ABAP Select data from SAP table DNOS_NOTIF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DNOS_NOTIF
*  INTO TABLE @DATA(IT_DNOS_NOTIF2).
*--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_DNOS_NOTIF INDEX 1 INTO DATA(WA_DNOS_NOTIF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DNOS_NOTIF>-CLIENT = 1.
<DNOS_NOTIF>-GUIDH = 1.
<DNOS_NOTIF>-OBJNR = 1.
<DNOS_NOTIF>-STATUS = 1.
<DNOS_NOTIF>-DELETED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DNOS_NOTIF-PROCESSOR, sy-vline,
  WA_DNOS_NOTIF-TYPE_PROC, sy-vline,
  WA_DNOS_NOTIF-REPORTER, sy-vline,
  WA_DNOS_NOTIF-TYPE_REPO, sy-vline,
  WA_DNOS_NOTIF-CREA_TSTMP, sy-vline,
  WA_DNOS_NOTIF-CHNG_TSTMP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DNOS_NOTIF 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_DNOS_NOTIF 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_DNOS_NOTIF INTO WA_DNOS_NOTIF.


*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 TSTPS, internal->external for field CREA_TSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_DNOS_NOTIF-CREA_TSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DNOS_NOTIF-CREA_TSTMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CHNG_TSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_DNOS_NOTIF-CHNG_TSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DNOS_NOTIF-CHNG_TSTMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field START_TSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_DNOS_NOTIF-START_TSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DNOS_NOTIF-START_TSTMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field END_TSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_DNOS_NOTIF-END_TSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DNOS_NOTIF-END_TSTMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CLO_TSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_DNOS_NOTIF-CLO_TSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DNOS_NOTIF-CLO_TSTMP.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit TSTPS, internal->external for field SAP_TSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_DNOS_NOTIF-SAP_TSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DNOS_NOTIF-SAP_TSTMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field S2SAP_TSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_DNOS_NOTIF-S2SAP_TSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DNOS_NOTIF-S2SAP_TSTMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field REL_SAP_TSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_DNOS_NOTIF-REL_SAP_TSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DNOS_NOTIF-REL_SAP_TSTMP.
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_DNOS_NOTIF_STR, 
CLIENT TYPE STRING,
GUIDH TYPE STRING,
OBJNR TYPE STRING,
STATUS TYPE STRING,
DELETED TYPE STRING,
PROCESSOR TYPE STRING,
TYPE_PROC TYPE STRING,
REPORTER TYPE STRING,
TYPE_REPO TYPE STRING,
CREA_TSTMP TYPE STRING,
CHNG_TSTMP TYPE STRING,
START_TSTMP TYPE STRING,
END_TSTMP TYPE STRING,
CLO_TSTMP TYPE STRING,
NUMB TYPE STRING,
REFNUM TYPE STRING,
TYPE_NOTIF TYPE STRING,
CATEGORY TYPE STRING,
SUBJECT TYPE STRING,
PRIORITY TYPE STRING,
LANGUAGE TYPE STRING,
GUIDS TYPE STRING,
INSTN TYPE STRING,
MNUMM TYPE STRING,
MSTAT TYPE STRING,
COMP TYPE STRING,
OSSYS TYPE STRING,
DBSYS TYPE STRING,
FRONT TYPE STRING,
SWCOMP TYPE STRING,
SWREL TYPE STRING,
SWPTCH TYPE STRING,
ADD_SWCOMP TYPE STRING,
SYSTYPE TYPE STRING,
SYSID TYPE STRING,
MANDT TYPE STRING,
SAP_TSTMP TYPE STRING,
S2SAP_TSTMP TYPE STRING,
REL_SAP_TSTMP TYPE STRING,
VIEWED TYPE STRING,
PRIO_TXT TYPE STRING,
STATUS_TXT TYPE STRING,
MSTAT_TXT TYPE STRING,
GUIDP TYPE STRING,
PARNR TYPE STRING,
TYPE_PAR TYPE STRING,
FUNC_PAR TYPE STRING,
PAR_ACTIVE TYPE STRING,
GUIDN TYPE STRING,
TYPE_NOTE TYPE STRING,
IDENT TYPE STRING,
DESCRIPTION TYPE STRING,
ESTATS_TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DNOS_NOTIF_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_DNOS_NOTIF_STR-CLIENT sy-vline 
WA_DNOS_NOTIF_STR-GUIDH sy-vline 
WA_DNOS_NOTIF_STR-OBJNR sy-vline 
WA_DNOS_NOTIF_STR-STATUS sy-vline 
WA_DNOS_NOTIF_STR-DELETED sy-vline 
WA_DNOS_NOTIF_STR-PROCESSOR sy-vline 
WA_DNOS_NOTIF_STR-TYPE_PROC sy-vline 
WA_DNOS_NOTIF_STR-REPORTER sy-vline 
WA_DNOS_NOTIF_STR-TYPE_REPO sy-vline 
WA_DNOS_NOTIF_STR-CREA_TSTMP sy-vline 
WA_DNOS_NOTIF_STR-CHNG_TSTMP sy-vline 
WA_DNOS_NOTIF_STR-START_TSTMP sy-vline 
WA_DNOS_NOTIF_STR-END_TSTMP sy-vline 
WA_DNOS_NOTIF_STR-CLO_TSTMP sy-vline 
WA_DNOS_NOTIF_STR-NUMB sy-vline 
WA_DNOS_NOTIF_STR-REFNUM sy-vline 
WA_DNOS_NOTIF_STR-TYPE_NOTIF sy-vline 
WA_DNOS_NOTIF_STR-CATEGORY sy-vline 
WA_DNOS_NOTIF_STR-SUBJECT sy-vline 
WA_DNOS_NOTIF_STR-PRIORITY sy-vline 
WA_DNOS_NOTIF_STR-LANGUAGE sy-vline 
WA_DNOS_NOTIF_STR-GUIDS sy-vline 
WA_DNOS_NOTIF_STR-INSTN sy-vline 
WA_DNOS_NOTIF_STR-MNUMM sy-vline 
WA_DNOS_NOTIF_STR-MSTAT sy-vline 
WA_DNOS_NOTIF_STR-COMP sy-vline 
WA_DNOS_NOTIF_STR-OSSYS sy-vline 
WA_DNOS_NOTIF_STR-DBSYS sy-vline 
WA_DNOS_NOTIF_STR-FRONT sy-vline 
WA_DNOS_NOTIF_STR-SWCOMP sy-vline 
WA_DNOS_NOTIF_STR-SWREL sy-vline 
WA_DNOS_NOTIF_STR-SWPTCH sy-vline 
WA_DNOS_NOTIF_STR-ADD_SWCOMP sy-vline 
WA_DNOS_NOTIF_STR-SYSTYPE sy-vline 
WA_DNOS_NOTIF_STR-SYSID sy-vline 
WA_DNOS_NOTIF_STR-MANDT sy-vline 
WA_DNOS_NOTIF_STR-SAP_TSTMP sy-vline 
WA_DNOS_NOTIF_STR-S2SAP_TSTMP sy-vline 
WA_DNOS_NOTIF_STR-REL_SAP_TSTMP sy-vline 
WA_DNOS_NOTIF_STR-VIEWED sy-vline 
WA_DNOS_NOTIF_STR-PRIO_TXT sy-vline 
WA_DNOS_NOTIF_STR-STATUS_TXT sy-vline 
WA_DNOS_NOTIF_STR-MSTAT_TXT sy-vline 
WA_DNOS_NOTIF_STR-GUIDP sy-vline 
WA_DNOS_NOTIF_STR-PARNR sy-vline 
WA_DNOS_NOTIF_STR-TYPE_PAR sy-vline 
WA_DNOS_NOTIF_STR-FUNC_PAR sy-vline 
WA_DNOS_NOTIF_STR-PAR_ACTIVE sy-vline 
WA_DNOS_NOTIF_STR-GUIDN sy-vline 
WA_DNOS_NOTIF_STR-TYPE_NOTE sy-vline 
WA_DNOS_NOTIF_STR-IDENT sy-vline 
WA_DNOS_NOTIF_STR-DESCRIPTION sy-vline 
WA_DNOS_NOTIF_STR-ESTATS_TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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