ABAP Select data from SAP table CNOTIFACTVTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNOTIFACTVTP
*  INTO TABLE @DATA(IT_CNOTIFACTVTP2).
*--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_CNOTIFACTVTP INDEX 1 INTO DATA(WA_CNOTIFACTVTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNOTIFACTVTP>-MANDT = 1.
<CNOTIFACTVTP>-MAINTNOTIFICATIONACTIVITY = 1.
<CNOTIFACTVTP>-MAINTENANCENOTIFICATION = 1.
<CNOTIFACTVTP>-MAINTENANCENOTIFICATIONITEM = 1.
<CNOTIFACTVTP>-MAINTNOTIFACTIVITYFOREDIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNOTIFACTVTP-MAINTNOTIFACTYTXT, sy-vline,
  WA_CNOTIFACTVTP-MAINTNOTIFACTIVITYCODECATALOG, sy-vline,
  WA_CNOTIFACTVTP-MAINTNOTIFICATIONACTIVITYCODE, sy-vline,
  WA_CNOTIFACTVTP-MAINTNOTIFACTIVITYCODEGROUP, sy-vline,
  WA_CNOTIFACTVTP-ISDELETED, sy-vline,
  WA_CNOTIFACTVTP-CREATEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNOTIFACTVTP 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_CNOTIFACTVTP 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_CNOTIFACTVTP INTO WA_CNOTIFACTVTP.


*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 MAINTENANCENOTIFICATION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNOTIFACTVTP-MAINTENANCENOTIFICATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNOTIFACTVTP-MAINTENANCENOTIFICATION.
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_CNOTIFACTVTP_STR, 
MANDT TYPE STRING,
MAINTNOTIFICATIONACTIVITY TYPE STRING,
MAINTENANCENOTIFICATION TYPE STRING,
MAINTENANCENOTIFICATIONITEM TYPE STRING,
MAINTNOTIFACTIVITYFOREDIT TYPE STRING,
MAINTNOTIFACTYTXT TYPE STRING,
MAINTNOTIFACTIVITYCODECATALOG TYPE STRING,
MAINTNOTIFICATIONACTIVITYCODE TYPE STRING,
MAINTNOTIFACTIVITYCODEGROUP TYPE STRING,
ISDELETED TYPE STRING,
CREATEDBYUSER TYPE STRING,
PLANNEDSTARTDATE TYPE STRING,
PLANNEDSTARTTIME TYPE STRING,
MAINTNOTIFACTYQTYFACTOR TYPE STRING,
PLANNEDENDDATE TYPE STRING,
PLANNEDENDTIME TYPE STRING,
MAINTNOTIFACTIVITYSORTNUMBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNOTIFACTVTP_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_CNOTIFACTVTP_STR-MANDT sy-vline 
WA_CNOTIFACTVTP_STR-MAINTNOTIFICATIONACTIVITY sy-vline 
WA_CNOTIFACTVTP_STR-MAINTENANCENOTIFICATION sy-vline 
WA_CNOTIFACTVTP_STR-MAINTENANCENOTIFICATIONITEM sy-vline 
WA_CNOTIFACTVTP_STR-MAINTNOTIFACTIVITYFOREDIT sy-vline 
WA_CNOTIFACTVTP_STR-MAINTNOTIFACTYTXT sy-vline 
WA_CNOTIFACTVTP_STR-MAINTNOTIFACTIVITYCODECATALOG sy-vline 
WA_CNOTIFACTVTP_STR-MAINTNOTIFICATIONACTIVITYCODE sy-vline 
WA_CNOTIFACTVTP_STR-MAINTNOTIFACTIVITYCODEGROUP sy-vline 
WA_CNOTIFACTVTP_STR-ISDELETED sy-vline 
WA_CNOTIFACTVTP_STR-CREATEDBYUSER sy-vline 
WA_CNOTIFACTVTP_STR-PLANNEDSTARTDATE sy-vline 
WA_CNOTIFACTVTP_STR-PLANNEDSTARTTIME sy-vline 
WA_CNOTIFACTVTP_STR-MAINTNOTIFACTYQTYFACTOR sy-vline 
WA_CNOTIFACTVTP_STR-PLANNEDENDDATE sy-vline 
WA_CNOTIFACTVTP_STR-PLANNEDENDTIME sy-vline 
WA_CNOTIFACTVTP_STR-MAINTNOTIFACTIVITYSORTNUMBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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