ABAP Select data from SAP table CSITN2OGMSGFLTP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CSITN2OGMSGFLTP 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 CSITN2OGMSGFLTP. 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 CSITN2OGMSGFLTP 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_CSITN2OGMSGFLTP TYPE STANDARD TABLE OF CSITN2OGMSGFLTP,
      WA_CSITN2OGMSGFLTP TYPE CSITN2OGMSGFLTP,
      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: <CSITN2OGMSGFLTP> TYPE CSITN2OGMSGFLTP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CSITN2OGMSGFLTP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CSITN2OGMSGFLTP
  INTO TABLE IT_CSITN2OGMSGFLTP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSITN2OGMSGFLTP
*  INTO TABLE @DATA(IT_CSITN2OGMSGFLTP2).
*--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_CSITN2OGMSGFLTP INDEX 1 INTO DATA(WA_CSITN2OGMSGFLTP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CSITN2OGMSGFLTP ASSIGNING <CSITN2OGMSGFLTP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSITN2OGMSGFLTP>-MANDT = 1.
<CSITN2OGMSGFLTP>-SITNDEFINITIONID = 1.
<CSITN2OGMSGFLTP>-SITNOBJECTGROUPID = 1.
<CSITN2OGMSGFLTP>-SITNMSGFILTERKEY = 1.
<CSITN2OGMSGFLTP>-SITNBASETEMPLATEID = 1.

ENDLOOP.

LOOP AT IT_CSITN2OGMSGFLTP INTO WA_CSITN2OGMSGFLTP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSITN2OGMSGFLTP-SITNMSGFILTERISENABLED, sy-vline,
  WA_CSITN2OGMSGFLTP-SITNMSGFILTERISAGGREGATED, sy-vline,
  WA_CSITN2OGMSGFLTP-SITNMSGFILTERAGGRGNTHRESHOLD, sy-vline,
  WA_CSITN2OGMSGFLTP-SITNMSGCLASSID, sy-vline,
  WA_CSITN2OGMSGFLTP-SITNMSGNUMBER, sy-vline,
  WA_CSITN2OGMSGFLTP-SITNMSGTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSITN2OGMSGFLTP 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_CSITN2OGMSGFLTP 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_CSITN2OGMSGFLTP INTO WA_CSITN2OGMSGFLTP.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CSITN2OGMSGFLTP_STR, 
MANDT TYPE STRING,
SITNDEFINITIONID TYPE STRING,
SITNOBJECTGROUPID TYPE STRING,
SITNMSGFILTERKEY TYPE STRING,
SITNBASETEMPLATEID TYPE STRING,
SITNMSGFILTERISENABLED TYPE STRING,
SITNMSGFILTERISAGGREGATED TYPE STRING,
SITNMSGFILTERAGGRGNTHRESHOLD TYPE STRING,
SITNMSGCLASSID TYPE STRING,
SITNMSGNUMBER TYPE STRING,
SITNMSGTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSITN2OGMSGFLTP_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_CSITN2OGMSGFLTP_STR-MANDT sy-vline 
WA_CSITN2OGMSGFLTP_STR-SITNDEFINITIONID sy-vline 
WA_CSITN2OGMSGFLTP_STR-SITNOBJECTGROUPID sy-vline 
WA_CSITN2OGMSGFLTP_STR-SITNMSGFILTERKEY sy-vline 
WA_CSITN2OGMSGFLTP_STR-SITNBASETEMPLATEID sy-vline 
WA_CSITN2OGMSGFLTP_STR-SITNMSGFILTERISENABLED sy-vline 
WA_CSITN2OGMSGFLTP_STR-SITNMSGFILTERISAGGREGATED sy-vline 
WA_CSITN2OGMSGFLTP_STR-SITNMSGFILTERAGGRGNTHRESHOLD sy-vline 
WA_CSITN2OGMSGFLTP_STR-SITNMSGCLASSID sy-vline 
WA_CSITN2OGMSGFLTP_STR-SITNMSGNUMBER sy-vline 
WA_CSITN2OGMSGFLTP_STR-SITNMSGTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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