ABAP Select data from SAP table IACOBJINFO into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IACOBJINFO
*  INTO TABLE @DATA(IT_IACOBJINFO2).
*--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_IACOBJINFO INDEX 1 INTO DATA(WA_IACOBJINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IACOBJINFO>-TYPE = 1.
<IACOBJINFO>-SERVICE = 1.
<IACOBJINFO>-THEME = 1.
<IACOBJINFO>-LANGU = 1.
<IACOBJINFO>-DYNPRO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IACOBJINFO-MODULPOOL, sy-vline,
  WA_IACOBJINFO-MIMENAME, sy-vline,
  WA_IACOBJINFO-LAISO, sy-vline,
  WA_IACOBJINFO-LONGMODUL, sy-vline,
  WA_IACOBJINFO-LONGMIME, sy-vline,
  WA_IACOBJINFO-TROBJTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IACOBJINFO 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_IACOBJINFO 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_IACOBJINFO INTO WA_IACOBJINFO.


*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.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_IACOBJINFO-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACOBJINFO-LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field MASTERLANG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_IACOBJINFO-MASTERLANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACOBJINFO-MASTERLANG.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_IACOBJINFO_STR, 
TYPE TYPE STRING,
SERVICE TYPE STRING,
THEME TYPE STRING,
LANGU TYPE STRING,
DYNPRO TYPE STRING,
MODULPOOL TYPE STRING,
MIMENAME TYPE STRING,
LAISO TYPE STRING,
LONGMODUL TYPE STRING,
LONGMIME TYPE STRING,
TROBJTYPE TYPE STRING,
TROBJNAME TYPE STRING,
TRKORR TYPE STRING,
CICOTOOL TYPE STRING,
CICOLOCO TYPE STRING,
CICOUSER TYPE STRING,
CICOOWNLCK TYPE STRING,
OBJEXISTS TYPE STRING,
CHANGEABLE TYPE STRING,
MULTILANG TYPE STRING,
MASTERLANG TYPE STRING,
MASTERLISO TYPE STRING,
ERROBJECT TYPE STRING,
ERROBJLANG TYPE STRING,
WARCICO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IACOBJINFO_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_IACOBJINFO_STR-TYPE sy-vline 
WA_IACOBJINFO_STR-SERVICE sy-vline 
WA_IACOBJINFO_STR-THEME sy-vline 
WA_IACOBJINFO_STR-LANGU sy-vline 
WA_IACOBJINFO_STR-DYNPRO sy-vline 
WA_IACOBJINFO_STR-MODULPOOL sy-vline 
WA_IACOBJINFO_STR-MIMENAME sy-vline 
WA_IACOBJINFO_STR-LAISO sy-vline 
WA_IACOBJINFO_STR-LONGMODUL sy-vline 
WA_IACOBJINFO_STR-LONGMIME sy-vline 
WA_IACOBJINFO_STR-TROBJTYPE sy-vline 
WA_IACOBJINFO_STR-TROBJNAME sy-vline 
WA_IACOBJINFO_STR-TRKORR sy-vline 
WA_IACOBJINFO_STR-CICOTOOL sy-vline 
WA_IACOBJINFO_STR-CICOLOCO sy-vline 
WA_IACOBJINFO_STR-CICOUSER sy-vline 
WA_IACOBJINFO_STR-CICOOWNLCK sy-vline 
WA_IACOBJINFO_STR-OBJEXISTS sy-vline 
WA_IACOBJINFO_STR-CHANGEABLE sy-vline 
WA_IACOBJINFO_STR-MULTILANG sy-vline 
WA_IACOBJINFO_STR-MASTERLANG sy-vline 
WA_IACOBJINFO_STR-MASTERLISO sy-vline 
WA_IACOBJINFO_STR-ERROBJECT sy-vline 
WA_IACOBJINFO_STR-ERROBJLANG sy-vline 
WA_IACOBJINFO_STR-WARCICO sy-vline      INTO ld_text SEPARATED BY SPACE.

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