ABAP Select data from SAP table REEX_POSTING_CC_FIDATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP REEX_POSTING_CC_FIDATA 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_POSTING_CC_FIDATA. 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_POSTING_CC_FIDATA 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_POSTING_CC_FIDATA TYPE STANDARD TABLE OF REEX_POSTING_CC_FIDATA,
      WA_REEX_POSTING_CC_FIDATA TYPE REEX_POSTING_CC_FIDATA,
      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_POSTING_CC_FIDATA> TYPE REEX_POSTING_CC_FIDATA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REEX_POSTING_CC_FIDATA
*  INTO TABLE @DATA(IT_REEX_POSTING_CC_FIDATA2).
*--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_POSTING_CC_FIDATA INDEX 1 INTO DATA(WA_REEX_POSTING_CC_FIDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REEX_POSTING_CC_FIDATA>-FI_BELNR = 1.
<REEX_POSTING_CC_FIDATA>-FI_BUZEI = 1.
<REEX_POSTING_CC_FIDATA>-BSCHL = 1.
<REEX_POSTING_CC_FIDATA>-UMSKZ = 1.
<REEX_POSTING_CC_FIDATA>-MWSKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REEX_POSTING_CC_FIDATA-SHKZG, sy-vline,
  WA_REEX_POSTING_CC_FIDATA-BRUTTO, sy-vline,
  WA_REEX_POSTING_CC_FIDATA-WBRUTTO, sy-vline,
  WA_REEX_POSTING_CC_FIDATA-MWSTS, sy-vline,
  WA_REEX_POSTING_CC_FIDATA-WMWST, sy-vline,
  WA_REEX_POSTING_CC_FIDATA-HWAERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REEX_POSTING_CC_FIDATA 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_POSTING_CC_FIDATA 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_POSTING_CC_FIDATA INTO WA_REEX_POSTING_CC_FIDATA.


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

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

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REEX_POSTING_CC_FIDATA-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REEX_POSTING_CC_FIDATA-EBELN.
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_POSTING_CC_FIDATA_STR, 
FI_BELNR TYPE STRING,
FI_BUZEI TYPE STRING,
BSCHL TYPE STRING,
UMSKZ TYPE STRING,
MWSKZ TYPE STRING,
SHKZG TYPE STRING,
BRUTTO TYPE STRING,
WBRUTTO TYPE STRING,
MWSTS TYPE STRING,
WMWST TYPE STRING,
HWAERS TYPE STRING,
WAERS TYPE STRING,
AUGBL TYPE STRING,
TXJCD TYPE STRING,
TAXAMTINDETERMINABLE TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REEX_POSTING_CC_FIDATA_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_POSTING_CC_FIDATA_STR-FI_BELNR sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-FI_BUZEI sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-BSCHL sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-UMSKZ sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-MWSKZ sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-SHKZG sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-BRUTTO sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-WBRUTTO sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-MWSTS sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-WMWST sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-HWAERS sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-WAERS sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-AUGBL sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-TXJCD sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-TAXAMTINDETERMINABLE sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-EBELN sy-vline 
WA_REEX_POSTING_CC_FIDATA_STR-EBELP sy-vline      INTO ld_text SEPARATED BY SPACE.

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