ABAP Select data from SAP table /SDF/AD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SDF/AD
*  INTO TABLE @DATA(IT_/SDF/AD2).
*--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_/SDF/AD INDEX 1 INTO DATA(WA_/SDF/AD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SDF/AD>-1 = 1.
</SDF/AD>-2 = 1.
</SDF/AD>-MONTY = 1.
</SDF/AD>-3 = 1.
</SDF/AD>-4 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SDF/AD-5, sy-vline,
  WA_/SDF/AD-6, sy-vline,
  WA_/SDF/AD-7, sy-vline,
  WA_/SDF/AD-8, sy-vline,
  WA_/SDF/AD-INFO1, sy-vline,
  WA_/SDF/AD-INFO2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SDF/AD 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_/SDF/AD 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_/SDF/AD INTO WA_/SDF/AD.


*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_/SDF/AD_STR, 
1 TYPE STRING,
2 TYPE STRING,
MONTY TYPE STRING,
3 TYPE STRING,
4 TYPE STRING,
5 TYPE STRING,
6 TYPE STRING,
7 TYPE STRING,
8 TYPE STRING,
INFO1 TYPE STRING,
INFO2 TYPE STRING,
INFO3 TYPE STRING,
INFO4 TYPE STRING,
INFO5 TYPE STRING,
INFO6 TYPE STRING,
INFO7 TYPE STRING,
INFO8 TYPE STRING,
INFO9 TYPE STRING,
INFO10 TYPE STRING,
OBJECT1 TYPE STRING,
OBJECT2 TYPE STRING,
OBJECT3 TYPE STRING,
VALUE TYPE STRING,
DATE1 TYPE STRING,
TIME1 TYPE STRING,
REF_MONID TYPE STRING,
SOLMAN_SID TYPE STRING,
SOLMAN_INST TYPE STRING,
CONTEXT_ID TYPE STRING,
METRIC_ID TYPE STRING,
USER1 TYPE STRING,
COUNTER1 TYPE STRING,
DECIMALS1 TYPE STRING,
COUNTER2 TYPE STRING,
DECIMALS2 TYPE STRING,
COUNTER3 TYPE STRING,
DECIMALS3 TYPE STRING,
PROGRAMM TYPE STRING,
TCODE TYPE STRING,
OPMODE TYPE STRING,
MSGTY TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
UPDOPS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SDF/AD_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_/SDF/AD_STR-1 sy-vline 
WA_/SDF/AD_STR-2 sy-vline 
WA_/SDF/AD_STR-MONTY sy-vline 
WA_/SDF/AD_STR-3 sy-vline 
WA_/SDF/AD_STR-4 sy-vline 
WA_/SDF/AD_STR-5 sy-vline 
WA_/SDF/AD_STR-6 sy-vline 
WA_/SDF/AD_STR-7 sy-vline 
WA_/SDF/AD_STR-8 sy-vline 
WA_/SDF/AD_STR-INFO1 sy-vline 
WA_/SDF/AD_STR-INFO2 sy-vline 
WA_/SDF/AD_STR-INFO3 sy-vline 
WA_/SDF/AD_STR-INFO4 sy-vline 
WA_/SDF/AD_STR-INFO5 sy-vline 
WA_/SDF/AD_STR-INFO6 sy-vline 
WA_/SDF/AD_STR-INFO7 sy-vline 
WA_/SDF/AD_STR-INFO8 sy-vline 
WA_/SDF/AD_STR-INFO9 sy-vline 
WA_/SDF/AD_STR-INFO10 sy-vline 
WA_/SDF/AD_STR-OBJECT1 sy-vline 
WA_/SDF/AD_STR-OBJECT2 sy-vline 
WA_/SDF/AD_STR-OBJECT3 sy-vline 
WA_/SDF/AD_STR-VALUE sy-vline 
WA_/SDF/AD_STR-DATE1 sy-vline 
WA_/SDF/AD_STR-TIME1 sy-vline 
WA_/SDF/AD_STR-REF_MONID sy-vline 
WA_/SDF/AD_STR-SOLMAN_SID sy-vline 
WA_/SDF/AD_STR-SOLMAN_INST sy-vline 
WA_/SDF/AD_STR-CONTEXT_ID sy-vline 
WA_/SDF/AD_STR-METRIC_ID sy-vline 
WA_/SDF/AD_STR-USER1 sy-vline 
WA_/SDF/AD_STR-COUNTER1 sy-vline 
WA_/SDF/AD_STR-DECIMALS1 sy-vline 
WA_/SDF/AD_STR-COUNTER2 sy-vline 
WA_/SDF/AD_STR-DECIMALS2 sy-vline 
WA_/SDF/AD_STR-COUNTER3 sy-vline 
WA_/SDF/AD_STR-DECIMALS3 sy-vline 
WA_/SDF/AD_STR-PROGRAMM sy-vline 
WA_/SDF/AD_STR-TCODE sy-vline 
WA_/SDF/AD_STR-OPMODE sy-vline 
WA_/SDF/AD_STR-MSGTY sy-vline 
WA_/SDF/AD_STR-MSGID sy-vline 
WA_/SDF/AD_STR-MSGNO sy-vline 
WA_/SDF/AD_STR-UPDOPS sy-vline      INTO ld_text SEPARATED BY SPACE.

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