ABAP Select data from SAP table OLR3_DMS_TS_OBJLINK_FB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OLR3_DMS_TS_OBJLINK_FB 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 OLR3_DMS_TS_OBJLINK_FB. 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 OLR3_DMS_TS_OBJLINK_FB 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_OLR3_DMS_TS_OBJLINK_FB TYPE STANDARD TABLE OF OLR3_DMS_TS_OBJLINK_FB,
      WA_OLR3_DMS_TS_OBJLINK_FB TYPE OLR3_DMS_TS_OBJLINK_FB,
      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: <OLR3_DMS_TS_OBJLINK_FB> TYPE OLR3_DMS_TS_OBJLINK_FB.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OLR3_DMS_TS_OBJLINK_FB.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OLR3_DMS_TS_OBJLINK_FB
  INTO TABLE IT_OLR3_DMS_TS_OBJLINK_FB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OLR3_DMS_TS_OBJLINK_FB
*  INTO TABLE @DATA(IT_OLR3_DMS_TS_OBJLINK_FB2).
*--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_OLR3_DMS_TS_OBJLINK_FB INDEX 1 INTO DATA(WA_OLR3_DMS_TS_OBJLINK_FB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OLR3_DMS_TS_OBJLINK_FB ASSIGNING <OLR3_DMS_TS_OBJLINK_FB>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OLR3_DMS_TS_OBJLINK_FB>-GUID = 1.
<OLR3_DMS_TS_OBJLINK_FB>-PROJECT_GUID = 1.
<OLR3_DMS_TS_OBJLINK_FB>-TASK_GUID = 1.
<OLR3_DMS_TS_OBJLINK_FB>-OBJECT_TYPE = 1.
<OLR3_DMS_TS_OBJLINK_FB>-CATEGORY = 1.

ENDLOOP.

LOOP AT IT_OLR3_DMS_TS_OBJLINK_FB INTO WA_OLR3_DMS_TS_OBJLINK_FB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OLR3_DMS_TS_OBJLINK_FB-CREATED_BY, sy-vline,
  WA_OLR3_DMS_TS_OBJLINK_FB-CREATED_ON, sy-vline,
  WA_OLR3_DMS_TS_OBJLINK_FB-CHANGED_BY, sy-vline,
  WA_OLR3_DMS_TS_OBJLINK_FB-CHANGED_ON, sy-vline,
  WA_OLR3_DMS_TS_OBJLINK_FB-INT_ID, sy-vline,
  WA_OLR3_DMS_TS_OBJLINK_FB-EXT_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OLR3_DMS_TS_OBJLINK_FB 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_OLR3_DMS_TS_OBJLINK_FB 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_OLR3_DMS_TS_OBJLINK_FB INTO WA_OLR3_DMS_TS_OBJLINK_FB.


*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 ALPHA, internal->external for field DOKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OLR3_DMS_TS_OBJLINK_FB-DOKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OLR3_DMS_TS_OBJLINK_FB-DOKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_OLR3_DMS_TS_OBJLINK_FB-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OLR3_DMS_TS_OBJLINK_FB-LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OLR3_DMS_TS_OBJLINK_FB-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OLR3_DMS_TS_OBJLINK_FB-LOGSYS.
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_OLR3_DMS_TS_OBJLINK_FB_STR, 
GUID TYPE STRING,
PROJECT_GUID TYPE STRING,
TASK_GUID TYPE STRING,
OBJECT_TYPE TYPE STRING,
CATEGORY TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_ON TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_ON TYPE STRING,
INT_ID TYPE STRING,
EXT_ID TYPE STRING,
DESCR TYPE STRING,
DOKNR TYPE STRING,
DOKAR TYPE STRING,
DOKTL TYPE STRING,
DOKVR TYPE STRING,
LANGU TYPE STRING,
DESCRIPTION TYPE STRING,
UPDMODE TYPE STRING,
LOGSYS TYPE STRING,
PARENT_OBJTYPE TYPE STRING,
PARENT_OBJTYPE_T TYPE STRING,
PARENT_EXTID TYPE STRING,
PARENT_DESCR TYPE STRING,
PROJ_EXTID TYPE STRING,
PROJ_KTEXT TYPE STRING,
IGNORE_LINKS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OLR3_DMS_TS_OBJLINK_FB_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_OLR3_DMS_TS_OBJLINK_FB_STR-GUID sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-PROJECT_GUID sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-TASK_GUID sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-OBJECT_TYPE sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-CATEGORY sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-CREATED_BY sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-CREATED_ON sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-CHANGED_BY sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-CHANGED_ON sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-INT_ID sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-EXT_ID sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-DESCR sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-DOKNR sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-DOKAR sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-DOKTL sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-DOKVR sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-LANGU sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-DESCRIPTION sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-UPDMODE sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-LOGSYS sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-PARENT_OBJTYPE sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-PARENT_OBJTYPE_T sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-PARENT_EXTID sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-PARENT_DESCR sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-PROJ_EXTID sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-PROJ_KTEXT sy-vline 
WA_OLR3_DMS_TS_OBJLINK_FB_STR-IGNORE_LINKS sy-vline      INTO ld_text SEPARATED BY SPACE.

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