ABAP Select data from SAP table FEB_AVIR_EXTD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FEB_AVIR_EXTD
*  INTO TABLE @DATA(IT_FEB_AVIR_EXTD2).
*--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_FEB_AVIR_EXTD INDEX 1 INTO DATA(WA_FEB_AVIR_EXTD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FEB_AVIR_EXTD>-MANDT = 1.
<FEB_AVIR_EXTD>-BUKRS = 1.
<FEB_AVIR_EXTD>-KOART = 1.
<FEB_AVIR_EXTD>-KONTO = 1.
<FEB_AVIR_EXTD>-AVSID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FEB_AVIR_EXTD-AVSPO, sy-vline,
  WA_FEB_AVIR_EXTD-AVSUP, sy-vline,
  WA_FEB_AVIR_EXTD-XREF3, sy-vline,
  WA_FEB_AVIR_EXTD-SGTXT, sy-vline,
  WA_FEB_AVIR_EXTD-ZUONR, sy-vline,
  WA_FEB_AVIR_EXTD-ZLSPR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FEB_AVIR_EXTD 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_FEB_AVIR_EXTD 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_FEB_AVIR_EXTD INTO WA_FEB_AVIR_EXTD.


*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_FEB_AVIR_EXTD-KONTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FEB_AVIR_EXTD-KONTO.
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_FEB_AVIR_EXTD_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
KOART TYPE STRING,
KONTO TYPE STRING,
AVSID TYPE STRING,
AVSPO TYPE STRING,
AVSUP TYPE STRING,
XREF3 TYPE STRING,
SGTXT TYPE STRING,
ZUONR TYPE STRING,
ZLSPR TYPE STRING,
MANSP TYPE STRING,
KUKEY TYPE STRING,
ESNUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FEB_AVIR_EXTD_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_FEB_AVIR_EXTD_STR-MANDT sy-vline 
WA_FEB_AVIR_EXTD_STR-BUKRS sy-vline 
WA_FEB_AVIR_EXTD_STR-KOART sy-vline 
WA_FEB_AVIR_EXTD_STR-KONTO sy-vline 
WA_FEB_AVIR_EXTD_STR-AVSID sy-vline 
WA_FEB_AVIR_EXTD_STR-AVSPO sy-vline 
WA_FEB_AVIR_EXTD_STR-AVSUP sy-vline 
WA_FEB_AVIR_EXTD_STR-XREF3 sy-vline 
WA_FEB_AVIR_EXTD_STR-SGTXT sy-vline 
WA_FEB_AVIR_EXTD_STR-ZUONR sy-vline 
WA_FEB_AVIR_EXTD_STR-ZLSPR sy-vline 
WA_FEB_AVIR_EXTD_STR-MANSP sy-vline 
WA_FEB_AVIR_EXTD_STR-KUKEY sy-vline 
WA_FEB_AVIR_EXTD_STR-ESNUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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