ABAP Select data from SAP table RKE_YS_KEDR_DEP_TREE into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP RKE_YS_KEDR_DEP_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 RKE_YS_KEDR_DEP_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 RKE_YS_KEDR_DEP_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_RKE_YS_KEDR_DEP_TREE TYPE STANDARD TABLE OF RKE_YS_KEDR_DEP_TREE,
      WA_RKE_YS_KEDR_DEP_TREE TYPE RKE_YS_KEDR_DEP_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: <RKE_YS_KEDR_DEP_TREE> TYPE RKE_YS_KEDR_DEP_TREE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RKE_YS_KEDR_DEP_TREE
*  INTO TABLE @DATA(IT_RKE_YS_KEDR_DEP_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_RKE_YS_KEDR_DEP_TREE INDEX 1 INTO DATA(WA_RKE_YS_KEDR_DEP_TREE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RKE_YS_KEDR_DEP_TREE>-TARGET_ID = 1.
<RKE_YS_KEDR_DEP_TREE>-TARGET = 1.
<RKE_YS_KEDR_DEP_TREE>-STEP_ID = 1.
<RKE_YS_KEDR_DEP_TREE>-TARGET_TRANS = 1.
<RKE_YS_KEDR_DEP_TREE>-SOURCE1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RKE_YS_KEDR_DEP_TREE-SOURCE2, sy-vline,
  WA_RKE_YS_KEDR_DEP_TREE-SOURCE3, sy-vline,
  WA_RKE_YS_KEDR_DEP_TREE-SOURCE4, sy-vline,
  WA_RKE_YS_KEDR_DEP_TREE-SOURCE5, sy-vline,
  WA_RKE_YS_KEDR_DEP_TREE-SOURCE6, sy-vline,
  WA_RKE_YS_KEDR_DEP_TREE-METHOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RKE_YS_KEDR_DEP_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_RKE_YS_KEDR_DEP_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_RKE_YS_KEDR_DEP_TREE INTO WA_RKE_YS_KEDR_DEP_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_RKE_YS_KEDR_DEP_TREE_STR, 
TARGET_ID TYPE STRING,
TARGET TYPE STRING,
STEP_ID TYPE STRING,
TARGET_TRANS TYPE STRING,
SOURCE1 TYPE STRING,
SOURCE2 TYPE STRING,
SOURCE3 TYPE STRING,
SOURCE4 TYPE STRING,
SOURCE5 TYPE STRING,
SOURCE6 TYPE STRING,
METHOD TYPE STRING,
PARAM1 TYPE STRING,
USERDEF TYPE STRING,
COND TYPE STRING,
OVERWRITE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RKE_YS_KEDR_DEP_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_RKE_YS_KEDR_DEP_TREE_STR-TARGET_ID sy-vline 
WA_RKE_YS_KEDR_DEP_TREE_STR-TARGET sy-vline 
WA_RKE_YS_KEDR_DEP_TREE_STR-STEP_ID sy-vline 
WA_RKE_YS_KEDR_DEP_TREE_STR-TARGET_TRANS sy-vline 
WA_RKE_YS_KEDR_DEP_TREE_STR-SOURCE1 sy-vline 
WA_RKE_YS_KEDR_DEP_TREE_STR-SOURCE2 sy-vline 
WA_RKE_YS_KEDR_DEP_TREE_STR-SOURCE3 sy-vline 
WA_RKE_YS_KEDR_DEP_TREE_STR-SOURCE4 sy-vline 
WA_RKE_YS_KEDR_DEP_TREE_STR-SOURCE5 sy-vline 
WA_RKE_YS_KEDR_DEP_TREE_STR-SOURCE6 sy-vline 
WA_RKE_YS_KEDR_DEP_TREE_STR-METHOD sy-vline 
WA_RKE_YS_KEDR_DEP_TREE_STR-PARAM1 sy-vline 
WA_RKE_YS_KEDR_DEP_TREE_STR-USERDEF sy-vline 
WA_RKE_YS_KEDR_DEP_TREE_STR-COND sy-vline 
WA_RKE_YS_KEDR_DEP_TREE_STR-OVERWRITE sy-vline      INTO ld_text SEPARATED BY SPACE.

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