ABAP Select data from SAP table OBJECT_INFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OBJECT_INFO
*  INTO TABLE @DATA(IT_OBJECT_INFO2).
*--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_OBJECT_INFO INDEX 1 INTO DATA(WA_OBJECT_INFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OBJECT_INFO>-OBJECT = 1.
<OBJECT_INFO>-DTELSOBJ = 1.
<OBJECT_INFO>-NRTAB = 1.
<OBJECT_INFO>-NRINTFLD = 1.
<OBJECT_INFO>-NREXTFLD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OBJECT_INFO-NRFLD, sy-vline,
  WA_OBJECT_INFO-NRSOBJFLD, sy-vline,
  WA_OBJECT_INFO-NRELEFLD, sy-vline,
  WA_OBJECT_INFO-YEARIND, sy-vline,
  WA_OBJECT_INFO-DOMLEN, sy-vline,
  WA_OBJECT_INFO-PERCENTAGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OBJECT_INFO 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_OBJECT_INFO 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_OBJECT_INFO INTO WA_OBJECT_INFO.


*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 DTYPE, internal->external for field NUMBERTYPE
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_OBJECT_INFO-NUMBERTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OBJECT_INFO-NUMBERTYPE.
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_OBJECT_INFO_STR, 
OBJECT TYPE STRING,
DTELSOBJ TYPE STRING,
NRTAB TYPE STRING,
NRINTFLD TYPE STRING,
NREXTFLD TYPE STRING,
NRFLD TYPE STRING,
NRSOBJFLD TYPE STRING,
NRELEFLD TYPE STRING,
YEARIND TYPE STRING,
DOMLEN TYPE STRING,
PERCENTAGE TYPE STRING,
CODE TYPE STRING,
TEXTIND TYPE STRING,
NRELTXTTAB TYPE STRING,
NRELTXTSOB TYPE STRING,
NRELTXTELE TYPE STRING,
NRELTXTTXT TYPE STRING,
NRELTXTLNG TYPE STRING,
BUFFER TYPE STRING,
NOIVBUFFER TYPE STRING,
NONRSWAP TYPE STRING,
RFCDEST TYPE STRING,
NRCHECKASCII TYPE STRING,
ABAP_LANGUAGE_VERSION TYPE STRING,
STATUS TYPE STRING,
CHANGED_AT TYPE STRING,
CHANGED_BY TYPE STRING,
UNAME TYPE STRING,
UDATE TYPE STRING,
UTIME TYPE STRING,
ENAME TYPE STRING,
EDATE TYPE STRING,
ETIME TYPE STRING,
IGNORE_GROUP TYPE STRING,
TXT TYPE STRING,
TXTSHORT TYPE STRING,
TYPE TYPE STRING,
NR_FIELDS TYPE STRING,
NUMBERTYPE TYPE STRING,
NUMBERLENGTH TYPE STRING,
NROBJLEN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OBJECT_INFO_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_OBJECT_INFO_STR-OBJECT sy-vline 
WA_OBJECT_INFO_STR-DTELSOBJ sy-vline 
WA_OBJECT_INFO_STR-NRTAB sy-vline 
WA_OBJECT_INFO_STR-NRINTFLD sy-vline 
WA_OBJECT_INFO_STR-NREXTFLD sy-vline 
WA_OBJECT_INFO_STR-NRFLD sy-vline 
WA_OBJECT_INFO_STR-NRSOBJFLD sy-vline 
WA_OBJECT_INFO_STR-NRELEFLD sy-vline 
WA_OBJECT_INFO_STR-YEARIND sy-vline 
WA_OBJECT_INFO_STR-DOMLEN sy-vline 
WA_OBJECT_INFO_STR-PERCENTAGE sy-vline 
WA_OBJECT_INFO_STR-CODE sy-vline 
WA_OBJECT_INFO_STR-TEXTIND sy-vline 
WA_OBJECT_INFO_STR-NRELTXTTAB sy-vline 
WA_OBJECT_INFO_STR-NRELTXTSOB sy-vline 
WA_OBJECT_INFO_STR-NRELTXTELE sy-vline 
WA_OBJECT_INFO_STR-NRELTXTTXT sy-vline 
WA_OBJECT_INFO_STR-NRELTXTLNG sy-vline 
WA_OBJECT_INFO_STR-BUFFER sy-vline 
WA_OBJECT_INFO_STR-NOIVBUFFER sy-vline 
WA_OBJECT_INFO_STR-NONRSWAP sy-vline 
WA_OBJECT_INFO_STR-RFCDEST sy-vline 
WA_OBJECT_INFO_STR-NRCHECKASCII sy-vline 
WA_OBJECT_INFO_STR-ABAP_LANGUAGE_VERSION sy-vline 
WA_OBJECT_INFO_STR-STATUS sy-vline 
WA_OBJECT_INFO_STR-CHANGED_AT sy-vline 
WA_OBJECT_INFO_STR-CHANGED_BY sy-vline 
WA_OBJECT_INFO_STR-UNAME sy-vline 
WA_OBJECT_INFO_STR-UDATE sy-vline 
WA_OBJECT_INFO_STR-UTIME sy-vline 
WA_OBJECT_INFO_STR-ENAME sy-vline 
WA_OBJECT_INFO_STR-EDATE sy-vline 
WA_OBJECT_INFO_STR-ETIME sy-vline 
WA_OBJECT_INFO_STR-IGNORE_GROUP sy-vline 
WA_OBJECT_INFO_STR-TXT sy-vline 
WA_OBJECT_INFO_STR-TXTSHORT sy-vline 
WA_OBJECT_INFO_STR-TYPE sy-vline 
WA_OBJECT_INFO_STR-NR_FIELDS sy-vline 
WA_OBJECT_INFO_STR-NUMBERTYPE sy-vline 
WA_OBJECT_INFO_STR-NUMBERLENGTH sy-vline 
WA_OBJECT_INFO_STR-NROBJLEN sy-vline      INTO ld_text SEPARATED BY SPACE.

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