ABAP Select data from SAP table FAGL_RRI_CUST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FAGL_RRI_CUST 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_RRI_CUST. 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_RRI_CUST 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_RRI_CUST TYPE STANDARD TABLE OF FAGL_RRI_CUST,
      WA_FAGL_RRI_CUST TYPE FAGL_RRI_CUST,
      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_RRI_CUST> TYPE FAGL_RRI_CUST.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAGL_RRI_CUST
*  INTO TABLE @DATA(IT_FAGL_RRI_CUST2).
*--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_RRI_CUST INDEX 1 INTO DATA(WA_FAGL_RRI_CUST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAGL_RRI_CUST>-MANDT = 1.
<FAGL_RRI_CUST>-SONAM = 1.
<FAGL_RRI_CUST>-HOART = 1.
<FAGL_RRI_CUST>-SERNR = 1.
<FAGL_RRI_CUST>-RTOOL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAGL_RRI_CUST-RAPPL, sy-vline,
  WA_FAGL_RRI_CUST-RSUBC, sy-vline,
  WA_FAGL_RRI_CUST-ROTYP, sy-vline,
  WA_FAGL_RRI_CUST-RONAM, sy-vline,
  WA_FAGL_RRI_CUST-RDEST, sy-vline,
  WA_FAGL_RRI_CUST-RVARI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAGL_RRI_CUST 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_RRI_CUST 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_RRI_CUST INTO WA_FAGL_RRI_CUST.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FAGL_RRI_CUST_STR, 
MANDT TYPE STRING,
SONAM TYPE STRING,
HOART TYPE STRING,
SERNR TYPE STRING,
RTOOL TYPE STRING,
RAPPL TYPE STRING,
RSUBC TYPE STRING,
ROTYP TYPE STRING,
RONAM TYPE STRING,
RDEST TYPE STRING,
RVARI TYPE STRING,
ACTIVE TYPE STRING,
BADI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAGL_RRI_CUST_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_RRI_CUST_STR-MANDT sy-vline 
WA_FAGL_RRI_CUST_STR-SONAM sy-vline 
WA_FAGL_RRI_CUST_STR-HOART sy-vline 
WA_FAGL_RRI_CUST_STR-SERNR sy-vline 
WA_FAGL_RRI_CUST_STR-RTOOL sy-vline 
WA_FAGL_RRI_CUST_STR-RAPPL sy-vline 
WA_FAGL_RRI_CUST_STR-RSUBC sy-vline 
WA_FAGL_RRI_CUST_STR-ROTYP sy-vline 
WA_FAGL_RRI_CUST_STR-RONAM sy-vline 
WA_FAGL_RRI_CUST_STR-RDEST sy-vline 
WA_FAGL_RRI_CUST_STR-RVARI sy-vline 
WA_FAGL_RRI_CUST_STR-ACTIVE sy-vline 
WA_FAGL_RRI_CUST_STR-BADI sy-vline      INTO ld_text SEPARATED BY SPACE.

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