ABAP Select data from SAP table RECA_WB_BROWSER_DATA_TREE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RECA_WB_BROWSER_DATA_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 RECA_WB_BROWSER_DATA_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 RECA_WB_BROWSER_DATA_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_RECA_WB_BROWSER_DATA_TREE TYPE STANDARD TABLE OF RECA_WB_BROWSER_DATA_TREE,
      WA_RECA_WB_BROWSER_DATA_TREE TYPE RECA_WB_BROWSER_DATA_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: <RECA_WB_BROWSER_DATA_TREE> TYPE RECA_WB_BROWSER_DATA_TREE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RECA_WB_BROWSER_DATA_TREE
*  INTO TABLE @DATA(IT_RECA_WB_BROWSER_DATA_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_RECA_WB_BROWSER_DATA_TREE INDEX 1 INTO DATA(WA_RECA_WB_BROWSER_DATA_TREE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RECA_WB_BROWSER_DATA_TREE>-NODEKEY = 1.
<RECA_WB_BROWSER_DATA_TREE>-PARENTNODE = 1.
<RECA_WB_BROWSER_DATA_TREE>-NODELAYOUT = 1.
<RECA_WB_BROWSER_DATA_TREE>-HIDDEN = 1.
<RECA_WB_BROWSER_DATA_TREE>-DISABLED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RECA_WB_BROWSER_DATA_TREE-ISFOLDER, sy-vline,
  WA_RECA_WB_BROWSER_DATA_TREE-N_IMAGE, sy-vline,
  WA_RECA_WB_BROWSER_DATA_TREE-EXP_IMAGE, sy-vline,
  WA_RECA_WB_BROWSER_DATA_TREE-STYLE, sy-vline,
  WA_RECA_WB_BROWSER_DATA_TREE-LAST_HITEM, sy-vline,
  WA_RECA_WB_BROWSER_DATA_TREE-NO_BRANCH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RECA_WB_BROWSER_DATA_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_RECA_WB_BROWSER_DATA_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_RECA_WB_BROWSER_DATA_TREE INTO WA_RECA_WB_BROWSER_DATA_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.

*Conversion exit REDAT, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_RECA_WB_BROWSER_DATA_TREE-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RECA_WB_BROWSER_DATA_TREE-VALIDTO.
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_RECA_WB_BROWSER_DATA_TREE_STR, 
NODEKEY TYPE STRING,
PARENTNODE TYPE STRING,
NODELAYOUT TYPE STRING,
HIDDEN TYPE STRING,
DISABLED TYPE STRING,
ISFOLDER TYPE STRING,
N_IMAGE TYPE STRING,
EXP_IMAGE TYPE STRING,
STYLE TYPE STRING,
LAST_HITEM TYPE STRING,
NO_BRANCH TYPE STRING,
EXPANDER TYPE STRING,
DRAGDROPID TYPE STRING,
NODETEXT TYPE STRING,
ITEMLAYOUT TYPE STRING,
WBNODETYPE TYPE STRING,
WBOBJTYPE TYPE STRING,
WBSUBTYPE TYPE STRING,
WBRELTYPE TYPE STRING,
BROWSERIDENT TYPE STRING,
DESCRIPTION TYPE STRING,
TYPEDESCRIPTION TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
VALIDPERIOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RECA_WB_BROWSER_DATA_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_RECA_WB_BROWSER_DATA_TREE_STR-NODEKEY sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-PARENTNODE sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-NODELAYOUT sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-HIDDEN sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-DISABLED sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-ISFOLDER sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-N_IMAGE sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-EXP_IMAGE sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-STYLE sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-LAST_HITEM sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-NO_BRANCH sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-EXPANDER sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-DRAGDROPID sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-NODETEXT sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-ITEMLAYOUT sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-WBNODETYPE sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-WBOBJTYPE sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-WBSUBTYPE sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-WBRELTYPE sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-BROWSERIDENT sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-DESCRIPTION sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-TYPEDESCRIPTION sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-VALIDFROM sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-VALIDTO sy-vline 
WA_RECA_WB_BROWSER_DATA_TREE_STR-VALIDPERIOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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