ABAP Select data from SAP table /POA/S_EN_NOTIF_HEADER_DTO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /POA/S_EN_NOTIF_HEADER_DTO
*  INTO TABLE @DATA(IT_/POA/S_EN_NOTIF_HEADER_DTO2).
*--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_/POA/S_EN_NOTIF_HEADER_DTO INDEX 1 INTO DATA(WA_/POA/S_EN_NOTIF_HEADER_DTO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</POA/S_EN_NOTIF_HEADER_DTO>-ID = 1.
</POA/S_EN_NOTIF_HEADER_DTO>-SOURCE = 1.
</POA/S_EN_NOTIF_HEADER_DTO>-FROM_ADDRESS = 1.
</POA/S_EN_NOTIF_HEADER_DTO>-FROM_USER = 1.
</POA/S_EN_NOTIF_HEADER_DTO>-FROM_NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/POA/S_EN_NOTIF_HEADER_DTO-TYPE, sy-vline,
  WA_/POA/S_EN_NOTIF_HEADER_DTO-PRIORITY, sy-vline,
  WA_/POA/S_EN_NOTIF_HEADER_DTO-MESSAGE_TYPE, sy-vline,
  WA_/POA/S_EN_NOTIF_HEADER_DTO-RECIPIENT, sy-vline,
  WA_/POA/S_EN_NOTIF_HEADER_DTO-DISPLAY_NAME, sy-vline,
  WA_/POA/S_EN_NOTIF_HEADER_DTO-SHORT_NAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/POA/S_EN_NOTIF_HEADER_DTO 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_/POA/S_EN_NOTIF_HEADER_DTO 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_/POA/S_EN_NOTIF_HEADER_DTO INTO WA_/POA/S_EN_NOTIF_HEADER_DTO.


*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 SXIDN, internal->external for field FROM_NAME
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_/POA/S_EN_NOTIF_HEADER_DTO-FROM_NAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/POA/S_EN_NOTIF_HEADER_DTO-FROM_NAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field DISPLAY_NAME
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_/POA/S_EN_NOTIF_HEADER_DTO-DISPLAY_NAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/POA/S_EN_NOTIF_HEADER_DTO-DISPLAY_NAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field EMAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_/POA/S_EN_NOTIF_HEADER_DTO-EMAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/POA/S_EN_NOTIF_HEADER_DTO-EMAIL.
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_/POA/S_EN_NOTIF_HEADER_DTO_STR, 
ID TYPE STRING,
SOURCE TYPE STRING,
FROM_ADDRESS TYPE STRING,
FROM_USER TYPE STRING,
FROM_NAME TYPE STRING,
TYPE TYPE STRING,
PRIORITY TYPE STRING,
MESSAGE_TYPE TYPE STRING,
RECIPIENT TYPE STRING,
DISPLAY_NAME TYPE STRING,
SHORT_NAME TYPE STRING,
EMAIL TYPE STRING,
TITLE TYPE STRING,
TIMESTAMP TYPE STRING,
READ_STATUS TYPE STRING,
HAS_ATTACHMENTS TYPE STRING,
OBJECT_ID TYPE STRING,
SOOSK TYPE STRING,
OBJTP TYPE STRING,
OBJYR TYPE STRING,
OBJNO TYPE STRING,
FORTP TYPE STRING,
FORYR TYPE STRING,
FORNO TYPE STRING,
RECTP TYPE STRING,
RECYR TYPE STRING,
RECNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/POA/S_EN_NOTIF_HEADER_DTO_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_/POA/S_EN_NOTIF_HEADER_DTO_STR-ID sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-SOURCE sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-FROM_ADDRESS sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-FROM_USER sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-FROM_NAME sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-TYPE sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-PRIORITY sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-MESSAGE_TYPE sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-RECIPIENT sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-DISPLAY_NAME sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-SHORT_NAME sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-EMAIL sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-TITLE sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-TIMESTAMP sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-READ_STATUS sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-HAS_ATTACHMENTS sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-OBJECT_ID sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-SOOSK sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-OBJTP sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-OBJYR sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-OBJNO sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-FORTP sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-FORYR sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-FORNO sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-RECTP sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-RECYR sy-vline 
WA_/POA/S_EN_NOTIF_HEADER_DTO_STR-RECNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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