ABAP Select data from SAP table OBJTABLE into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OBJTABLE 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 OBJTABLE. 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 OBJTABLE 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_OBJTABLE TYPE STANDARD TABLE OF OBJTABLE,
      WA_OBJTABLE TYPE OBJTABLE,
      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: <OBJTABLE> TYPE OBJTABLE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OBJTABLE
*  INTO TABLE @DATA(IT_OBJTABLE2).
*--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_OBJTABLE INDEX 1 INTO DATA(WA_OBJTABLE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OBJTABLE>-FELD1 = 1.
<OBJTABLE>-FELD2 = 1.
<OBJTABLE>-FELD3 = 1.
<OBJTABLE>-FELD4 = 1.
<OBJTABLE>-FELD5 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OBJTABLE-FELD6, sy-vline,
  WA_OBJTABLE-FELD7, sy-vline,
  WA_OBJTABLE-FELD8, sy-vline,
  WA_OBJTABLE-FELD9, sy-vline,
  WA_OBJTABLE-FELD10, sy-vline,
  WA_OBJTABLE-FELD11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OBJTABLE 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_OBJTABLE 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_OBJTABLE INTO WA_OBJTABLE.


*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_OBJTABLE_STR, 
FELD1 TYPE STRING,
FELD2 TYPE STRING,
FELD3 TYPE STRING,
FELD4 TYPE STRING,
FELD5 TYPE STRING,
FELD6 TYPE STRING,
FELD7 TYPE STRING,
FELD8 TYPE STRING,
FELD9 TYPE STRING,
FELD10 TYPE STRING,
FELD11 TYPE STRING,
FELD12 TYPE STRING,
FELD13 TYPE STRING,
FELD14 TYPE STRING,
FELD15 TYPE STRING,
DATIV TYPE STRING,
DATIB TYPE STRING,
DATPV TYPE STRING,
DATPB TYPE STRING,
MARK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OBJTABLE_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_OBJTABLE_STR-FELD1 sy-vline 
WA_OBJTABLE_STR-FELD2 sy-vline 
WA_OBJTABLE_STR-FELD3 sy-vline 
WA_OBJTABLE_STR-FELD4 sy-vline 
WA_OBJTABLE_STR-FELD5 sy-vline 
WA_OBJTABLE_STR-FELD6 sy-vline 
WA_OBJTABLE_STR-FELD7 sy-vline 
WA_OBJTABLE_STR-FELD8 sy-vline 
WA_OBJTABLE_STR-FELD9 sy-vline 
WA_OBJTABLE_STR-FELD10 sy-vline 
WA_OBJTABLE_STR-FELD11 sy-vline 
WA_OBJTABLE_STR-FELD12 sy-vline 
WA_OBJTABLE_STR-FELD13 sy-vline 
WA_OBJTABLE_STR-FELD14 sy-vline 
WA_OBJTABLE_STR-FELD15 sy-vline 
WA_OBJTABLE_STR-DATIV sy-vline 
WA_OBJTABLE_STR-DATIB sy-vline 
WA_OBJTABLE_STR-DATPV sy-vline 
WA_OBJTABLE_STR-DATPB sy-vline 
WA_OBJTABLE_STR-MARK sy-vline      INTO ld_text SEPARATED BY SPACE.

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