ABAP Select data from SAP table RADIO_ARCH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RADIO_ARCH
*  INTO TABLE @DATA(IT_RADIO_ARCH2).
*--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_RADIO_ARCH INDEX 1 INTO DATA(WA_RADIO_ARCH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RADIO_ARCH>-ARCH = 1.
<RADIO_ARCH>-FIRST = 1.
<RADIO_ARCH>-LAST = 1.
<RADIO_ARCH>-DELETE = 1.
<RADIO_ARCH>-RELOAD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RADIO_ARCH-MANAGE, sy-vline,
  WA_RADIO_ARCH-READ, sy-vline,
  WA_RADIO_ARCH-INDX, sy-vline,
  WA_RADIO_ARCH-INDXDEL, sy-vline,
  WA_RADIO_ARCH-DONOT, sy-vline,
  WA_RADIO_ARCH-STORE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RADIO_ARCH 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_RADIO_ARCH 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_RADIO_ARCH INTO WA_RADIO_ARCH.


*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_RADIO_ARCH_STR, 
ARCH TYPE STRING,
FIRST TYPE STRING,
LAST TYPE STRING,
DELETE TYPE STRING,
RELOAD TYPE STRING,
MANAGE TYPE STRING,
READ TYPE STRING,
INDX TYPE STRING,
INDXDEL TYPE STRING,
DONOT TYPE STRING,
STORE TYPE STRING,
RETRIEVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RADIO_ARCH_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_RADIO_ARCH_STR-ARCH sy-vline 
WA_RADIO_ARCH_STR-FIRST sy-vline 
WA_RADIO_ARCH_STR-LAST sy-vline 
WA_RADIO_ARCH_STR-DELETE sy-vline 
WA_RADIO_ARCH_STR-RELOAD sy-vline 
WA_RADIO_ARCH_STR-MANAGE sy-vline 
WA_RADIO_ARCH_STR-READ sy-vline 
WA_RADIO_ARCH_STR-INDX sy-vline 
WA_RADIO_ARCH_STR-INDXDEL sy-vline 
WA_RADIO_ARCH_STR-DONOT sy-vline 
WA_RADIO_ARCH_STR-STORE sy-vline 
WA_RADIO_ARCH_STR-RETRIEVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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