ABAP Select data from SAP table FBS_SX_SKAT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FBS_SX_SKAT
*  INTO TABLE @DATA(IT_FBS_SX_SKAT2).
*--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_FBS_SX_SKAT INDEX 1 INTO DATA(WA_FBS_SX_SKAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FBS_SX_SKAT>-CONTROL = 1.
<FBS_SX_SKAT>-DB_ACTION = 1.
<FBS_SX_SKAT>-COMPL_TRANSMISSION = 1.
<FBS_SX_SKAT>-KEYY = 1.
<FBS_SX_SKAT>-KTOPL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FBS_SX_SKAT-SAKNR, sy-vline,
  WA_FBS_SX_SKAT-SPRAS, sy-vline,
  WA_FBS_SX_SKAT-SKAT, sy-vline,
  WA_FBS_SX_SKAT-KEYY, sy-vline,
  WA_FBS_SX_SKAT-KTOPL, sy-vline,
  WA_FBS_SX_SKAT-SAKNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FBS_SX_SKAT 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_FBS_SX_SKAT 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_FBS_SX_SKAT INTO WA_FBS_SX_SKAT.


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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_FBS_SX_SKAT-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FBS_SX_SKAT-SPRAS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_FBS_SX_SKAT-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FBS_SX_SKAT-SPRAS.
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_FBS_SX_SKAT_STR, 
CONTROL TYPE STRING,
DB_ACTION TYPE STRING,
COMPL_TRANSMISSION TYPE STRING,
KEYY TYPE STRING,
KTOPL TYPE STRING,
SAKNR TYPE STRING,
SPRAS TYPE STRING,
SKAT TYPE STRING,
KEYY TYPE STRING,
KTOPL TYPE STRING,
SAKNR TYPE STRING,
SPRAS TYPE STRING,
DATA TYPE STRING,
TXT20 TYPE STRING,
TXT50 TYPE STRING,
ACTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FBS_SX_SKAT_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_FBS_SX_SKAT_STR-CONTROL sy-vline 
WA_FBS_SX_SKAT_STR-DB_ACTION sy-vline 
WA_FBS_SX_SKAT_STR-COMPL_TRANSMISSION sy-vline 
WA_FBS_SX_SKAT_STR-KEYY sy-vline 
WA_FBS_SX_SKAT_STR-KTOPL sy-vline 
WA_FBS_SX_SKAT_STR-SAKNR sy-vline 
WA_FBS_SX_SKAT_STR-SPRAS sy-vline 
WA_FBS_SX_SKAT_STR-SKAT sy-vline 
WA_FBS_SX_SKAT_STR-KEYY sy-vline 
WA_FBS_SX_SKAT_STR-KTOPL sy-vline 
WA_FBS_SX_SKAT_STR-SAKNR sy-vline 
WA_FBS_SX_SKAT_STR-SPRAS sy-vline 
WA_FBS_SX_SKAT_STR-DATA sy-vline 
WA_FBS_SX_SKAT_STR-TXT20 sy-vline 
WA_FBS_SX_SKAT_STR-TXT50 sy-vline 
WA_FBS_SX_SKAT_STR-ACTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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