ABAP Select data from SAP table SIT2_D_BT 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_BT 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_BT. 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_BT 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_BT TYPE STANDARD TABLE OF SIT2_D_BT,
      WA_SIT2_D_BT TYPE SIT2_D_BT,
      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_BT> TYPE SIT2_D_BT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SIT2_D_BT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SIT2_D_BT
  INTO TABLE IT_SIT2_D_BT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SIT2_D_BT
*  INTO TABLE @DATA(IT_SIT2_D_BT2).
*--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_BT INDEX 1 INTO DATA(WA_SIT2_D_BT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SIT2_D_BT ASSIGNING <SIT2_D_BT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SIT2_D_BT>-MANDT = 1.
<SIT2_D_BT>-DRAFTUUID = 1.
<SIT2_D_BT>-SITNBASETEMPLATEID = 1.
<SIT2_D_BT>-SITNBASETEMPLATEIDFOREDIT = 1.
<SIT2_D_BT>-SITNBASETEMPLATETYPE = 1.

ENDLOOP.

LOOP AT IT_SIT2_D_BT INTO WA_SIT2_D_BT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SIT2_D_BT-SITNBASETMPLOBJSTRUCTYPE, sy-vline,
  WA_SIT2_D_BT-RESPYMGMTCONTEXTID, sy-vline,
  WA_SIT2_D_BT-RESPYMGMTCONTEXTTYPE, sy-vline,
  WA_SIT2_D_BT-SITNBASETMPLISEXTENSIBLE, sy-vline,
  WA_SIT2_D_BT-SITNBASETMPLSCOPE, sy-vline,
  WA_SIT2_D_BT-ABAPPACKAGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SIT2_D_BT 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_BT 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_BT INTO WA_SIT2_D_BT.


*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_BT_STR, 
MANDT TYPE STRING,
DRAFTUUID TYPE STRING,
SITNBASETEMPLATEID TYPE STRING,
SITNBASETEMPLATEIDFOREDIT TYPE STRING,
SITNBASETEMPLATETYPE TYPE STRING,
SITNBASETMPLOBJSTRUCTYPE TYPE STRING,
RESPYMGMTCONTEXTID TYPE STRING,
RESPYMGMTCONTEXTTYPE TYPE STRING,
SITNBASETMPLISEXTENSIBLE TYPE STRING,
SITNBASETMPLSCOPE TYPE STRING,
ABAPPACKAGE TYPE STRING,
ABAPLANGUAGEVERSION TYPE STRING,
TRANSPORTREQUESTID TYPE STRING,
SITNBASETMPLNAME TYPE STRING,
SITNBASETMPLDESCRIPTION TYPE STRING,
SITNANCHOROBJECTID TYPE STRING,
SITNANCHOROBJECTKEYFIELD TYPE STRING,
SITNANCHOROBJSTRUCID TYPE STRING,
HASACTIVEENTITY 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_BT_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_BT_STR-MANDT sy-vline 
WA_SIT2_D_BT_STR-DRAFTUUID sy-vline 
WA_SIT2_D_BT_STR-SITNBASETEMPLATEID sy-vline 
WA_SIT2_D_BT_STR-SITNBASETEMPLATEIDFOREDIT sy-vline 
WA_SIT2_D_BT_STR-SITNBASETEMPLATETYPE sy-vline 
WA_SIT2_D_BT_STR-SITNBASETMPLOBJSTRUCTYPE sy-vline 
WA_SIT2_D_BT_STR-RESPYMGMTCONTEXTID sy-vline 
WA_SIT2_D_BT_STR-RESPYMGMTCONTEXTTYPE sy-vline 
WA_SIT2_D_BT_STR-SITNBASETMPLISEXTENSIBLE sy-vline 
WA_SIT2_D_BT_STR-SITNBASETMPLSCOPE sy-vline 
WA_SIT2_D_BT_STR-ABAPPACKAGE sy-vline 
WA_SIT2_D_BT_STR-ABAPLANGUAGEVERSION sy-vline 
WA_SIT2_D_BT_STR-TRANSPORTREQUESTID sy-vline 
WA_SIT2_D_BT_STR-SITNBASETMPLNAME sy-vline 
WA_SIT2_D_BT_STR-SITNBASETMPLDESCRIPTION sy-vline 
WA_SIT2_D_BT_STR-SITNANCHOROBJECTID sy-vline 
WA_SIT2_D_BT_STR-SITNANCHOROBJECTKEYFIELD sy-vline 
WA_SIT2_D_BT_STR-SITNANCHOROBJSTRUCID sy-vline 
WA_SIT2_D_BT_STR-HASACTIVEENTITY sy-vline 
WA_SIT2_D_BT_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_SIT2_D_BT_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_SIT2_D_BT_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_SIT2_D_BT_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_SIT2_D_BT_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.