ABAP Select data from SAP table FAGL_S_RFCRDL10_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FAGL_S_RFCRDL10_ITEM 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 FAGL_S_RFCRDL10_ITEM. 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 FAGL_S_RFCRDL10_ITEM 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_FAGL_S_RFCRDL10_ITEM TYPE STANDARD TABLE OF FAGL_S_RFCRDL10_ITEM,
      WA_FAGL_S_RFCRDL10_ITEM TYPE FAGL_S_RFCRDL10_ITEM,
      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: <FAGL_S_RFCRDL10_ITEM> TYPE FAGL_S_RFCRDL10_ITEM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FAGL_S_RFCRDL10_ITEM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FAGL_S_RFCRDL10_ITEM
  INTO TABLE IT_FAGL_S_RFCRDL10_ITEM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAGL_S_RFCRDL10_ITEM
*  INTO TABLE @DATA(IT_FAGL_S_RFCRDL10_ITEM2).
*--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_FAGL_S_RFCRDL10_ITEM INDEX 1 INTO DATA(WA_FAGL_S_RFCRDL10_ITEM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FAGL_S_RFCRDL10_ITEM ASSIGNING <FAGL_S_RFCRDL10_ITEM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAGL_S_RFCRDL10_ITEM>-CCINS = 1.
<FAGL_S_RFCRDL10_ITEM>-CCNUM = 1.
<FAGL_S_RFCRDL10_ITEM>-BELNR = 1.
<FAGL_S_RFCRDL10_ITEM>-CRPUDATE = 1.
<FAGL_S_RFCRDL10_ITEM>-CRMATCHDT = 1.

ENDLOOP.

LOOP AT IT_FAGL_S_RFCRDL10_ITEM INTO WA_FAGL_S_RFCRDL10_ITEM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAGL_S_RFCRDL10_ITEM-ERLDAT, sy-vline,
  WA_FAGL_S_RFCRDL10_ITEM-CRAUTHNO, sy-vline,
  WA_FAGL_S_RFCRDL10_ITEM-CRDMBTR, sy-vline,
  WA_FAGL_S_RFCRDL10_ITEM-WTABG, sy-vline,
  WA_FAGL_S_RFCRDL10_ITEM-WTFREE, sy-vline,
  WA_FAGL_S_RFCRDL10_ITEM-CRSUPNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAGL_S_RFCRDL10_ITEM 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_FAGL_S_RFCRDL10_ITEM 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_FAGL_S_RFCRDL10_ITEM INTO WA_FAGL_S_RFCRDL10_ITEM.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_S_RFCRDL10_ITEM-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_S_RFCRDL10_ITEM-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field CRDMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_S_RFCRDL10_ITEM-CRDMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_S_RFCRDL10_ITEM-CRDMBTR.
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_FAGL_S_RFCRDL10_ITEM_STR, 
CCINS TYPE STRING,
CCNUM TYPE STRING,
BELNR TYPE STRING,
CRPUDATE TYPE STRING,
CRMATCHDT TYPE STRING,
ERLDAT TYPE STRING,
CRAUTHNO TYPE STRING,
CRDMBTR TYPE STRING,
WTABG TYPE STRING,
WTFREE TYPE STRING,
CRSUPNAM TYPE STRING,
KTEXT TYPE STRING,
HWAER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAGL_S_RFCRDL10_ITEM_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_FAGL_S_RFCRDL10_ITEM_STR-CCINS sy-vline 
WA_FAGL_S_RFCRDL10_ITEM_STR-CCNUM sy-vline 
WA_FAGL_S_RFCRDL10_ITEM_STR-BELNR sy-vline 
WA_FAGL_S_RFCRDL10_ITEM_STR-CRPUDATE sy-vline 
WA_FAGL_S_RFCRDL10_ITEM_STR-CRMATCHDT sy-vline 
WA_FAGL_S_RFCRDL10_ITEM_STR-ERLDAT sy-vline 
WA_FAGL_S_RFCRDL10_ITEM_STR-CRAUTHNO sy-vline 
WA_FAGL_S_RFCRDL10_ITEM_STR-CRDMBTR sy-vline 
WA_FAGL_S_RFCRDL10_ITEM_STR-WTABG sy-vline 
WA_FAGL_S_RFCRDL10_ITEM_STR-WTFREE sy-vline 
WA_FAGL_S_RFCRDL10_ITEM_STR-CRSUPNAM sy-vline 
WA_FAGL_S_RFCRDL10_ITEM_STR-KTEXT sy-vline 
WA_FAGL_S_RFCRDL10_ITEM_STR-HWAER sy-vline      INTO ld_text SEPARATED BY SPACE.

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