ABAP Select data from SAP table /DSD/SL_BUFFER_ADMIN_S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /DSD/SL_BUFFER_ADMIN_S 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 /DSD/SL_BUFFER_ADMIN_S. 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 /DSD/SL_BUFFER_ADMIN_S 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_/DSD/SL_BUFFER_ADMIN_S TYPE STANDARD TABLE OF /DSD/SL_BUFFER_ADMIN_S,
      WA_/DSD/SL_BUFFER_ADMIN_S TYPE /DSD/SL_BUFFER_ADMIN_S,
      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: </DSD/SL_BUFFER_ADMIN_S> TYPE /DSD/SL_BUFFER_ADMIN_S.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /DSD/SL_BUFFER_ADMIN_S
  INTO TABLE IT_/DSD/SL_BUFFER_ADMIN_S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /DSD/SL_BUFFER_ADMIN_S
*  INTO TABLE @DATA(IT_/DSD/SL_BUFFER_ADMIN_S2).
*--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_/DSD/SL_BUFFER_ADMIN_S INDEX 1 INTO DATA(WA_/DSD/SL_BUFFER_ADMIN_S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/DSD/SL_BUFFER_ADMIN_S ASSIGNING </DSD/SL_BUFFER_ADMIN_S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</DSD/SL_BUFFER_ADMIN_S>-CLIENT = 1.
</DSD/SL_BUFFER_ADMIN_S>-TOUR_ID = 1.
</DSD/SL_BUFFER_ADMIN_S>-CHANGE_ID = 1.
</DSD/SL_BUFFER_ADMIN_S>-LOCKED = 1.
</DSD/SL_BUFFER_ADMIN_S>-CHANGED = 1.

ENDLOOP.

LOOP AT IT_/DSD/SL_BUFFER_ADMIN_S INTO WA_/DSD/SL_BUFFER_ADMIN_S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/DSD/SL_BUFFER_ADMIN_S-CNG_DATE, sy-vline,
  WA_/DSD/SL_BUFFER_ADMIN_S-CNG_TIME, sy-vline,
  WA_/DSD/SL_BUFFER_ADMIN_S-CNG_USER, sy-vline,
  WA_/DSD/SL_BUFFER_ADMIN_S-RAHD, sy-vline,
  WA_/DSD/SL_BUFFER_ADMIN_S-RACTR, sy-vline,
  WA_/DSD/SL_BUFFER_ADMIN_S-RACOCIHD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/DSD/SL_BUFFER_ADMIN_S 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_/DSD/SL_BUFFER_ADMIN_S 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_/DSD/SL_BUFFER_ADMIN_S INTO WA_/DSD/SL_BUFFER_ADMIN_S.


*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_/DSD/SL_BUFFER_ADMIN_S_STR, 
CLIENT TYPE STRING,
TOUR_ID TYPE STRING,
CHANGE_ID TYPE STRING,
LOCKED TYPE STRING,
CHANGED TYPE STRING,
CNG_DATE TYPE STRING,
CNG_TIME TYPE STRING,
CNG_USER TYPE STRING,
RAHD TYPE STRING,
RACTR TYPE STRING,
RACOCIHD TYPE STRING,
RACOCIMI TYPE STRING,
RACOCICI TYPE STRING,
RADS TYPE STRING,
RATS TYPE STRING,
RACVHD TYPE STRING,
RACAD TYPE STRING,
RADELHD TYPE STRING,
RADELIT TYPE STRING,
RADELCND TYPE STRING,
RAIVPRT TYPE STRING,
RAIVHD TYPE STRING,
RAIVIT TYPE STRING,
RAIVCND TYPE STRING,
RACL TYPE STRING,
RAEC TYPE STRING,
RAECA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/DSD/SL_BUFFER_ADMIN_S_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_/DSD/SL_BUFFER_ADMIN_S_STR-CLIENT sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-TOUR_ID sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-CHANGE_ID sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-LOCKED sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-CHANGED sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-CNG_DATE sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-CNG_TIME sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-CNG_USER sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RAHD sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RACTR sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RACOCIHD sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RACOCIMI sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RACOCICI sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RADS sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RATS sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RACVHD sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RACAD sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RADELHD sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RADELIT sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RADELCND sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RAIVPRT sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RAIVHD sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RAIVIT sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RAIVCND sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RACL sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RAEC sy-vline 
WA_/DSD/SL_BUFFER_ADMIN_S_STR-RAECA sy-vline      INTO ld_text SEPARATED BY SPACE.

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