ABAP Select data from SAP table P23_SADT_FORM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P23_SADT_FORM 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 P23_SADT_FORM. 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 P23_SADT_FORM 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_P23_SADT_FORM TYPE STANDARD TABLE OF P23_SADT_FORM,
      WA_P23_SADT_FORM TYPE P23_SADT_FORM,
      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: <P23_SADT_FORM> TYPE P23_SADT_FORM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P23_SADT_FORM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P23_SADT_FORM
  INTO TABLE IT_P23_SADT_FORM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P23_SADT_FORM
*  INTO TABLE @DATA(IT_P23_SADT_FORM2).
*--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_P23_SADT_FORM INDEX 1 INTO DATA(WA_P23_SADT_FORM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P23_SADT_FORM ASSIGNING <P23_SADT_FORM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P23_SADT_FORM>-SICKDAY_FIRST = 1.
<P23_SADT_FORM>-PERNR = 1.
<P23_SADT_FORM>-NAME = 1.
<P23_SADT_FORM>-NAME2 = 1.
<P23_SADT_FORM>-STRAS = 1.

ENDLOOP.

LOOP AT IT_P23_SADT_FORM INTO WA_P23_SADT_FORM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P23_SADT_FORM-PSTLZ, sy-vline,
  WA_P23_SADT_FORM-ORT01, sy-vline,
  WA_P23_SADT_FORM-BEGDA, sy-vline,
  WA_P23_SADT_FORM-ENDDA, sy-vline,
  WA_P23_SADT_FORM-TOTDAYS, sy-vline,
  WA_P23_SADT_FORM-SICKDAY_SEVEN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P23_SADT_FORM 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_P23_SADT_FORM 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_P23_SADT_FORM INTO WA_P23_SADT_FORM.


*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_P23_SADT_FORM_STR, 
SICKDAY_FIRST TYPE STRING,
PERNR TYPE STRING,
NAME TYPE STRING,
NAME2 TYPE STRING,
STRAS TYPE STRING,
PSTLZ TYPE STRING,
ORT01 TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
TOTDAYS TYPE STRING,
SICKDAY_SEVEN TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
LOC TYPE STRING,
BUTXT TYPE STRING,
NAME1 TYPE STRING,
BTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P23_SADT_FORM_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_P23_SADT_FORM_STR-SICKDAY_FIRST sy-vline 
WA_P23_SADT_FORM_STR-PERNR sy-vline 
WA_P23_SADT_FORM_STR-NAME sy-vline 
WA_P23_SADT_FORM_STR-NAME2 sy-vline 
WA_P23_SADT_FORM_STR-STRAS sy-vline 
WA_P23_SADT_FORM_STR-PSTLZ sy-vline 
WA_P23_SADT_FORM_STR-ORT01 sy-vline 
WA_P23_SADT_FORM_STR-BEGDA sy-vline 
WA_P23_SADT_FORM_STR-ENDDA sy-vline 
WA_P23_SADT_FORM_STR-TOTDAYS sy-vline 
WA_P23_SADT_FORM_STR-SICKDAY_SEVEN sy-vline 
WA_P23_SADT_FORM_STR-BUKRS sy-vline 
WA_P23_SADT_FORM_STR-WERKS sy-vline 
WA_P23_SADT_FORM_STR-BTRTL sy-vline 
WA_P23_SADT_FORM_STR-LOC sy-vline 
WA_P23_SADT_FORM_STR-BUTXT sy-vline 
WA_P23_SADT_FORM_STR-NAME1 sy-vline 
WA_P23_SADT_FORM_STR-BTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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