ABAP Select data from SAP table RECE_FASTENTRY_OBJ_TREE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RECE_FASTENTRY_OBJ_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 RECE_FASTENTRY_OBJ_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 RECE_FASTENTRY_OBJ_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_RECE_FASTENTRY_OBJ_TREE TYPE STANDARD TABLE OF RECE_FASTENTRY_OBJ_TREE,
      WA_RECE_FASTENTRY_OBJ_TREE TYPE RECE_FASTENTRY_OBJ_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: <RECE_FASTENTRY_OBJ_TREE> TYPE RECE_FASTENTRY_OBJ_TREE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RECE_FASTENTRY_OBJ_TREE
*  INTO TABLE @DATA(IT_RECE_FASTENTRY_OBJ_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_RECE_FASTENTRY_OBJ_TREE INDEX 1 INTO DATA(WA_RECE_FASTENTRY_OBJ_TREE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RECE_FASTENTRY_OBJ_TREE>-CREATE_OBJ = 1.
<RECE_FASTENTRY_OBJ_TREE>-CREATE_OBJ_CHECK = 1.
<RECE_FASTENTRY_OBJ_TREE>-OBJNR = 1.
<RECE_FASTENTRY_OBJ_TREE>-IDENT = 1.
<RECE_FASTENTRY_OBJ_TREE>-DESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RECE_FASTENTRY_OBJ_TREE-OBJTYPE, sy-vline,
  WA_RECE_FASTENTRY_OBJ_TREE-XOBJTYPE, sy-vline,
  WA_RECE_FASTENTRY_OBJ_TREE-XLOBJTYPE, sy-vline,
  WA_RECE_FASTENTRY_OBJ_TREE-VALIDFROM, sy-vline,
  WA_RECE_FASTENTRY_OBJ_TREE-VALIDTO, sy-vline,
  WA_RECE_FASTENTRY_OBJ_TREE-OBJVALIDFROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RECE_FASTENTRY_OBJ_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_RECE_FASTENTRY_OBJ_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_RECE_FASTENTRY_OBJ_TREE INTO WA_RECE_FASTENTRY_OBJ_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_RECE_FASTENTRY_OBJ_TREE-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RECE_FASTENTRY_OBJ_TREE-VALIDTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REDAT, internal->external for field OBJVALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_RECE_FASTENTRY_OBJ_TREE-OBJVALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RECE_FASTENTRY_OBJ_TREE-OBJVALIDTO.
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_RECE_FASTENTRY_OBJ_TREE_STR, 
CREATE_OBJ TYPE STRING,
CREATE_OBJ_CHECK TYPE STRING,
OBJNR TYPE STRING,
IDENT TYPE STRING,
DESCRIPTION TYPE STRING,
OBJTYPE TYPE STRING,
XOBJTYPE TYPE STRING,
XLOBJTYPE TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
OBJVALIDFROM TYPE STRING,
OBJVALIDTO TYPE STRING,
ASSIGNONLYINFO TYPE STRING,
ASSIGNONLYINFOCHECK TYPE STRING,
ADJUSTNUMBER TYPE STRING,
XOBJGRP TYPE STRING,
OBJNRSRC TYPE STRING,
OBJASSTYPE TYPE STRING,
OBJNRTRG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RECE_FASTENTRY_OBJ_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_RECE_FASTENTRY_OBJ_TREE_STR-CREATE_OBJ sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-CREATE_OBJ_CHECK sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-OBJNR sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-IDENT sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-DESCRIPTION sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-OBJTYPE sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-XOBJTYPE sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-XLOBJTYPE sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-VALIDFROM sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-VALIDTO sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-OBJVALIDFROM sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-OBJVALIDTO sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-ASSIGNONLYINFO sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-ASSIGNONLYINFOCHECK sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-ADJUSTNUMBER sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-XOBJGRP sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-OBJNRSRC sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-OBJASSTYPE sy-vline 
WA_RECE_FASTENTRY_OBJ_TREE_STR-OBJNRTRG sy-vline      INTO ld_text SEPARATED BY SPACE.

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