ABAP Select data from SAP table FEH_TEST_SCUSTOM_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FEH_TEST_SCUSTOM_S
*  INTO TABLE @DATA(IT_FEH_TEST_SCUSTOM_S2).
*--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_FEH_TEST_SCUSTOM_S INDEX 1 INTO DATA(WA_FEH_TEST_SCUSTOM_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FEH_TEST_SCUSTOM_S>-MANDT = 1.
<FEH_TEST_SCUSTOM_S>-ID = 1.
<FEH_TEST_SCUSTOM_S>-NAME = 1.
<FEH_TEST_SCUSTOM_S>-FORM = 1.
<FEH_TEST_SCUSTOM_S>-STREET = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FEH_TEST_SCUSTOM_S-POSTBOX, sy-vline,
  WA_FEH_TEST_SCUSTOM_S-POSTCODE, sy-vline,
  WA_FEH_TEST_SCUSTOM_S-CITY, sy-vline,
  WA_FEH_TEST_SCUSTOM_S-COUNTRY, sy-vline,
  WA_FEH_TEST_SCUSTOM_S-REGION, sy-vline,
  WA_FEH_TEST_SCUSTOM_S-TELEPHONE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FEH_TEST_SCUSTOM_S 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_FEH_TEST_SCUSTOM_S 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_FEH_TEST_SCUSTOM_S INTO WA_FEH_TEST_SCUSTOM_S.


*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 ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_FEH_TEST_SCUSTOM_S-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FEH_TEST_SCUSTOM_S-LANGU.
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_FEH_TEST_SCUSTOM_S_STR, 
MANDT TYPE STRING,
ID TYPE STRING,
NAME TYPE STRING,
FORM TYPE STRING,
STREET TYPE STRING,
POSTBOX TYPE STRING,
POSTCODE TYPE STRING,
CITY TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
TELEPHONE TYPE STRING,
CUSTTYPE TYPE STRING,
DISCOUNT TYPE STRING,
LANGU TYPE STRING,
EMAIL TYPE STRING,
WEBUSER TYPE STRING,
TEST_ACTIVITY TYPE STRING,
GEO_CITY TYPE STRING,
MANDT TYPE STRING,
CITY TYPE STRING,
COUNTRY TYPE STRING,
LATITUDE TYPE STRING,
LONGITUDE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FEH_TEST_SCUSTOM_S_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_FEH_TEST_SCUSTOM_S_STR-MANDT sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-ID sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-NAME sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-FORM sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-STREET sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-POSTBOX sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-POSTCODE sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-CITY sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-COUNTRY sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-REGION sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-TELEPHONE sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-CUSTTYPE sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-DISCOUNT sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-LANGU sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-EMAIL sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-WEBUSER sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-TEST_ACTIVITY sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-GEO_CITY sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-MANDT sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-CITY sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-COUNTRY sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-LATITUDE sy-vline 
WA_FEH_TEST_SCUSTOM_S_STR-LONGITUDE sy-vline      INTO ld_text SEPARATED BY SPACE.

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