ABAP Select data from SAP table HREIC_S_ACTIVITY_BUTTONS_VP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HREIC_S_ACTIVITY_BUTTONS_VP
*  INTO TABLE @DATA(IT_HREIC_S_ACTIVITY_BUTTONS_VP2).
*--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_HREIC_S_ACTIVITY_BUTTONS_VP INDEX 1 INTO DATA(WA_HREIC_S_ACTIVITY_BUTTONS_VP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HREIC_S_ACTIVITY_BUTTONS_VP>-SAVE_DIS = 1.
<HREIC_S_ACTIVITY_BUTTONS_VP>-PROCESS = 1.
<HREIC_S_ACTIVITY_BUTTONS_VP>-DISPLAY = 1.
<HREIC_S_ACTIVITY_BUTTONS_VP>-FORWARD = 1.
<HREIC_S_ACTIVITY_BUTTONS_VP>-ADDRELATEDACTIVITIES = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HREIC_S_ACTIVITY_BUTTONS_VP-GOTORELATEDACTIVITIES, sy-vline,
  WA_HREIC_S_ACTIVITY_BUTTONS_VP-SEL_FOR_CURR_CONT_DIS, sy-vline,
  WA_HREIC_S_ACTIVITY_BUTTONS_VP-ADD_CONTACT_DIS, sy-vline,
  WA_HREIC_S_ACTIVITY_BUTTONS_VP-NO_HIDE_DETAILS, sy-vline,
  WA_HREIC_S_ACTIVITY_BUTTONS_VP-NO_SHOW_DETAILS, sy-vline,
  WA_HREIC_S_ACTIVITY_BUTTONS_VP-SHOW_DETAILS_DIS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HREIC_S_ACTIVITY_BUTTONS_VP 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_HREIC_S_ACTIVITY_BUTTONS_VP 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_HREIC_S_ACTIVITY_BUTTONS_VP INTO WA_HREIC_S_ACTIVITY_BUTTONS_VP.


*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_HREIC_S_ACTIVITY_BUTTONS_VP_STR, 
SAVE_DIS TYPE STRING,
PROCESS TYPE STRING,
DISPLAY TYPE STRING,
FORWARD TYPE STRING,
ADDRELATEDACTIVITIES TYPE STRING,
GOTORELATEDACTIVITIES TYPE STRING,
SEL_FOR_CURR_CONT_DIS TYPE STRING,
ADD_CONTACT_DIS TYPE STRING,
NO_HIDE_DETAILS TYPE STRING,
NO_SHOW_DETAILS TYPE STRING,
SHOW_DETAILS_DIS TYPE STRING,
NO_NEW_ACTIVITY TYPE STRING,
FORWARD_DIS TYPE STRING,
SEND_BACK_DIS TYPE STRING,
COMPLETE_DIS TYPE STRING,
START_PROCESS TYPE STRING,
CP1_DISPLAY TYPE STRING,
PRINT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HREIC_S_ACTIVITY_BUTTONS_VP_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_HREIC_S_ACTIVITY_BUTTONS_VP_STR-SAVE_DIS sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-PROCESS sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-DISPLAY sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-FORWARD sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-ADDRELATEDACTIVITIES sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-GOTORELATEDACTIVITIES sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-SEL_FOR_CURR_CONT_DIS sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-ADD_CONTACT_DIS sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-NO_HIDE_DETAILS sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-NO_SHOW_DETAILS sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-SHOW_DETAILS_DIS sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-NO_NEW_ACTIVITY sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-FORWARD_DIS sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-SEND_BACK_DIS sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-COMPLETE_DIS sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-START_PROCESS sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-CP1_DISPLAY sy-vline 
WA_HREIC_S_ACTIVITY_BUTTONS_VP_STR-PRINT sy-vline      INTO ld_text SEPARATED BY SPACE.

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