ABAP Select data from SAP table SDB_TREE_BASIC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SDB_TREE_BASIC
*  INTO TABLE @DATA(IT_SDB_TREE_BASIC2).
*--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_SDB_TREE_BASIC INDEX 1 INTO DATA(WA_SDB_TREE_BASIC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SDB_TREE_BASIC>-TREE = 1.
<SDB_TREE_BASIC>-RECEIVER = 1.
<SDB_TREE_BASIC>-HEADER = 1.
<SDB_TREE_BASIC>-T_IMAGE = 1.
<SDB_TREE_BASIC>-HEADING = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SDB_TREE_BASIC-TOOLTIP, sy-vline,
  WA_SDB_TREE_BASIC-WIDTH, sy-vline,
  WA_SDB_TREE_BASIC-WIDTH_PIX, sy-vline,
  WA_SDB_TREE_BASIC-FIELDDESCR, sy-vline,
  WA_SDB_TREE_BASIC-NODE_SELECTION_MODE, sy-vline,
  WA_SDB_TREE_BASIC-ITEM_SELECTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SDB_TREE_BASIC 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_SDB_TREE_BASIC 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_SDB_TREE_BASIC INTO WA_SDB_TREE_BASIC.


*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_SDB_TREE_BASIC_STR, 
TREE TYPE STRING,
RECEIVER TYPE STRING,
HEADER TYPE STRING,
T_IMAGE TYPE STRING,
HEADING TYPE STRING,
TOOLTIP TYPE STRING,
WIDTH TYPE STRING,
WIDTH_PIX TYPE STRING,
FIELDDESCR TYPE STRING,
NODE_SELECTION_MODE TYPE STRING,
ITEM_SELECTION TYPE STRING,
TABLE_REF TYPE STRING,
SOURCE_TABLE_REF TYPE STRING,
EXCLUDED_FUNCTIONS TYPE STRING,
EXCEPT_QINFO TYPE STRING,
ACCDESCRIPTION TYPE STRING,
STRUCTURE_UNCHANGED TYPE STRING,
USE_CELL_DESIGN TYPE STRING,
USE_VISIBLE TYPE STRING,
ITEM_LAYOUT_USAGES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SDB_TREE_BASIC_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_SDB_TREE_BASIC_STR-TREE sy-vline 
WA_SDB_TREE_BASIC_STR-RECEIVER sy-vline 
WA_SDB_TREE_BASIC_STR-HEADER sy-vline 
WA_SDB_TREE_BASIC_STR-T_IMAGE sy-vline 
WA_SDB_TREE_BASIC_STR-HEADING sy-vline 
WA_SDB_TREE_BASIC_STR-TOOLTIP sy-vline 
WA_SDB_TREE_BASIC_STR-WIDTH sy-vline 
WA_SDB_TREE_BASIC_STR-WIDTH_PIX sy-vline 
WA_SDB_TREE_BASIC_STR-FIELDDESCR sy-vline 
WA_SDB_TREE_BASIC_STR-NODE_SELECTION_MODE sy-vline 
WA_SDB_TREE_BASIC_STR-ITEM_SELECTION sy-vline 
WA_SDB_TREE_BASIC_STR-TABLE_REF sy-vline 
WA_SDB_TREE_BASIC_STR-SOURCE_TABLE_REF sy-vline 
WA_SDB_TREE_BASIC_STR-EXCLUDED_FUNCTIONS sy-vline 
WA_SDB_TREE_BASIC_STR-EXCEPT_QINFO sy-vline 
WA_SDB_TREE_BASIC_STR-ACCDESCRIPTION sy-vline 
WA_SDB_TREE_BASIC_STR-STRUCTURE_UNCHANGED sy-vline 
WA_SDB_TREE_BASIC_STR-USE_CELL_DESIGN sy-vline 
WA_SDB_TREE_BASIC_STR-USE_VISIBLE sy-vline 
WA_SDB_TREE_BASIC_STR-ITEM_LAYOUT_USAGES sy-vline      INTO ld_text SEPARATED BY SPACE.

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