ABAP Select data from SAP table REBD_FL_NOTIFICATION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REBD_FL_NOTIFICATION
*  INTO TABLE @DATA(IT_REBD_FL_NOTIFICATION2).
*--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_REBD_FL_NOTIFICATION INDEX 1 INTO DATA(WA_REBD_FL_NOTIFICATION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REBD_FL_NOTIFICATION>-NOTIFICAT = 1.
<REBD_FL_NOTIFICATION>-NOTIF_TYPE = 1.
<REBD_FL_NOTIFICATION>-FUNCLOC = 1.
<REBD_FL_NOTIFICATION>-EQUIPMENT = 1.
<REBD_FL_NOTIFICATION>-CUSTOMER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REBD_FL_NOTIFICATION-DESCRIPT, sy-vline,
  WA_REBD_FL_NOTIFICATION-PURCH_NO, sy-vline,
  WA_REBD_FL_NOTIFICATION-PURCH_DATE, sy-vline,
  WA_REBD_FL_NOTIFICATION-S_STATUS, sy-vline,
  WA_REBD_FL_NOTIFICATION-U_STATUS, sy-vline,
  WA_REBD_FL_NOTIFICATION-EQUIDESCR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REBD_FL_NOTIFICATION 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_REBD_FL_NOTIFICATION 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_REBD_FL_NOTIFICATION INTO WA_REBD_FL_NOTIFICATION.


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

*Conversion exit TPLNR, internal->external for field FUNCLOC
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_REBD_FL_NOTIFICATION-FUNCLOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBD_FL_NOTIFICATION-FUNCLOC.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REBD_FL_NOTIFICATION-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBD_FL_NOTIFICATION-CUSTOMER.
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_REBD_FL_NOTIFICATION_STR, 
NOTIFICAT TYPE STRING,
NOTIF_TYPE TYPE STRING,
FUNCLOC TYPE STRING,
EQUIPMENT TYPE STRING,
CUSTOMER TYPE STRING,
DESCRIPT TYPE STRING,
PURCH_NO TYPE STRING,
PURCH_DATE TYPE STRING,
S_STATUS TYPE STRING,
U_STATUS TYPE STRING,
EQUIDESCR TYPE STRING,
FUNCLDESCR TYPE STRING,
NOTIFDATE TYPE STRING,
NOTIFTIME TYPE STRING,
PRIOTYPE TYPE STRING,
PRIORITY TYPE STRING,
COMPLETION TYPE STRING,
STARTDATE TYPE STRING,
ENDDATE TYPE STRING,
PURCH_NO_C TYPE STRING,
SCENARIO TYPE STRING,
EXTERNAL_NUMBER TYPE STRING,
LACD_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REBD_FL_NOTIFICATION_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_REBD_FL_NOTIFICATION_STR-NOTIFICAT sy-vline 
WA_REBD_FL_NOTIFICATION_STR-NOTIF_TYPE sy-vline 
WA_REBD_FL_NOTIFICATION_STR-FUNCLOC sy-vline 
WA_REBD_FL_NOTIFICATION_STR-EQUIPMENT sy-vline 
WA_REBD_FL_NOTIFICATION_STR-CUSTOMER sy-vline 
WA_REBD_FL_NOTIFICATION_STR-DESCRIPT sy-vline 
WA_REBD_FL_NOTIFICATION_STR-PURCH_NO sy-vline 
WA_REBD_FL_NOTIFICATION_STR-PURCH_DATE sy-vline 
WA_REBD_FL_NOTIFICATION_STR-S_STATUS sy-vline 
WA_REBD_FL_NOTIFICATION_STR-U_STATUS sy-vline 
WA_REBD_FL_NOTIFICATION_STR-EQUIDESCR sy-vline 
WA_REBD_FL_NOTIFICATION_STR-FUNCLDESCR sy-vline 
WA_REBD_FL_NOTIFICATION_STR-NOTIFDATE sy-vline 
WA_REBD_FL_NOTIFICATION_STR-NOTIFTIME sy-vline 
WA_REBD_FL_NOTIFICATION_STR-PRIOTYPE sy-vline 
WA_REBD_FL_NOTIFICATION_STR-PRIORITY sy-vline 
WA_REBD_FL_NOTIFICATION_STR-COMPLETION sy-vline 
WA_REBD_FL_NOTIFICATION_STR-STARTDATE sy-vline 
WA_REBD_FL_NOTIFICATION_STR-ENDDATE sy-vline 
WA_REBD_FL_NOTIFICATION_STR-PURCH_NO_C sy-vline 
WA_REBD_FL_NOTIFICATION_STR-SCENARIO sy-vline 
WA_REBD_FL_NOTIFICATION_STR-EXTERNAL_NUMBER sy-vline 
WA_REBD_FL_NOTIFICATION_STR-LACD_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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