ABAP Select data from SAP table FOAP_S_RFAVIS40 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FOAP_S_RFAVIS40 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 FOAP_S_RFAVIS40. 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 FOAP_S_RFAVIS40 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_FOAP_S_RFAVIS40 TYPE STANDARD TABLE OF FOAP_S_RFAVIS40,
      WA_FOAP_S_RFAVIS40 TYPE FOAP_S_RFAVIS40,
      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: <FOAP_S_RFAVIS40> TYPE FOAP_S_RFAVIS40.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FOAP_S_RFAVIS40.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FOAP_S_RFAVIS40
  INTO TABLE IT_FOAP_S_RFAVIS40.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FOAP_S_RFAVIS40
*  INTO TABLE @DATA(IT_FOAP_S_RFAVIS402).
*--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_FOAP_S_RFAVIS40 INDEX 1 INTO DATA(WA_FOAP_S_RFAVIS402).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FOAP_S_RFAVIS40 ASSIGNING <FOAP_S_RFAVIS40>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FOAP_S_RFAVIS40>-CHECKBOX = 1.
<FOAP_S_RFAVIS40>-BUKRS = 1.
<FOAP_S_RFAVIS40>-KONTO = 1.
<FOAP_S_RFAVIS40>-AVSID = 1.
<FOAP_S_RFAVIS40>-ERNAM = 1.

ENDLOOP.

LOOP AT IT_FOAP_S_RFAVIS40 INTO WA_FOAP_S_RFAVIS40.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FOAP_S_RFAVIS40-ERDAT, sy-vline,
  WA_FOAP_S_RFAVIS40-AVTXT, sy-vline,
  WA_FOAP_S_RFAVIS40-RWBTR, sy-vline,
  WA_FOAP_S_RFAVIS40-RWSKT, sy-vline,
  WA_FOAP_S_RFAVIS40-MSGTXT, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_FOAP_S_RFAVIS40 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_FOAP_S_RFAVIS40 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_FOAP_S_RFAVIS40 INTO WA_FOAP_S_RFAVIS40.


*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 KONTO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FOAP_S_RFAVIS40-KONTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOAP_S_RFAVIS40-KONTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field RWBTR
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_FOAP_S_RFAVIS40-RWBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOAP_S_RFAVIS40-RWBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field RWSKT
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_FOAP_S_RFAVIS40-RWSKT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOAP_S_RFAVIS40-RWSKT.
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_FOAP_S_RFAVIS40_STR, 
CHECKBOX TYPE STRING,
BUKRS TYPE STRING,
KONTO TYPE STRING,
AVSID TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
AVTXT TYPE STRING,
RWBTR TYPE STRING,
RWSKT TYPE STRING,
MSGTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FOAP_S_RFAVIS40_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_FOAP_S_RFAVIS40_STR-CHECKBOX sy-vline 
WA_FOAP_S_RFAVIS40_STR-BUKRS sy-vline 
WA_FOAP_S_RFAVIS40_STR-KONTO sy-vline 
WA_FOAP_S_RFAVIS40_STR-AVSID sy-vline 
WA_FOAP_S_RFAVIS40_STR-ERNAM sy-vline 
WA_FOAP_S_RFAVIS40_STR-ERDAT sy-vline 
WA_FOAP_S_RFAVIS40_STR-AVTXT sy-vline 
WA_FOAP_S_RFAVIS40_STR-RWBTR sy-vline 
WA_FOAP_S_RFAVIS40_STR-RWSKT sy-vline 
WA_FOAP_S_RFAVIS40_STR-MSGTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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