ABAP Select data from SAP table INOTIF_TASK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM INOTIF_TASK
*  INTO TABLE @DATA(IT_INOTIF_TASK2).
*--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_INOTIF_TASK INDEX 1 INTO DATA(WA_INOTIF_TASK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<INOTIF_TASK>-QMNUM = 1.
<INOTIF_TASK>-FENUM = 1.
<INOTIF_TASK>-MANUM = 1.
<INOTIF_TASK>-MNGRP = 1.
<INOTIF_TASK>-MNCOD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_INOTIF_TASK-STTXT, sy-vline,
  WA_INOTIF_TASK-USTXT, sy-vline,
  WA_INOTIF_TASK-TXTCD, sy-vline,
  WA_INOTIF_TASK-MATXT, sy-vline,
  WA_INOTIF_TASK-PARVW, sy-vline,
  WA_INOTIF_TASK-PARNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_INOTIF_TASK 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_INOTIF_TASK 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_INOTIF_TASK INTO WA_INOTIF_TASK.


*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 QMNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_INOTIF_TASK-QMNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_INOTIF_TASK-QMNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field PARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_INOTIF_TASK-PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_INOTIF_TASK-PARVW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_INOTIF_TASK-PARNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_INOTIF_TASK-PARNR.
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_INOTIF_TASK_STR, 
QMNUM TYPE STRING,
FENUM TYPE STRING,
MANUM TYPE STRING,
MNGRP TYPE STRING,
MNCOD TYPE STRING,
STTXT TYPE STRING,
USTXT TYPE STRING,
TXTCD TYPE STRING,
MATXT TYPE STRING,
PARVW TYPE STRING,
PARNR TYPE STRING,
PSTER TYPE STRING,
PSTUR TYPE STRING,
PETER TYPE STRING,
PETUR TYPE STRING,
KZMLA TYPE STRING,
OBJNR TYPE STRING,
INDTX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_INOTIF_TASK_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_INOTIF_TASK_STR-QMNUM sy-vline 
WA_INOTIF_TASK_STR-FENUM sy-vline 
WA_INOTIF_TASK_STR-MANUM sy-vline 
WA_INOTIF_TASK_STR-MNGRP sy-vline 
WA_INOTIF_TASK_STR-MNCOD sy-vline 
WA_INOTIF_TASK_STR-STTXT sy-vline 
WA_INOTIF_TASK_STR-USTXT sy-vline 
WA_INOTIF_TASK_STR-TXTCD sy-vline 
WA_INOTIF_TASK_STR-MATXT sy-vline 
WA_INOTIF_TASK_STR-PARVW sy-vline 
WA_INOTIF_TASK_STR-PARNR sy-vline 
WA_INOTIF_TASK_STR-PSTER sy-vline 
WA_INOTIF_TASK_STR-PSTUR sy-vline 
WA_INOTIF_TASK_STR-PETER sy-vline 
WA_INOTIF_TASK_STR-PETUR sy-vline 
WA_INOTIF_TASK_STR-KZMLA sy-vline 
WA_INOTIF_TASK_STR-OBJNR sy-vline 
WA_INOTIF_TASK_STR-INDTX sy-vline      INTO ld_text SEPARATED BY SPACE.

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