ABAP Select data from SAP table DPR_TS_API_PSS_BUPA_LINK_O into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DPR_TS_API_PSS_BUPA_LINK_O
*  INTO TABLE @DATA(IT_DPR_TS_API_PSS_BUPA_LINK_O2).
*--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_DPR_TS_API_PSS_BUPA_LINK_O INDEX 1 INTO DATA(WA_DPR_TS_API_PSS_BUPA_LINK_O2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DPR_TS_API_PSS_BUPA_LINK_O>-STAFFINGLINK_GUID = 1.
<DPR_TS_API_PSS_BUPA_LINK_O>-PARTICIPANT_GUID = 1.
<DPR_TS_API_PSS_BUPA_LINK_O>-PROJECT_DEFINITION_GUID = 1.
<DPR_TS_API_PSS_BUPA_LINK_O>-TASK_GUID = 1.
<DPR_TS_API_PSS_BUPA_LINK_O>-ROLE_GUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DPR_TS_API_PSS_BUPA_LINK_O-PARTNER_GUID, sy-vline,
  WA_DPR_TS_API_PSS_BUPA_LINK_O-DESCRIPTION, sy-vline,
  WA_DPR_TS_API_PSS_BUPA_LINK_O-DESCRIPTION_FC, sy-vline,
  WA_DPR_TS_API_PSS_BUPA_LINK_O-FIRST_NAME, sy-vline,
  WA_DPR_TS_API_PSS_BUPA_LINK_O-FIRST_NAME_FC, sy-vline,
  WA_DPR_TS_API_PSS_BUPA_LINK_O-LAST_NAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DPR_TS_API_PSS_BUPA_LINK_O 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_DPR_TS_API_PSS_BUPA_LINK_O 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_DPR_TS_API_PSS_BUPA_LINK_O INTO WA_DPR_TS_API_PSS_BUPA_LINK_O.


*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 BUPA_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DPR_TS_API_PSS_BUPA_LINK_O-BUPA_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DPR_TS_API_PSS_BUPA_LINK_O-BUPA_NUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WORK_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DPR_TS_API_PSS_BUPA_LINK_O-WORK_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DPR_TS_API_PSS_BUPA_LINK_O-WORK_UNIT.
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_DPR_TS_API_PSS_BUPA_LINK_O_STR, 
STAFFINGLINK_GUID TYPE STRING,
PARTICIPANT_GUID TYPE STRING,
PROJECT_DEFINITION_GUID TYPE STRING,
TASK_GUID TYPE STRING,
ROLE_GUID TYPE STRING,
PARTNER_GUID TYPE STRING,
DESCRIPTION TYPE STRING,
DESCRIPTION_FC TYPE STRING,
FIRST_NAME TYPE STRING,
FIRST_NAME_FC TYPE STRING,
LAST_NAME TYPE STRING,
LAST_NAME_FC TYPE STRING,
USER_NAME TYPE STRING,
USER_NAME_FC TYPE STRING,
BUPA_NUMBER TYPE STRING,
BUPA_NUMBER_FC TYPE STRING,
WORK_EFFORT TYPE STRING,
WORK_EFFORT_FC TYPE STRING,
WORK_UNIT TYPE STRING,
WORK_UNIT_FC TYPE STRING,
WORK_UNIT_TEXT TYPE STRING,
WORK_UNIT_TEXT_FC TYPE STRING,
BEGIN_DATE TYPE STRING,
BEGIN_DATE_FC TYPE STRING,
END_DATE TYPE STRING,
END_DATE_FC TYPE STRING,
RESPONSIBLE TYPE STRING,
RESPONSIBLE_FC TYPE STRING,
CHNGIND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DPR_TS_API_PSS_BUPA_LINK_O_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_DPR_TS_API_PSS_BUPA_LINK_O_STR-STAFFINGLINK_GUID sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-PARTICIPANT_GUID sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-PROJECT_DEFINITION_GUID sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-TASK_GUID sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-ROLE_GUID sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-PARTNER_GUID sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-DESCRIPTION sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-DESCRIPTION_FC sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-FIRST_NAME sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-FIRST_NAME_FC sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-LAST_NAME sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-LAST_NAME_FC sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-USER_NAME sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-USER_NAME_FC sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-BUPA_NUMBER sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-BUPA_NUMBER_FC sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-WORK_EFFORT sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-WORK_EFFORT_FC sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-WORK_UNIT sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-WORK_UNIT_FC sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-WORK_UNIT_TEXT sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-WORK_UNIT_TEXT_FC sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-BEGIN_DATE sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-BEGIN_DATE_FC sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-END_DATE sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-END_DATE_FC sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-RESPONSIBLE sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-RESPONSIBLE_FC sy-vline 
WA_DPR_TS_API_PSS_BUPA_LINK_O_STR-CHNGIND sy-vline      INTO ld_text SEPARATED BY SPACE.

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