ABAP Select data from SAP table OMOBJSTR_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OMOBJSTR_S
*  INTO TABLE @DATA(IT_OMOBJSTR_S2).
*--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_OMOBJSTR_S INDEX 1 INTO DATA(WA_OMOBJSTR_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OMOBJSTR_S>-OBJEC = 1.
<OMOBJSTR_S>-PLVAR = 1.
<OMOBJSTR_S>-OTYPE = 1.
<OMOBJSTR_S>-OBJID = 1.
<OMOBJSTR_S>-BEGDA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OMOBJSTR_S-ENDDA, sy-vline,
  WA_OMOBJSTR_S-ISTAT, sy-vline,
  WA_OMOBJSTR_S-HISTO, sy-vline,
  WA_OMOBJSTR_S-SHORT, sy-vline,
  WA_OMOBJSTR_S-STEXT, sy-vline,
  WA_OMOBJSTR_S-REALO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OMOBJSTR_S 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_OMOBJSTR_S 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_OMOBJSTR_S INTO WA_OMOBJSTR_S.


*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_OMOBJSTR_S_STR, 
OBJEC TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
ISTAT TYPE STRING,
HISTO TYPE STRING,
SHORT TYPE STRING,
STEXT TYPE STRING,
REALO TYPE STRING,
STRUC TYPE STRING,
SEQNR TYPE STRING,
LEVEL TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
PDOWN TYPE STRING,
DFLAG TYPE STRING,
VCOUNT TYPE STRING,
PNEXT TYPE STRING,
PUP TYPE STRING,
PPREV TYPE STRING,
VRSIGN TYPE STRING,
VRELAT TYPE STRING,
VPRIOX TYPE STRING,
VISTAT TYPE STRING,
VBEGDA TYPE STRING,
VENDDA TYPE STRING,
VPROZT TYPE STRING,
VADATA TYPE STRING,
SUBRC TYPE STRING,
RFLAG TYPE STRING,
SBEGD TYPE STRING,
SENDD TYPE STRING,
VSIGN TYPE STRING,
VSEQNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OMOBJSTR_S_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_OMOBJSTR_S_STR-OBJEC sy-vline 
WA_OMOBJSTR_S_STR-PLVAR sy-vline 
WA_OMOBJSTR_S_STR-OTYPE sy-vline 
WA_OMOBJSTR_S_STR-OBJID sy-vline 
WA_OMOBJSTR_S_STR-BEGDA sy-vline 
WA_OMOBJSTR_S_STR-ENDDA sy-vline 
WA_OMOBJSTR_S_STR-ISTAT sy-vline 
WA_OMOBJSTR_S_STR-HISTO sy-vline 
WA_OMOBJSTR_S_STR-SHORT sy-vline 
WA_OMOBJSTR_S_STR-STEXT sy-vline 
WA_OMOBJSTR_S_STR-REALO sy-vline 
WA_OMOBJSTR_S_STR-STRUC sy-vline 
WA_OMOBJSTR_S_STR-SEQNR sy-vline 
WA_OMOBJSTR_S_STR-LEVEL sy-vline 
WA_OMOBJSTR_S_STR-OTYPE sy-vline 
WA_OMOBJSTR_S_STR-OBJID sy-vline 
WA_OMOBJSTR_S_STR-PDOWN sy-vline 
WA_OMOBJSTR_S_STR-DFLAG sy-vline 
WA_OMOBJSTR_S_STR-VCOUNT sy-vline 
WA_OMOBJSTR_S_STR-PNEXT sy-vline 
WA_OMOBJSTR_S_STR-PUP sy-vline 
WA_OMOBJSTR_S_STR-PPREV sy-vline 
WA_OMOBJSTR_S_STR-VRSIGN sy-vline 
WA_OMOBJSTR_S_STR-VRELAT sy-vline 
WA_OMOBJSTR_S_STR-VPRIOX sy-vline 
WA_OMOBJSTR_S_STR-VISTAT sy-vline 
WA_OMOBJSTR_S_STR-VBEGDA sy-vline 
WA_OMOBJSTR_S_STR-VENDDA sy-vline 
WA_OMOBJSTR_S_STR-VPROZT sy-vline 
WA_OMOBJSTR_S_STR-VADATA sy-vline 
WA_OMOBJSTR_S_STR-SUBRC sy-vline 
WA_OMOBJSTR_S_STR-RFLAG sy-vline 
WA_OMOBJSTR_S_STR-SBEGD sy-vline 
WA_OMOBJSTR_S_STR-SENDD sy-vline 
WA_OMOBJSTR_S_STR-VSIGN sy-vline 
WA_OMOBJSTR_S_STR-VSEQNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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