ABAP Select data from SAP table SIOOBJSTRU into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SIOOBJSTRU
*  INTO TABLE @DATA(IT_SIOOBJSTRU2).
*--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_SIOOBJSTRU INDEX 1 INTO DATA(WA_SIOOBJSTRU2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SIOOBJSTRU>-FOLTP = 1.
<SIOOBJSTRU>-FOLYR = 1.
<SIOOBJSTRU>-FOLNO = 1.
<SIOOBJSTRU>-OBJTP = 1.
<SIOOBJSTRU>-OBJYR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SIOOBJSTRU-OBJNO, sy-vline,
  WA_SIOOBJSTRU-FORTP, sy-vline,
  WA_SIOOBJSTRU-FORYR, sy-vline,
  WA_SIOOBJSTRU-FORNO, sy-vline,
  WA_SIOOBJSTRU-ATTTP, sy-vline,
  WA_SIOOBJSTRU-ATTYR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SIOOBJSTRU 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_SIOOBJSTRU 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_SIOOBJSTRU INTO WA_SIOOBJSTRU.


*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_SIOOBJSTRU_STR, 
FOLTP TYPE STRING,
FOLYR TYPE STRING,
FOLNO TYPE STRING,
OBJTP TYPE STRING,
OBJYR TYPE STRING,
OBJNO TYPE STRING,
FORTP TYPE STRING,
FORYR TYPE STRING,
FORNO TYPE STRING,
ATTTP TYPE STRING,
ATTYR TYPE STRING,
ATTNO TYPE STRING,
TYPE TYPE STRING,
ATT_TYPE TYPE STRING,
PROC_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SIOOBJSTRU_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_SIOOBJSTRU_STR-FOLTP sy-vline 
WA_SIOOBJSTRU_STR-FOLYR sy-vline 
WA_SIOOBJSTRU_STR-FOLNO sy-vline 
WA_SIOOBJSTRU_STR-OBJTP sy-vline 
WA_SIOOBJSTRU_STR-OBJYR sy-vline 
WA_SIOOBJSTRU_STR-OBJNO sy-vline 
WA_SIOOBJSTRU_STR-FORTP sy-vline 
WA_SIOOBJSTRU_STR-FORYR sy-vline 
WA_SIOOBJSTRU_STR-FORNO sy-vline 
WA_SIOOBJSTRU_STR-ATTTP sy-vline 
WA_SIOOBJSTRU_STR-ATTYR sy-vline 
WA_SIOOBJSTRU_STR-ATTNO sy-vline 
WA_SIOOBJSTRU_STR-TYPE sy-vline 
WA_SIOOBJSTRU_STR-ATT_TYPE sy-vline 
WA_SIOOBJSTRU_STR-PROC_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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