ABAP Select data from SAP table REXCFR_CODATA_X into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP REXCFR_CODATA_X 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_CODATA_X. 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_CODATA_X 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_CODATA_X TYPE STANDARD TABLE OF REXCFR_CODATA_X,
      WA_REXCFR_CODATA_X TYPE REXCFR_CODATA_X,
      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_CODATA_X> TYPE REXCFR_CODATA_X.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REXCFR_CODATA_X
*  INTO TABLE @DATA(IT_REXCFR_CODATA_X2).
*--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_CODATA_X INDEX 1 INTO DATA(WA_REXCFR_CODATA_X2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REXCFR_CODATA_X>-OBJNR = 1.
<REXCFR_CODATA_X>-VALTYPE = 1.
<REXCFR_CODATA_X>-COSTELEMENT = 1.
<REXCFR_CODATA_X>-DCINDICATOR = 1.
<REXCFR_CODATA_X>-FISCYEAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REXCFR_CODATA_X-PSTNGPERIOD, sy-vline,
  WA_REXCFR_CODATA_X-FUND, sy-vline,
  WA_REXCFR_CODATA_X-FUNDSCENTER, sy-vline,
  WA_REXCFR_CODATA_X-COMMITMENTITEM, sy-vline,
  WA_REXCFR_CODATA_X-FUNCTIONALAREA, sy-vline,
  WA_REXCFR_CODATA_X-GRANTNUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REXCFR_CODATA_X 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_CODATA_X 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_CODATA_X INTO WA_REXCFR_CODATA_X.


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

*Conversion exit GJAHR, internal->external for field FISCYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_REXCFR_CODATA_X-FISCYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXCFR_CODATA_X-FISCYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_REXCFR_CODATA_X-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXCFR_CODATA_X-POSID.
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_CODATA_X_STR, 
OBJNR TYPE STRING,
VALTYPE TYPE STRING,
COSTELEMENT TYPE STRING,
DCINDICATOR TYPE STRING,
FISCYEAR TYPE STRING,
PSTNGPERIOD TYPE STRING,
FUND TYPE STRING,
FUNDSCENTER TYPE STRING,
COMMITMENTITEM TYPE STRING,
FUNCTIONALAREA TYPE STRING,
GRANTNUMBER TYPE STRING,
MEASURE TYPE STRING,
BUDGETPERIOD TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
PERCENTAGE TYPE STRING,
OBJNR_CC TYPE STRING,
WRTTP TYPE STRING,
GJAHR TYPE STRING,
LEDNR TYPE STRING,
VERSN TYPE STRING,
KSTAR TYPE STRING,
HRKFT TYPE STRING,
VRGNG TYPE STRING,
VBUND TYPE STRING,
PARGB TYPE STRING,
BEKNZ TYPE STRING,
TWAER TYPE STRING,
PERBL TYPE STRING,
IDENT TYPE STRING,
BUKRS TYPE STRING,
SWENR TYPE STRING,
SGRNR TYPE STRING,
SGENR TYPE STRING,
SMENR TYPE STRING,
RECNNR TYPE STRING,
SNKSL TYPE STRING,
SEMPSL TYPE STRING,
DABRBZ TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
POSID TYPE STRING,
OBJTYPE TYPE STRING,
AOIDENT TYPE STRING,
XCOSTELEMENT TYPE STRING,
OBJTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REXCFR_CODATA_X_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_CODATA_X_STR-OBJNR sy-vline 
WA_REXCFR_CODATA_X_STR-VALTYPE sy-vline 
WA_REXCFR_CODATA_X_STR-COSTELEMENT sy-vline 
WA_REXCFR_CODATA_X_STR-DCINDICATOR sy-vline 
WA_REXCFR_CODATA_X_STR-FISCYEAR sy-vline 
WA_REXCFR_CODATA_X_STR-PSTNGPERIOD sy-vline 
WA_REXCFR_CODATA_X_STR-FUND sy-vline 
WA_REXCFR_CODATA_X_STR-FUNDSCENTER sy-vline 
WA_REXCFR_CODATA_X_STR-COMMITMENTITEM sy-vline 
WA_REXCFR_CODATA_X_STR-FUNCTIONALAREA sy-vline 
WA_REXCFR_CODATA_X_STR-GRANTNUMBER sy-vline 
WA_REXCFR_CODATA_X_STR-MEASURE sy-vline 
WA_REXCFR_CODATA_X_STR-BUDGETPERIOD sy-vline 
WA_REXCFR_CODATA_X_STR-AMOUNT sy-vline 
WA_REXCFR_CODATA_X_STR-CURRENCY sy-vline 
WA_REXCFR_CODATA_X_STR-PERCENTAGE sy-vline 
WA_REXCFR_CODATA_X_STR-OBJNR_CC sy-vline 
WA_REXCFR_CODATA_X_STR-WRTTP sy-vline 
WA_REXCFR_CODATA_X_STR-GJAHR sy-vline 
WA_REXCFR_CODATA_X_STR-LEDNR sy-vline 
WA_REXCFR_CODATA_X_STR-VERSN sy-vline 
WA_REXCFR_CODATA_X_STR-KSTAR sy-vline 
WA_REXCFR_CODATA_X_STR-HRKFT sy-vline 
WA_REXCFR_CODATA_X_STR-VRGNG sy-vline 
WA_REXCFR_CODATA_X_STR-VBUND sy-vline 
WA_REXCFR_CODATA_X_STR-PARGB sy-vline 
WA_REXCFR_CODATA_X_STR-BEKNZ sy-vline 
WA_REXCFR_CODATA_X_STR-TWAER sy-vline 
WA_REXCFR_CODATA_X_STR-PERBL sy-vline 
WA_REXCFR_CODATA_X_STR-IDENT sy-vline 
WA_REXCFR_CODATA_X_STR-BUKRS sy-vline 
WA_REXCFR_CODATA_X_STR-SWENR sy-vline 
WA_REXCFR_CODATA_X_STR-SGRNR sy-vline 
WA_REXCFR_CODATA_X_STR-SGENR sy-vline 
WA_REXCFR_CODATA_X_STR-SMENR sy-vline 
WA_REXCFR_CODATA_X_STR-RECNNR sy-vline 
WA_REXCFR_CODATA_X_STR-SNKSL sy-vline 
WA_REXCFR_CODATA_X_STR-SEMPSL sy-vline 
WA_REXCFR_CODATA_X_STR-DABRBZ sy-vline 
WA_REXCFR_CODATA_X_STR-KOKRS sy-vline 
WA_REXCFR_CODATA_X_STR-KOSTL sy-vline 
WA_REXCFR_CODATA_X_STR-AUFNR sy-vline 
WA_REXCFR_CODATA_X_STR-POSID sy-vline 
WA_REXCFR_CODATA_X_STR-OBJTYPE sy-vline 
WA_REXCFR_CODATA_X_STR-AOIDENT sy-vline 
WA_REXCFR_CODATA_X_STR-XCOSTELEMENT sy-vline 
WA_REXCFR_CODATA_X_STR-OBJTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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