ABAP Select data from SAP table IOBJASSETDOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IOBJASSETDOC
*  INTO TABLE @DATA(IT_IOBJASSETDOC2).
*--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_IOBJASSETDOC INDEX 1 INTO DATA(WA_IOBJASSETDOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IOBJASSETDOC>-MANDT = 1.
<IOBJASSETDOC>-OBJECTASSETDOCUUID = 1.
<IOBJASSETDOC>-OBJECTASSETUUID = 1.
<IOBJASSETDOC>-OBJECTASSETDOCREFERENCENUMBER = 1.
<IOBJASSETDOC>-OBJECTASSETDOCTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IOBJASSETDOC-OBJECTASSETDOCDATE, sy-vline,
  WA_IOBJASSETDOC-OBJECTASSETDOCPHYSICALLOCATION, sy-vline,
  WA_IOBJASSETDOC-OBJECTASSETDOCVALIDFROMDATE, sy-vline,
  WA_IOBJASSETDOC-OBJECTASSETDOCVALIDTODATE, sy-vline,
  WA_IOBJASSETDOC-OBJECTASSETREFERENCESYSTEM, sy-vline,
  WA_IOBJASSETDOC-LIQUIDATIONOBJECTREFSYSTEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IOBJASSETDOC 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_IOBJASSETDOC 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_IOBJASSETDOC INTO WA_IOBJASSETDOC.


*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_IOBJASSETDOC_STR, 
MANDT TYPE STRING,
OBJECTASSETDOCUUID TYPE STRING,
OBJECTASSETUUID TYPE STRING,
OBJECTASSETDOCREFERENCENUMBER TYPE STRING,
OBJECTASSETDOCTYPE TYPE STRING,
OBJECTASSETDOCDATE TYPE STRING,
OBJECTASSETDOCPHYSICALLOCATION TYPE STRING,
OBJECTASSETDOCVALIDFROMDATE TYPE STRING,
OBJECTASSETDOCVALIDTODATE TYPE STRING,
OBJECTASSETREFERENCESYSTEM TYPE STRING,
LIQUIDATIONOBJECTREFSYSTEM TYPE STRING,
INSURANCEOBJECTCATEGORY TYPE STRING,
MOVABLEOBJECTUUID TYPE STRING,
RIGHTSOBJECTUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IOBJASSETDOC_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_IOBJASSETDOC_STR-MANDT sy-vline 
WA_IOBJASSETDOC_STR-OBJECTASSETDOCUUID sy-vline 
WA_IOBJASSETDOC_STR-OBJECTASSETUUID sy-vline 
WA_IOBJASSETDOC_STR-OBJECTASSETDOCREFERENCENUMBER sy-vline 
WA_IOBJASSETDOC_STR-OBJECTASSETDOCTYPE sy-vline 
WA_IOBJASSETDOC_STR-OBJECTASSETDOCDATE sy-vline 
WA_IOBJASSETDOC_STR-OBJECTASSETDOCPHYSICALLOCATION sy-vline 
WA_IOBJASSETDOC_STR-OBJECTASSETDOCVALIDFROMDATE sy-vline 
WA_IOBJASSETDOC_STR-OBJECTASSETDOCVALIDTODATE sy-vline 
WA_IOBJASSETDOC_STR-OBJECTASSETREFERENCESYSTEM sy-vline 
WA_IOBJASSETDOC_STR-LIQUIDATIONOBJECTREFSYSTEM sy-vline 
WA_IOBJASSETDOC_STR-INSURANCEOBJECTCATEGORY sy-vline 
WA_IOBJASSETDOC_STR-MOVABLEOBJECTUUID sy-vline 
WA_IOBJASSETDOC_STR-RIGHTSOBJECTUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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