEX_FM_POS_DATA
*  INTO TABLE @DATA(IT_REEX_FM_POS_DATA2).
*--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_REEX_FM_POS_DATA INDEX 1 INTO DATA(WA_REEX_FM_POS_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REEX_FM_POS_DATA>-BUSINESSAREA = 1.
<REEX_FM_POS_DATA>-NETAMOUNT = 1.
<REEX_FM_POS_DATA>-GROSSAMOUNT = 1.
<REEX_FM_POS_DATA>-FUND = 1.
<REEX_FM_POS_DATA>-FUNDSCENTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REEX_FM_POS_DATA-COMMITMENTITEM, sy-vline,
  WA_REEX_FM_POS_DATA-FUNCTIONALAREA, sy-vline,
  WA_REEX_FM_POS_DATA-GRANTNUMBER, sy-vline,
  WA_REEX_FM_POS_DATA-MEASURE, sy-vline,
  WA_REEX_FM_POS_DATA-BUDGETPERIOD, sy-vline,
  WA_REEX_FM_POS_DATA-XPOSITION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REEX_FM_POS_DATA 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_REEX_FM_POS_DATA 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_REEX_FM_POS_DATA INTO WA_REEX_FM_POS_DATA.


*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 FMCIL, internal->external for field COMMITMENTITEM
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_REEX_FM_POS_DATA-COMMITMENTITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REEX_FM_POS_DATA-COMMITMENTITEM.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field ORDERID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REEX_FM_POS_DATA-ORDERID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REEX_FM_POS_DATA-ORDERID.
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_REEX_FM_POS_DATA_STR, 
BUSINESSAREA TYPE STRING,
NETAMOUNT TYPE STRING,
GROSSAMOUNT TYPE STRING,
FUND TYPE STRING,
FUNDSCENTER TYPE STRING,
COMMITMENTITEM TYPE STRING,
FUNCTIONALAREA TYPE STRING,
GRANTNUMBER TYPE STRING,
MEASURE TYPE STRING,
BUDGETPERIOD TYPE STRING,
XPOSITION TYPE STRING,
CURRENCY TYPE STRING,
POSLOCK TYPE STRING,
POSDUEDATE TYPE STRING,
IMKEY TYPE STRING,
DABRBEZ TYPE STRING,
SAKNR TYPE STRING,
WBS_ELEMENT TYPE STRING,
COSTCENTER TYPE STRING,
ORDERID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REEX_FM_POS_DATA_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_REEX_FM_POS_DATA_STR-BUSINESSAREA sy-vline 
WA_REEX_FM_POS_DATA_STR-NETAMOUNT sy-vline 
WA_REEX_FM_POS_DATA_STR-GROSSAMOUNT sy-vline 
WA_REEX_FM_POS_DATA_STR-FUND sy-vline 
WA_REEX_FM_POS_DATA_STR-FUNDSCENTER sy-vline 
WA_REEX_FM_POS_DATA_STR-COMMITMENTITEM sy-vline 
WA_REEX_FM_POS_DATA_STR-FUNCTIONALAREA sy-vline 
WA_REEX_FM_POS_DATA_STR-GRANTNUMBER sy-vline 
WA_REEX_FM_POS_DATA_STR-MEASURE sy-vline 
WA_REEX_FM_POS_DATA_STR-BUDGETPERIOD sy-vline 
WA_REEX_FM_POS_DATA_STR-XPOSITION sy-vline 
WA_REEX_FM_POS_DATA_STR-CURRENCY sy-vline 
WA_REEX_FM_POS_DATA_STR-POSLOCK sy-vline 
WA_REEX_FM_POS_DATA_STR-POSDUEDATE sy-vline 
WA_REEX_FM_POS_DATA_STR-IMKEY sy-vline 
WA_REEX_FM_POS_DATA_STR-DABRBEZ sy-vline 
WA_REEX_FM_POS_DATA_STR-SAKNR sy-vline 
WA_REEX_FM_POS_DATA_STR-WBS_ELEMENT sy-vline 
WA_REEX_FM_POS_DATA_STR-COSTCENTER sy-vline 
WA_REEX_FM_POS_DATA_STR-ORDERID sy-vline      INTO ld_text SEPARATED BY SPACE.

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