ABAP Select data from SAP table SIT2_D_DEF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SIT2_D_DEF 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 SIT2_D_DEF. 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 SIT2_D_DEF 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_SIT2_D_DEF TYPE STANDARD TABLE OF SIT2_D_DEF,
      WA_SIT2_D_DEF TYPE SIT2_D_DEF,
      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: <SIT2_D_DEF> TYPE SIT2_D_DEF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SIT2_D_DEF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SIT2_D_DEF
  INTO TABLE IT_SIT2_D_DEF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SIT2_D_DEF
*  INTO TABLE @DATA(IT_SIT2_D_DEF2).
*--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_SIT2_D_DEF INDEX 1 INTO DATA(WA_SIT2_D_DEF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SIT2_D_DEF ASSIGNING <SIT2_D_DEF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SIT2_D_DEF>-MANDT = 1.
<SIT2_D_DEF>-DRAFTUUID = 1.
<SIT2_D_DEF>-SITNDEFINITIONID = 1.
<SIT2_D_DEF>-SITNDEFINITIONIDFOREDIT = 1.
<SIT2_D_DEF>-SITNCONFIGNTEMPLATEID = 1.

ENDLOOP.

LOOP AT IT_SIT2_D_DEF INTO WA_SIT2_D_DEF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SIT2_D_DEF-SITNBASETEMPLATEID, sy-vline,
  WA_SIT2_D_DEF-SITNBASETEMPLATETYPE, sy-vline,
  WA_SIT2_D_DEF-SITNDEFISENABLED, sy-vline,
  WA_SIT2_D_DEF-SITNDEFNAME, sy-vline,
  WA_SIT2_D_DEF-SITNDEFDESCRIPTION, sy-vline,
  WA_SIT2_D_DEF-SITNTEMPLATESCOPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SIT2_D_DEF 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_SIT2_D_DEF 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_SIT2_D_DEF INTO WA_SIT2_D_DEF.


*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_SIT2_D_DEF_STR, 
MANDT TYPE STRING,
DRAFTUUID TYPE STRING,
SITNDEFINITIONID TYPE STRING,
SITNDEFINITIONIDFOREDIT TYPE STRING,
SITNCONFIGNTEMPLATEID TYPE STRING,
SITNBASETEMPLATEID TYPE STRING,
SITNBASETEMPLATETYPE TYPE STRING,
SITNDEFISENABLED TYPE STRING,
SITNDEFNAME TYPE STRING,
SITNDEFDESCRIPTION TYPE STRING,
SITNTEMPLATESCOPE TYPE STRING,
SITNDEFTYPE TYPE STRING,
RESPYMCONTEXTLEADINGOBJECTID TYPE STRING,
RESPYMGMTCONTEXTID TYPE STRING,
RESPYMGMTCONTEXTTYPE TYPE STRING,
RESPYMGMTCONTEXTDATACATEGORY TYPE STRING,
SITUATIONTITLE TYPE STRING,
SITUATIONTEXT TYPE STRING,
SITNPUBLICNOTIFTEXT TYPE STRING,
SITUATIONLINK TYPE STRING,
SITUATIONLINKTEXT TYPE STRING,
SITNAGGRGDNOTIFTITLE TYPE STRING,
SITNAGGRGDNOTIFTEXT TYPE STRING,
CREATIONDATETIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATEDBYUSERNAME TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDBYUSERNAME TYPE STRING,
SITNDEFHELPDOCLINK TYPE STRING,
SITNSCHEDLDBATCHREPEATTYPE TYPE STRING,
SITNSCHEDLDBATREPTINTERVAL TYPE STRING,
SITNSCHEDLDBATCHTIMEZONE TYPE STRING,
SITNINSTCECLOSEBEHAVIOR TYPE STRING,
SITNTRIGGERACCMLNISENABLED TYPE STRING,
HASACTIVEENTITY TYPE STRING,
RSMCONTEXTDRAFTUUID TYPE STRING,
RSMCONTEXTISDRAFTENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SIT2_D_DEF_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_SIT2_D_DEF_STR-MANDT sy-vline 
WA_SIT2_D_DEF_STR-DRAFTUUID sy-vline 
WA_SIT2_D_DEF_STR-SITNDEFINITIONID sy-vline 
WA_SIT2_D_DEF_STR-SITNDEFINITIONIDFOREDIT sy-vline 
WA_SIT2_D_DEF_STR-SITNCONFIGNTEMPLATEID sy-vline 
WA_SIT2_D_DEF_STR-SITNBASETEMPLATEID sy-vline 
WA_SIT2_D_DEF_STR-SITNBASETEMPLATETYPE sy-vline 
WA_SIT2_D_DEF_STR-SITNDEFISENABLED sy-vline 
WA_SIT2_D_DEF_STR-SITNDEFNAME sy-vline 
WA_SIT2_D_DEF_STR-SITNDEFDESCRIPTION sy-vline 
WA_SIT2_D_DEF_STR-SITNTEMPLATESCOPE sy-vline 
WA_SIT2_D_DEF_STR-SITNDEFTYPE sy-vline 
WA_SIT2_D_DEF_STR-RESPYMCONTEXTLEADINGOBJECTID sy-vline 
WA_SIT2_D_DEF_STR-RESPYMGMTCONTEXTID sy-vline 
WA_SIT2_D_DEF_STR-RESPYMGMTCONTEXTTYPE sy-vline 
WA_SIT2_D_DEF_STR-RESPYMGMTCONTEXTDATACATEGORY sy-vline 
WA_SIT2_D_DEF_STR-SITUATIONTITLE sy-vline 
WA_SIT2_D_DEF_STR-SITUATIONTEXT sy-vline 
WA_SIT2_D_DEF_STR-SITNPUBLICNOTIFTEXT sy-vline 
WA_SIT2_D_DEF_STR-SITUATIONLINK sy-vline 
WA_SIT2_D_DEF_STR-SITUATIONLINKTEXT sy-vline 
WA_SIT2_D_DEF_STR-SITNAGGRGDNOTIFTITLE sy-vline 
WA_SIT2_D_DEF_STR-SITNAGGRGDNOTIFTEXT sy-vline 
WA_SIT2_D_DEF_STR-CREATIONDATETIME sy-vline 
WA_SIT2_D_DEF_STR-CREATEDBYUSER sy-vline 
WA_SIT2_D_DEF_STR-CREATEDBYUSERNAME sy-vline 
WA_SIT2_D_DEF_STR-LASTCHANGEDATETIME sy-vline 
WA_SIT2_D_DEF_STR-LASTCHANGEDBYUSER sy-vline 
WA_SIT2_D_DEF_STR-LASTCHANGEDBYUSERNAME sy-vline 
WA_SIT2_D_DEF_STR-SITNDEFHELPDOCLINK sy-vline 
WA_SIT2_D_DEF_STR-SITNSCHEDLDBATCHREPEATTYPE sy-vline 
WA_SIT2_D_DEF_STR-SITNSCHEDLDBATREPTINTERVAL sy-vline 
WA_SIT2_D_DEF_STR-SITNSCHEDLDBATCHTIMEZONE sy-vline 
WA_SIT2_D_DEF_STR-SITNINSTCECLOSEBEHAVIOR sy-vline 
WA_SIT2_D_DEF_STR-SITNTRIGGERACCMLNISENABLED sy-vline 
WA_SIT2_D_DEF_STR-HASACTIVEENTITY sy-vline 
WA_SIT2_D_DEF_STR-RSMCONTEXTDRAFTUUID sy-vline 
WA_SIT2_D_DEF_STR-RSMCONTEXTISDRAFTENTITY sy-vline 
WA_SIT2_D_DEF_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_SIT2_D_DEF_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_SIT2_D_DEF_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_SIT2_D_DEF_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_SIT2_D_DEF_STR-DRAFTENTITYOPERATIONCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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