ABAP Select data from SAP table RFBILA_ALV_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFBILA_ALV_DATA
*  INTO TABLE @DATA(IT_RFBILA_ALV_DATA2).
*--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_RFBILA_ALV_DATA INDEX 1 INTO DATA(WA_RFBILA_ALV_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFBILA_ALV_DATA>-CHANGID = 1.
<RFBILA_ALV_DATA>-PARENT = 1.
<RFBILA_ALV_DATA>-ID = 1.
<RFBILA_ALV_DATA>-ERGSL = 1.
<RFBILA_ALV_DATA>-RLDNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFBILA_ALV_DATA-RRCTY, sy-vline,
  WA_RFBILA_ALV_DATA-RVERS, sy-vline,
  WA_RFBILA_ALV_DATA-CURTP, sy-vline,
  WA_RFBILA_ALV_DATA-KTOPL, sy-vline,
  WA_RFBILA_ALV_DATA-RACCT, sy-vline,
  WA_RFBILA_ALV_DATA-KKTPL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFBILA_ALV_DATA 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_RFBILA_ALV_DATA 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_RFBILA_ALV_DATA INTO WA_RFBILA_ALV_DATA.


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

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

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

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

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

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

*Conversion exit AC172, internal->external for field SALDO
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_RFBILA_ALV_DATA-SALDO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFBILA_ALV_DATA-SALDO.
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_RFBILA_ALV_DATA_STR, 
CHANGID TYPE STRING,
PARENT TYPE STRING,
ID TYPE STRING,
ERGSL TYPE STRING,
RLDNR TYPE STRING,
RRCTY TYPE STRING,
RVERS TYPE STRING,
CURTP TYPE STRING,
KTOPL TYPE STRING,
RACCT TYPE STRING,
KKTPL TYPE STRING,
BILKT TYPE STRING,
KTOP2 TYPE STRING,
ALTKT TYPE STRING,
RBUKRS TYPE STRING,
RBUSA TYPE STRING,
RFAREA TYPE STRING,
WAERS TYPE STRING,
PERIOD_SIGN TYPE STRING,
RYEAR TYPE STRING,
POPER TYPE STRING,
SALDO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFBILA_ALV_DATA_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_RFBILA_ALV_DATA_STR-CHANGID sy-vline 
WA_RFBILA_ALV_DATA_STR-PARENT sy-vline 
WA_RFBILA_ALV_DATA_STR-ID sy-vline 
WA_RFBILA_ALV_DATA_STR-ERGSL sy-vline 
WA_RFBILA_ALV_DATA_STR-RLDNR sy-vline 
WA_RFBILA_ALV_DATA_STR-RRCTY sy-vline 
WA_RFBILA_ALV_DATA_STR-RVERS sy-vline 
WA_RFBILA_ALV_DATA_STR-CURTP sy-vline 
WA_RFBILA_ALV_DATA_STR-KTOPL sy-vline 
WA_RFBILA_ALV_DATA_STR-RACCT sy-vline 
WA_RFBILA_ALV_DATA_STR-KKTPL sy-vline 
WA_RFBILA_ALV_DATA_STR-BILKT sy-vline 
WA_RFBILA_ALV_DATA_STR-KTOP2 sy-vline 
WA_RFBILA_ALV_DATA_STR-ALTKT sy-vline 
WA_RFBILA_ALV_DATA_STR-RBUKRS sy-vline 
WA_RFBILA_ALV_DATA_STR-RBUSA sy-vline 
WA_RFBILA_ALV_DATA_STR-RFAREA sy-vline 
WA_RFBILA_ALV_DATA_STR-WAERS sy-vline 
WA_RFBILA_ALV_DATA_STR-PERIOD_SIGN sy-vline 
WA_RFBILA_ALV_DATA_STR-RYEAR sy-vline 
WA_RFBILA_ALV_DATA_STR-POPER sy-vline 
WA_RFBILA_ALV_DATA_STR-SALDO sy-vline      INTO ld_text SEPARATED BY SPACE.

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