ABAP Select data from SAP table CKML_S_STULI_TREE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CKML_S_STULI_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 CKML_S_STULI_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 CKML_S_STULI_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_CKML_S_STULI_TREE TYPE STANDARD TABLE OF CKML_S_STULI_TREE,
      WA_CKML_S_STULI_TREE TYPE CKML_S_STULI_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: <CKML_S_STULI_TREE> TYPE CKML_S_STULI_TREE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CKML_S_STULI_TREE
*  INTO TABLE @DATA(IT_CKML_S_STULI_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_CKML_S_STULI_TREE INDEX 1 INTO DATA(WA_CKML_S_STULI_TREE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CKML_S_STULI_TREE>-EBENE = 1.
<CKML_S_STULI_TREE>-HTEXT = 1.
<CKML_S_STULI_TREE>-KALNR_PROC = 1.
<CKML_S_STULI_TREE>-WERKS_PROC = 1.
<CKML_S_STULI_TREE>-MATNR_PROC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CKML_S_STULI_TREE-SOBKZ_PROC, sy-vline,
  WA_CKML_S_STULI_TREE-VBELN_PROC, sy-vline,
  WA_CKML_S_STULI_TREE-POSNR_PROC, sy-vline,
  WA_CKML_S_STULI_TREE-PSPNR_PROC, sy-vline,
  WA_CKML_S_STULI_TREE-LIFNR_PROC, sy-vline,
  WA_CKML_S_STULI_TREE-NAME_PROC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CKML_S_STULI_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_CKML_S_STULI_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_CKML_S_STULI_TREE INTO WA_CKML_S_STULI_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 MATN1, internal->external for field MATNR_PROC
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CKML_S_STULI_TREE-MATNR_PROC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKML_S_STULI_TREE-MATNR_PROC.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABPSP, internal->external for field PSPNR_PROC
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CKML_S_STULI_TREE-PSPNR_PROC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKML_S_STULI_TREE-PSPNR_PROC.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CKML_S_STULI_TREE-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKML_S_STULI_TREE-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field WJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CKML_S_STULI_TREE-WJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKML_S_STULI_TREE-WJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CKML_S_STULI_TREE-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKML_S_STULI_TREE-PSPNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CKML_S_STULI_TREE-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKML_S_STULI_TREE-MEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CKML_S_STULI_TREE-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKML_S_STULI_TREE-GJAHR.
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_CKML_S_STULI_TREE_STR, 
EBENE TYPE STRING,
HTEXT TYPE STRING,
KALNR_PROC TYPE STRING,
WERKS_PROC TYPE STRING,
MATNR_PROC TYPE STRING,
SOBKZ_PROC TYPE STRING,
VBELN_PROC TYPE STRING,
POSNR_PROC TYPE STRING,
PSPNR_PROC TYPE STRING,
LIFNR_PROC TYPE STRING,
NAME_PROC TYPE STRING,
KALNR_MAT TYPE STRING,
SORT_FLAG TYPE STRING,
COLOR TYPE STRING,
PTYP TYPE STRING,
BWKEY TYPE STRING,
WERKS TYPE STRING,
MATNR TYPE STRING,
BWTAR TYPE STRING,
WPERI TYPE STRING,
WJAHR TYPE STRING,
WUNTPER TYPE STRING,
SOBKZ TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
PSPNR TYPE STRING,
LIFNR TYPE STRING,
KTEXT TYPE STRING,
MENGE TYPE STRING,
MENGE_PLAN TYPE STRING,
MENGE_SOLL TYPE STRING,
MENGE_IST TYPE STRING,
MENGE_FIX TYPE STRING,
MEINH TYPE STRING,
PERIO TYPE STRING,
GJAHR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CKML_S_STULI_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_CKML_S_STULI_TREE_STR-EBENE sy-vline 
WA_CKML_S_STULI_TREE_STR-HTEXT sy-vline 
WA_CKML_S_STULI_TREE_STR-KALNR_PROC sy-vline 
WA_CKML_S_STULI_TREE_STR-WERKS_PROC sy-vline 
WA_CKML_S_STULI_TREE_STR-MATNR_PROC sy-vline 
WA_CKML_S_STULI_TREE_STR-SOBKZ_PROC sy-vline 
WA_CKML_S_STULI_TREE_STR-VBELN_PROC sy-vline 
WA_CKML_S_STULI_TREE_STR-POSNR_PROC sy-vline 
WA_CKML_S_STULI_TREE_STR-PSPNR_PROC sy-vline 
WA_CKML_S_STULI_TREE_STR-LIFNR_PROC sy-vline 
WA_CKML_S_STULI_TREE_STR-NAME_PROC sy-vline 
WA_CKML_S_STULI_TREE_STR-KALNR_MAT sy-vline 
WA_CKML_S_STULI_TREE_STR-SORT_FLAG sy-vline 
WA_CKML_S_STULI_TREE_STR-COLOR sy-vline 
WA_CKML_S_STULI_TREE_STR-PTYP sy-vline 
WA_CKML_S_STULI_TREE_STR-BWKEY sy-vline 
WA_CKML_S_STULI_TREE_STR-WERKS sy-vline 
WA_CKML_S_STULI_TREE_STR-MATNR sy-vline 
WA_CKML_S_STULI_TREE_STR-BWTAR sy-vline 
WA_CKML_S_STULI_TREE_STR-WPERI sy-vline 
WA_CKML_S_STULI_TREE_STR-WJAHR sy-vline 
WA_CKML_S_STULI_TREE_STR-WUNTPER sy-vline 
WA_CKML_S_STULI_TREE_STR-SOBKZ sy-vline 
WA_CKML_S_STULI_TREE_STR-VBELN sy-vline 
WA_CKML_S_STULI_TREE_STR-POSNR sy-vline 
WA_CKML_S_STULI_TREE_STR-PSPNR sy-vline 
WA_CKML_S_STULI_TREE_STR-LIFNR sy-vline 
WA_CKML_S_STULI_TREE_STR-KTEXT sy-vline 
WA_CKML_S_STULI_TREE_STR-MENGE sy-vline 
WA_CKML_S_STULI_TREE_STR-MENGE_PLAN sy-vline 
WA_CKML_S_STULI_TREE_STR-MENGE_SOLL sy-vline 
WA_CKML_S_STULI_TREE_STR-MENGE_IST sy-vline 
WA_CKML_S_STULI_TREE_STR-MENGE_FIX sy-vline 
WA_CKML_S_STULI_TREE_STR-MEINH sy-vline 
WA_CKML_S_STULI_TREE_STR-PERIO sy-vline 
WA_CKML_S_STULI_TREE_STR-GJAHR sy-vline      INTO ld_text SEPARATED BY SPACE.

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