ABAP Select data from SAP table FBICRC_S_OVERVIEW_TREE_NODE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FBICRC_S_OVERVIEW_TREE_NODE
*  INTO TABLE @DATA(IT_FBICRC_S_OVERVIEW_TREE_NODE2).
*--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_FBICRC_S_OVERVIEW_TREE_NODE INDEX 1 INTO DATA(WA_FBICRC_S_OVERVIEW_TREE_NODE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FBICRC_S_OVERVIEW_TREE_NODE>-NODE_KEY = 1.
<FBICRC_S_OVERVIEW_TREE_NODE>-HIER_NODE_ID = 1.
<FBICRC_S_OVERVIEW_TREE_NODE>-NODE_TEXT = 1.
<FBICRC_S_OVERVIEW_TREE_NODE>-EXPANDED = 1.
<FBICRC_S_OVERVIEW_TREE_NODE>-PARENT_NODE_KEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FBICRC_S_OVERVIEW_TREE_NODE-IS_SHOWN, sy-vline,
  WA_FBICRC_S_OVERVIEW_TREE_NODE-IS_LEAF, sy-vline,
  WA_FBICRC_S_OVERVIEW_TREE_NODE-CHILDREN_LOAD, sy-vline,
  WA_FBICRC_S_OVERVIEW_TREE_NODE-DIFFERENCE, sy-vline,
  WA_FBICRC_S_OVERVIEW_TREE_NODE-DIFF_CUKY, sy-vline,
  WA_FBICRC_S_OVERVIEW_TREE_NODE-COMP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FBICRC_S_OVERVIEW_TREE_NODE 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_FBICRC_S_OVERVIEW_TREE_NODE 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_FBICRC_S_OVERVIEW_TREE_NODE INTO WA_FBICRC_S_OVERVIEW_TREE_NODE.


*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 AU172, internal->external for field DIFFERENCE
CALL FUNCTION 'CONVERSION_EXIT_AU172_OUTPUT'
  EXPORTING
    input =                      WA_FBICRC_S_OVERVIEW_TREE_NODE-DIFFERENCE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FBICRC_S_OVERVIEW_TREE_NODE-DIFFERENCE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FBICRC_S_OVERVIEW_TREE_NODE-COMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FBICRC_S_OVERVIEW_TREE_NODE-COMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FBICRC_S_OVERVIEW_TREE_NODE-PTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FBICRC_S_OVERVIEW_TREE_NODE-PTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONT_PERSID_COMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FBICRC_S_OVERVIEW_TREE_NODE-CONT_PERSID_COMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FBICRC_S_OVERVIEW_TREE_NODE-CONT_PERSID_COMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field CONT_EMAIL_ADDR_COMP
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_FBICRC_S_OVERVIEW_TREE_NODE-CONT_EMAIL_ADDR_COMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FBICRC_S_OVERVIEW_TREE_NODE-CONT_EMAIL_ADDR_COMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field CONT_EMAIL_ADDR_PTNR
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_FBICRC_S_OVERVIEW_TREE_NODE-CONT_EMAIL_ADDR_PTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FBICRC_S_OVERVIEW_TREE_NODE-CONT_EMAIL_ADDR_PTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONT_PERSID_PTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FBICRC_S_OVERVIEW_TREE_NODE-CONT_PERSID_PTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FBICRC_S_OVERVIEW_TREE_NODE-CONT_PERSID_PTNR.
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_FBICRC_S_OVERVIEW_TREE_NODE_STR, 
NODE_KEY TYPE STRING,
HIER_NODE_ID TYPE STRING,
NODE_TEXT TYPE STRING,
EXPANDED TYPE STRING,
PARENT_NODE_KEY TYPE STRING,
IS_SHOWN TYPE STRING,
IS_LEAF TYPE STRING,
CHILDREN_LOAD TYPE STRING,
DIFFERENCE TYPE STRING,
DIFF_CUKY TYPE STRING,
COMP TYPE STRING,
PTNR TYPE STRING,
COMP_DESC TYPE STRING,
PTNR_DESC TYPE STRING,
CONT_PERSID_COMP TYPE STRING,
CONT_NAME_PTNR TYPE STRING,
CONT_NAME_COMP TYPE STRING,
CONT_NAME_FIRST_COMP TYPE STRING,
CONT_NAME_LAST_COMP TYPE STRING,
CONT_SAPNAME_PTNR TYPE STRING,
CONT_SAPNAME_COMP TYPE STRING,
CONT_EMAIL_ADDR_COMP TYPE STRING,
CONT_EMAIL_ADDR_PTNR TYPE STRING,
CONT_PERSID_PTNR TYPE STRING,
CONT_NAME_FIRST_PTNR TYPE STRING,
CONT_NAME_LAST_PTNR TYPE STRING,
STATUS TYPE STRING,
STATUS_TOOLTIP TYPE STRING,
ICON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FBICRC_S_OVERVIEW_TREE_NODE_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_FBICRC_S_OVERVIEW_TREE_NODE_STR-NODE_KEY sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-HIER_NODE_ID sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-NODE_TEXT sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-EXPANDED sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-PARENT_NODE_KEY sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-IS_SHOWN sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-IS_LEAF sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-CHILDREN_LOAD sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-DIFFERENCE sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-DIFF_CUKY sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-COMP sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-PTNR sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-COMP_DESC sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-PTNR_DESC sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-CONT_PERSID_COMP sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-CONT_NAME_PTNR sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-CONT_NAME_COMP sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-CONT_NAME_FIRST_COMP sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-CONT_NAME_LAST_COMP sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-CONT_SAPNAME_PTNR sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-CONT_SAPNAME_COMP sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-CONT_EMAIL_ADDR_COMP sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-CONT_EMAIL_ADDR_PTNR sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-CONT_PERSID_PTNR sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-CONT_NAME_FIRST_PTNR sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-CONT_NAME_LAST_PTNR sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-STATUS sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-STATUS_TOOLTIP sy-vline 
WA_FBICRC_S_OVERVIEW_TREE_NODE_STR-ICON sy-vline      INTO ld_text SEPARATED BY SPACE.

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