ABAP Select data from SAP table FILA_GF_CLAS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FILA_GF_CLAS
*  INTO TABLE @DATA(IT_FILA_GF_CLAS2).
*--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_FILA_GF_CLAS INDEX 1 INTO DATA(WA_FILA_GF_CLAS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FILA_GF_CLAS>-CLASSOLD = 1.
<FILA_GF_CLAS>-XFARELOLD = 1.
<FILA_GF_CLAS>-CLASSNEW = 1.
<FILA_GF_CLAS>-AFABE = 1.
<FILA_GF_CLAS>-XFARELNEW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FILA_GF_CLAS-XTAKEOVER, sy-vline,
  WA_FILA_GF_CLAS-XSETPARMS, sy-vline,
  WA_FILA_GF_CLAS-ACCKEYS, sy-vline,
  WA_FILA_GF_CLAS-GROUPID, sy-vline,
  WA_FILA_GF_CLAS-ACCRULE, sy-vline,
  WA_FILA_GF_CLAS-CLASS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FILA_GF_CLAS 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_FILA_GF_CLAS 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_FILA_GF_CLAS INTO WA_FILA_GF_CLAS.


*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_FILA_GF_CLAS_STR, 
CLASSOLD TYPE STRING,
XFARELOLD TYPE STRING,
CLASSNEW TYPE STRING,
AFABE TYPE STRING,
XFARELNEW TYPE STRING,
XTAKEOVER TYPE STRING,
XSETPARMS TYPE STRING,
ACCKEYS TYPE STRING,
GROUPID TYPE STRING,
ACCRULE TYPE STRING,
CLASS TYPE STRING,
CLASSGROUP TYPE STRING,
ACCKEY1 TYPE STRING,
ACCKEY2 TYPE STRING,
ACCKEY3 TYPE STRING,
ACCKEY4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FILA_GF_CLAS_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_FILA_GF_CLAS_STR-CLASSOLD sy-vline 
WA_FILA_GF_CLAS_STR-XFARELOLD sy-vline 
WA_FILA_GF_CLAS_STR-CLASSNEW sy-vline 
WA_FILA_GF_CLAS_STR-AFABE sy-vline 
WA_FILA_GF_CLAS_STR-XFARELNEW sy-vline 
WA_FILA_GF_CLAS_STR-XTAKEOVER sy-vline 
WA_FILA_GF_CLAS_STR-XSETPARMS sy-vline 
WA_FILA_GF_CLAS_STR-ACCKEYS sy-vline 
WA_FILA_GF_CLAS_STR-GROUPID sy-vline 
WA_FILA_GF_CLAS_STR-ACCRULE sy-vline 
WA_FILA_GF_CLAS_STR-CLASS sy-vline 
WA_FILA_GF_CLAS_STR-CLASSGROUP sy-vline 
WA_FILA_GF_CLAS_STR-ACCKEY1 sy-vline 
WA_FILA_GF_CLAS_STR-ACCKEY2 sy-vline 
WA_FILA_GF_CLAS_STR-ACCKEY3 sy-vline 
WA_FILA_GF_CLAS_STR-ACCKEY4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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