ABAP Select data from SAP table /SAPSMOSS/R3_NOTIFICATION into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPSMOSS/R3_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 /SAPSMOSS/R3_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 /SAPSMOSS/R3_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_/SAPSMOSS/R3_NOTIFICATION TYPE STANDARD TABLE OF /SAPSMOSS/R3_NOTIFICATION,
      WA_/SAPSMOSS/R3_NOTIFICATION TYPE /SAPSMOSS/R3_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: </SAPSMOSS/R3_NOTIFICATION> TYPE /SAPSMOSS/R3_NOTIFICATION.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SAPSMOSS/R3_NOTIFICATION.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPSMOSS/R3_NOTIFICATION
  INTO TABLE IT_/SAPSMOSS/R3_NOTIFICATION.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPSMOSS/R3_NOTIFICATION
*  INTO TABLE @DATA(IT_/SAPSMOSS/R3_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_/SAPSMOSS/R3_NOTIFICATION INDEX 1 INTO DATA(WA_/SAPSMOSS/R3_NOTIFICATION2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPSMOSS/R3_NOTIFICATION ASSIGNING </SAPSMOSS/R3_NOTIFICATION>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPSMOSS/R3_NOTIFICATION>-QMTXT = 1.
</SAPSMOSS/R3_NOTIFICATION>-PRIOK = 1.
</SAPSMOSS/R3_NOTIFICATION>-STRMN = 1.
</SAPSMOSS/R3_NOTIFICATION>-STRUR = 1.
</SAPSMOSS/R3_NOTIFICATION>-LTRMN = 1.

ENDLOOP.

LOOP AT IT_/SAPSMOSS/R3_NOTIFICATION INTO WA_/SAPSMOSS/R3_NOTIFICATION.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPSMOSS/R3_NOTIFICATION-LTRUR, sy-vline,
  WA_/SAPSMOSS/R3_NOTIFICATION-QMNAM, sy-vline,
  WA_/SAPSMOSS/R3_NOTIFICATION-QMDAT, sy-vline,
  WA_/SAPSMOSS/R3_NOTIFICATION-MZEIT, sy-vline,
  WA_/SAPSMOSS/R3_NOTIFICATION-QMKAT, sy-vline,
  WA_/SAPSMOSS/R3_NOTIFICATION-QMGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPSMOSS/R3_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_/SAPSMOSS/R3_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_/SAPSMOSS/R3_NOTIFICATION INTO WA_/SAPSMOSS/R3_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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/SAPSMOSS/R3_NOTIFICATION_STR, 
QMTXT TYPE STRING,
PRIOK TYPE STRING,
STRMN TYPE STRING,
STRUR TYPE STRING,
LTRMN TYPE STRING,
LTRUR TYPE STRING,
QMNAM TYPE STRING,
QMDAT TYPE STRING,
MZEIT TYPE STRING,
QMKAT TYPE STRING,
QMGRP TYPE STRING,
QMCOD TYPE STRING,
/SAPSMOSS/INSTN TYPE STRING,
/SAPSMOSS/MNUMM TYPE STRING,
/SAPSMOSS/OSSYS TYPE STRING,
/SAPSMOSS/DBSYS TYPE STRING,
/SAPSMOSS/REL TYPE STRING,
/SAPSMOSS/COMP TYPE STRING,
/SAPSMOSS/FRONT TYPE STRING,
/SAPSMOSS/SYSTYP TYPE STRING,
/SAPSMOSS/ADDID TYPE STRING,
/SAPSMOSS/ADDREL TYPE STRING,
/SAPSMOSS/TSTMP TYPE STRING,
/SAPSMOSS/STATUS TYPE STRING,
/SAPSMOSS/ERDAT TYPE STRING,
/SAPSMOSS/ERZEIT TYPE STRING,
/SAPSMOSS/SYSID TYPE STRING,
/SAPSMOSS/MANDT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPSMOSS/R3_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_/SAPSMOSS/R3_NOTIFICATION_STR-QMTXT sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-PRIOK sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-STRMN sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-STRUR sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-LTRMN sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-LTRUR sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-QMNAM sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-QMDAT sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-MZEIT sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-QMKAT sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-QMGRP sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-QMCOD sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/INSTN sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/MNUMM sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/OSSYS sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/DBSYS sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/REL sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/COMP sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/FRONT sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/SYSTYP sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/ADDID sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/ADDREL sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/TSTMP sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/STATUS sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/ERDAT sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/ERZEIT sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/SYSID sy-vline 
WA_/SAPSMOSS/R3_NOTIFICATION_STR-/SAPSMOSS/MANDT sy-vline      INTO ld_text SEPARATED BY SPACE.

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