ABAP Select data from SAP table REXCFR_DISTRIB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REXCFR_DISTRIB
*  INTO TABLE @DATA(IT_REXCFR_DISTRIB2).
*--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_REXCFR_DISTRIB INDEX 1 INTO DATA(WA_REXCFR_DISTRIB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REXCFR_DISTRIB>-SETTL_GUID = 1.
<REXCFR_DISTRIB>-BUKRS = 1.
<REXCFR_DISTRIB>-SU_INTRENO = 1.
<REXCFR_DISTRIB>-SU_OBJNR = 1.
<REXCFR_DISTRIB>-RO_INTRENO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REXCFR_DISTRIB-RO_OBJNR, sy-vline,
  WA_REXCFR_DISTRIB-APPORTVALUESU, sy-vline,
  WA_REXCFR_DISTRIB-APPORTVALUERO, sy-vline,
  WA_REXCFR_DISTRIB-APPORTVALUEOPT_S, sy-vline,
  WA_REXCFR_DISTRIB-WKG001, sy-vline,
  WA_REXCFR_DISTRIB-WKG002, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REXCFR_DISTRIB 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_REXCFR_DISTRIB 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_REXCFR_DISTRIB INTO WA_REXCFR_DISTRIB.


*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 REDAT, internal->external for field PTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_REXCFR_DISTRIB-PTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXCFR_DISTRIB-PTO.
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_REXCFR_DISTRIB_STR, 
SETTL_GUID TYPE STRING,
BUKRS TYPE STRING,
SU_INTRENO TYPE STRING,
SU_OBJNR TYPE STRING,
RO_INTRENO TYPE STRING,
RO_OBJNR TYPE STRING,
APPORTVALUESU TYPE STRING,
APPORTVALUERO TYPE STRING,
APPORTVALUEOPT_S TYPE STRING,
WKG001 TYPE STRING,
WKG002 TYPE STRING,
WKG003 TYPE STRING,
WKG004 TYPE STRING,
WKG005 TYPE STRING,
WKG006 TYPE STRING,
WKG007 TYPE STRING,
WKG008 TYPE STRING,
WKG009 TYPE STRING,
WKG010 TYPE STRING,
WKG011 TYPE STRING,
WKG012 TYPE STRING,
WKG013 TYPE STRING,
WKG014 TYPE STRING,
WKG015 TYPE STRING,
WKG016 TYPE STRING,
WKGSUM TYPE STRING,
CURRENCY TYPE STRING,
PFROM TYPE STRING,
PTO TYPE STRING,
PLENGTH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REXCFR_DISTRIB_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_REXCFR_DISTRIB_STR-SETTL_GUID sy-vline 
WA_REXCFR_DISTRIB_STR-BUKRS sy-vline 
WA_REXCFR_DISTRIB_STR-SU_INTRENO sy-vline 
WA_REXCFR_DISTRIB_STR-SU_OBJNR sy-vline 
WA_REXCFR_DISTRIB_STR-RO_INTRENO sy-vline 
WA_REXCFR_DISTRIB_STR-RO_OBJNR sy-vline 
WA_REXCFR_DISTRIB_STR-APPORTVALUESU sy-vline 
WA_REXCFR_DISTRIB_STR-APPORTVALUERO sy-vline 
WA_REXCFR_DISTRIB_STR-APPORTVALUEOPT_S sy-vline 
WA_REXCFR_DISTRIB_STR-WKG001 sy-vline 
WA_REXCFR_DISTRIB_STR-WKG002 sy-vline 
WA_REXCFR_DISTRIB_STR-WKG003 sy-vline 
WA_REXCFR_DISTRIB_STR-WKG004 sy-vline 
WA_REXCFR_DISTRIB_STR-WKG005 sy-vline 
WA_REXCFR_DISTRIB_STR-WKG006 sy-vline 
WA_REXCFR_DISTRIB_STR-WKG007 sy-vline 
WA_REXCFR_DISTRIB_STR-WKG008 sy-vline 
WA_REXCFR_DISTRIB_STR-WKG009 sy-vline 
WA_REXCFR_DISTRIB_STR-WKG010 sy-vline 
WA_REXCFR_DISTRIB_STR-WKG011 sy-vline 
WA_REXCFR_DISTRIB_STR-WKG012 sy-vline 
WA_REXCFR_DISTRIB_STR-WKG013 sy-vline 
WA_REXCFR_DISTRIB_STR-WKG014 sy-vline 
WA_REXCFR_DISTRIB_STR-WKG015 sy-vline 
WA_REXCFR_DISTRIB_STR-WKG016 sy-vline 
WA_REXCFR_DISTRIB_STR-WKGSUM sy-vline 
WA_REXCFR_DISTRIB_STR-CURRENCY sy-vline 
WA_REXCFR_DISTRIB_STR-PFROM sy-vline 
WA_REXCFR_DISTRIB_STR-PTO sy-vline 
WA_REXCFR_DISTRIB_STR-PLENGTH sy-vline      INTO ld_text SEPARATED BY SPACE.

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