ABAP Select data from SAP table HAPCN_S_OBJECTIVE_RESULT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HAPCN_S_OBJECTIVE_RESULT
*  INTO TABLE @DATA(IT_HAPCN_S_OBJECTIVE_RESULT2).
*--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_HAPCN_S_OBJECTIVE_RESULT INDEX 1 INTO DATA(WA_HAPCN_S_OBJECTIVE_RESULT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HAPCN_S_OBJECTIVE_RESULT>-APPRESLT = 1.
<HAPCN_S_OBJECTIVE_RESULT>-EMPNAME = 1.
<HAPCN_S_OBJECTIVE_RESULT>-APPID = 1.
<HAPCN_S_OBJECTIVE_RESULT>-PARTID = 1.
<HAPCN_S_OBJECTIVE_RESULT>-PLANV = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HAPCN_S_OBJECTIVE_RESULT-EMPID, sy-vline,
  WA_HAPCN_S_OBJECTIVE_RESULT-PEFLAG, sy-vline,
  WA_HAPCN_S_OBJECTIVE_RESULT-REFCOLID, sy-vline,
  WA_HAPCN_S_OBJECTIVE_RESULT-VISIBILITY, sy-vline,
  WA_HAPCN_S_OBJECTIVE_RESULT-EMPTYPE, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_HAPCN_S_OBJECTIVE_RESULT 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_HAPCN_S_OBJECTIVE_RESULT 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_HAPCN_S_OBJECTIVE_RESULT INTO WA_HAPCN_S_OBJECTIVE_RESULT.


*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_HAPCN_S_OBJECTIVE_RESULT_STR, 
APPRESLT TYPE STRING,
EMPNAME TYPE STRING,
APPID TYPE STRING,
PARTID TYPE STRING,
PLANV TYPE STRING,
EMPID TYPE STRING,
PEFLAG TYPE STRING,
REFCOLID TYPE STRING,
VISIBILITY TYPE STRING,
EMPTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HAPCN_S_OBJECTIVE_RESULT_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_HAPCN_S_OBJECTIVE_RESULT_STR-APPRESLT sy-vline 
WA_HAPCN_S_OBJECTIVE_RESULT_STR-EMPNAME sy-vline 
WA_HAPCN_S_OBJECTIVE_RESULT_STR-APPID sy-vline 
WA_HAPCN_S_OBJECTIVE_RESULT_STR-PARTID sy-vline 
WA_HAPCN_S_OBJECTIVE_RESULT_STR-PLANV sy-vline 
WA_HAPCN_S_OBJECTIVE_RESULT_STR-EMPID sy-vline 
WA_HAPCN_S_OBJECTIVE_RESULT_STR-PEFLAG sy-vline 
WA_HAPCN_S_OBJECTIVE_RESULT_STR-REFCOLID sy-vline 
WA_HAPCN_S_OBJECTIVE_RESULT_STR-VISIBILITY sy-vline 
WA_HAPCN_S_OBJECTIVE_RESULT_STR-EMPTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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