ABAP Select data from SAP table REEXC_GLACCT_FI_X into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP REEXC_GLACCT_FI_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 REEXC_GLACCT_FI_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 REEXC_GLACCT_FI_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_REEXC_GLACCT_FI_X TYPE STANDARD TABLE OF REEXC_GLACCT_FI_X,
      WA_REEXC_GLACCT_FI_X TYPE REEXC_GLACCT_FI_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: <REEXC_GLACCT_FI_X> TYPE REEXC_GLACCT_FI_X.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REEXC_GLACCT_FI_X
*  INTO TABLE @DATA(IT_REEXC_GLACCT_FI_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_REEXC_GLACCT_FI_X INDEX 1 INTO DATA(WA_REEXC_GLACCT_FI_X2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REEXC_GLACCT_FI_X>-MANDT = 1.
<REEXC_GLACCT_FI_X>-KTOPL = 1.
<REEXC_GLACCT_FI_X>-SAKNR = 1.
<REEXC_GLACCT_FI_X>-XBILK = 1.
<REEXC_GLACCT_FI_X>-SAKAN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REEXC_GLACCT_FI_X-BILKT, sy-vline,
  WA_REEXC_GLACCT_FI_X-ERDAT, sy-vline,
  WA_REEXC_GLACCT_FI_X-ERNAM, sy-vline,
  WA_REEXC_GLACCT_FI_X-GVTYP, sy-vline,
  WA_REEXC_GLACCT_FI_X-KTOKS, sy-vline,
  WA_REEXC_GLACCT_FI_X-MUSTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REEXC_GLACCT_FI_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_REEXC_GLACCT_FI_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_REEXC_GLACCT_FI_X INTO WA_REEXC_GLACCT_FI_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 SAKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REEXC_GLACCT_FI_X-SAKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REEXC_GLACCT_FI_X-SAKNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_REEXC_GLACCT_FI_X-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REEXC_GLACCT_FI_X-SPRAS.
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_REEXC_GLACCT_FI_X_STR, 
MANDT TYPE STRING,
KTOPL TYPE STRING,
SAKNR TYPE STRING,
XBILK TYPE STRING,
SAKAN TYPE STRING,
BILKT TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
GVTYP TYPE STRING,
KTOKS TYPE STRING,
MUSTR TYPE STRING,
VBUND TYPE STRING,
XLOEV TYPE STRING,
XSPEA TYPE STRING,
XSPEB TYPE STRING,
XSPEP TYPE STRING,
MCOD1 TYPE STRING,
FUNC_AREA TYPE STRING,
GLACCOUNT_TYPE TYPE STRING,
GLACCOUNT_SUBTYPE TYPE STRING,
MAIN_SAKNR TYPE STRING,
LAST_CHANGED_TS TYPE STRING,
SPRAS TYPE STRING,
TXT20 TYPE STRING,
TXT50 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REEXC_GLACCT_FI_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_REEXC_GLACCT_FI_X_STR-MANDT sy-vline 
WA_REEXC_GLACCT_FI_X_STR-KTOPL sy-vline 
WA_REEXC_GLACCT_FI_X_STR-SAKNR sy-vline 
WA_REEXC_GLACCT_FI_X_STR-XBILK sy-vline 
WA_REEXC_GLACCT_FI_X_STR-SAKAN sy-vline 
WA_REEXC_GLACCT_FI_X_STR-BILKT sy-vline 
WA_REEXC_GLACCT_FI_X_STR-ERDAT sy-vline 
WA_REEXC_GLACCT_FI_X_STR-ERNAM sy-vline 
WA_REEXC_GLACCT_FI_X_STR-GVTYP sy-vline 
WA_REEXC_GLACCT_FI_X_STR-KTOKS sy-vline 
WA_REEXC_GLACCT_FI_X_STR-MUSTR sy-vline 
WA_REEXC_GLACCT_FI_X_STR-VBUND sy-vline 
WA_REEXC_GLACCT_FI_X_STR-XLOEV sy-vline 
WA_REEXC_GLACCT_FI_X_STR-XSPEA sy-vline 
WA_REEXC_GLACCT_FI_X_STR-XSPEB sy-vline 
WA_REEXC_GLACCT_FI_X_STR-XSPEP sy-vline 
WA_REEXC_GLACCT_FI_X_STR-MCOD1 sy-vline 
WA_REEXC_GLACCT_FI_X_STR-FUNC_AREA sy-vline 
WA_REEXC_GLACCT_FI_X_STR-GLACCOUNT_TYPE sy-vline 
WA_REEXC_GLACCT_FI_X_STR-GLACCOUNT_SUBTYPE sy-vline 
WA_REEXC_GLACCT_FI_X_STR-MAIN_SAKNR sy-vline 
WA_REEXC_GLACCT_FI_X_STR-LAST_CHANGED_TS sy-vline 
WA_REEXC_GLACCT_FI_X_STR-SPRAS sy-vline 
WA_REEXC_GLACCT_FI_X_STR-TXT20 sy-vline 
WA_REEXC_GLACCT_FI_X_STR-TXT50 sy-vline      INTO ld_text SEPARATED BY SPACE.

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