ABAP Select data from SAP table FINCS_S_USEL_HIER_TREE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FINCS_S_USEL_HIER_TREE
*  INTO TABLE @DATA(IT_FINCS_S_USEL_HIER_TREE2).
*--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_FINCS_S_USEL_HIER_TREE INDEX 1 INTO DATA(WA_FINCS_S_USEL_HIER_TREE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FINCS_S_USEL_HIER_TREE>-MANDT = 1.
<FINCS_S_USEL_HIER_TREE>-HRYID = 1.
<FINCS_S_USEL_HIER_TREE>-HRYVER = 1.
<FINCS_S_USEL_HIER_TREE>-NODECLS = 1.
<FINCS_S_USEL_HIER_TREE>-HRYNODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FINCS_S_USEL_HIER_TREE-PARNODE, sy-vline,
  WA_FINCS_S_USEL_HIER_TREE-HRYVALTO, sy-vline,
  WA_FINCS_S_USEL_HIER_TREE-HRYVALFROM, sy-vline,
  WA_FINCS_S_USEL_HIER_TREE-BALIND, sy-vline,
  WA_FINCS_S_USEL_HIER_TREE-NODETYPE, sy-vline,
  WA_FINCS_S_USEL_HIER_TREE-NODEVALUE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FINCS_S_USEL_HIER_TREE 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_FINCS_S_USEL_HIER_TREE 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_FINCS_S_USEL_HIER_TREE INTO WA_FINCS_S_USEL_HIER_TREE.


*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_FINCS_S_USEL_HIER_TREE_STR, 
MANDT TYPE STRING,
HRYID TYPE STRING,
HRYVER TYPE STRING,
NODECLS TYPE STRING,
HRYNODE TYPE STRING,
PARNODE TYPE STRING,
HRYVALTO TYPE STRING,
HRYVALFROM TYPE STRING,
BALIND TYPE STRING,
NODETYPE TYPE STRING,
NODEVALUE TYPE STRING,
HRYSEQNBR TYPE STRING,
HRYLEVEL TYPE STRING,
HRYTYPE TYPE STRING,
LEAFVALUE TYPE STRING,
UHNODEID TYPE STRING,
NODETXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FINCS_S_USEL_HIER_TREE_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_FINCS_S_USEL_HIER_TREE_STR-MANDT sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-HRYID sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-HRYVER sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-NODECLS sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-HRYNODE sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-PARNODE sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-HRYVALTO sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-HRYVALFROM sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-BALIND sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-NODETYPE sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-NODEVALUE sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-HRYSEQNBR sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-HRYLEVEL sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-HRYTYPE sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-LEAFVALUE sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-UHNODEID sy-vline 
WA_FINCS_S_USEL_HIER_TREE_STR-NODETXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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