ABAP Select data from SAP table IQNOTIFACT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IQNOTIFACT
*  INTO TABLE @DATA(IT_IQNOTIFACT2).
*--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_IQNOTIFACT INDEX 1 INTO DATA(WA_IQNOTIFACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IQNOTIFACT>-MANDT = 1.
<IQNOTIFACT>-QUALITYNOTIFICATION = 1.
<IQNOTIFACT>-NOTIFICATIONACTIVITY = 1.
<IQNOTIFACT>-NOTIFICATIONITEM = 1.
<IQNOTIFACT>-NOTIFICATIONACTIVITYSORTNUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IQNOTIFACT-ISDELETED, sy-vline,
  WA_IQNOTIFACT-MASTERLANGUAGE, sy-vline,
  WA_IQNOTIFACT-NOTIFACTIVITYCATALOG, sy-vline,
  WA_IQNOTIFACT-NOTIFACTIVITYCODEGROUP, sy-vline,
  WA_IQNOTIFACT-NOTIFACTIVITYCODE, sy-vline,
  WA_IQNOTIFACT-NOTIFACTIVITYTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IQNOTIFACT 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_IQNOTIFACT 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_IQNOTIFACT INTO WA_IQNOTIFACT.


*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 QUALITYNOTIFICATION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IQNOTIFACT-QUALITYNOTIFICATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IQNOTIFACT-QUALITYNOTIFICATION.
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_IQNOTIFACT_STR, 
MANDT TYPE STRING,
QUALITYNOTIFICATION TYPE STRING,
NOTIFICATIONACTIVITY TYPE STRING,
NOTIFICATIONITEM TYPE STRING,
NOTIFICATIONACTIVITYSORTNUMBER TYPE STRING,
ISDELETED TYPE STRING,
MASTERLANGUAGE TYPE STRING,
NOTIFACTIVITYCATALOG TYPE STRING,
NOTIFACTIVITYCODEGROUP TYPE STRING,
NOTIFACTIVITYCODE TYPE STRING,
NOTIFACTIVITYTEXT TYPE STRING,
NOTIFACTIVITYSTARTDATE TYPE STRING,
NOTIFACTIVITYSTARTTIME TYPE STRING,
NOTIFACTIVITYENDDATE TYPE STRING,
NOTIFACTIVITYENDTIME TYPE STRING,
NOTIFPROCESSINGPHASE TYPE STRING,
CHANGEDDATETIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
ISBUSINESSPURPOSECOMPLETED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IQNOTIFACT_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_IQNOTIFACT_STR-MANDT sy-vline 
WA_IQNOTIFACT_STR-QUALITYNOTIFICATION sy-vline 
WA_IQNOTIFACT_STR-NOTIFICATIONACTIVITY sy-vline 
WA_IQNOTIFACT_STR-NOTIFICATIONITEM sy-vline 
WA_IQNOTIFACT_STR-NOTIFICATIONACTIVITYSORTNUMBER sy-vline 
WA_IQNOTIFACT_STR-ISDELETED sy-vline 
WA_IQNOTIFACT_STR-MASTERLANGUAGE sy-vline 
WA_IQNOTIFACT_STR-NOTIFACTIVITYCATALOG sy-vline 
WA_IQNOTIFACT_STR-NOTIFACTIVITYCODEGROUP sy-vline 
WA_IQNOTIFACT_STR-NOTIFACTIVITYCODE sy-vline 
WA_IQNOTIFACT_STR-NOTIFACTIVITYTEXT sy-vline 
WA_IQNOTIFACT_STR-NOTIFACTIVITYSTARTDATE sy-vline 
WA_IQNOTIFACT_STR-NOTIFACTIVITYSTARTTIME sy-vline 
WA_IQNOTIFACT_STR-NOTIFACTIVITYENDDATE sy-vline 
WA_IQNOTIFACT_STR-NOTIFACTIVITYENDTIME sy-vline 
WA_IQNOTIFACT_STR-NOTIFPROCESSINGPHASE sy-vline 
WA_IQNOTIFACT_STR-CHANGEDDATETIME sy-vline 
WA_IQNOTIFACT_STR-CREATEDBYUSER sy-vline 
WA_IQNOTIFACT_STR-CREATIONDATE sy-vline 
WA_IQNOTIFACT_STR-CREATIONTIME sy-vline 
WA_IQNOTIFACT_STR-LASTCHANGEDBYUSER sy-vline 
WA_IQNOTIFACT_STR-LASTCHANGEDATE sy-vline 
WA_IQNOTIFACT_STR-LASTCHANGETIME sy-vline 
WA_IQNOTIFACT_STR-ISBUSINESSPURPOSECOMPLETED sy-vline      INTO ld_text SEPARATED BY SPACE.

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