ABAP Select data from SAP table ICH_KANBAN_STR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICH_KANBAN_STR
*  INTO TABLE @DATA(IT_ICH_KANBAN_STR2).
*--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_ICH_KANBAN_STR INDEX 1 INTO DATA(WA_ICH_KANBAN_STR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICH_KANBAN_STR>-CONTROL_CYCLE_ID = 1.
<ICH_KANBAN_STR>-CYCLE_CATEGORY = 1.
<ICH_KANBAN_STR>-PRODUCT = 1.
<ICH_KANBAN_STR>-SHIP_TO_LOCATION = 1.
<ICH_KANBAN_STR>-SUPPLIER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICH_KANBAN_STR-SUPPLY_AREA, sy-vline,
  WA_ICH_KANBAN_STR-TARGET_QUANTITY, sy-vline,
  WA_ICH_KANBAN_STR-TARGET_QUAN_UNIT, sy-vline,
  WA_ICH_KANBAN_STR-REFERENCE_ID, sy-vline,
  WA_ICH_KANBAN_STR-REFERENCE_ITM_ID, sy-vline,
  WA_ICH_KANBAN_STR-PACK_PRODUCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICH_KANBAN_STR 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_ICH_KANBAN_STR 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_ICH_KANBAN_STR INTO WA_ICH_KANBAN_STR.


*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 ISOLA, internal->external for field CORRESPONDENCE_LANGUAGE_CODE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ICH_KANBAN_STR-CORRESPONDENCE_LANGUAGE_CODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICH_KANBAN_STR-CORRESPONDENCE_LANGUAGE_CODE.
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_ICH_KANBAN_STR_STR, 
CONTROL_CYCLE_ID TYPE STRING,
CYCLE_CATEGORY TYPE STRING,
PRODUCT TYPE STRING,
SHIP_TO_LOCATION TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLY_AREA TYPE STRING,
TARGET_QUANTITY TYPE STRING,
TARGET_QUAN_UNIT TYPE STRING,
REFERENCE_ID TYPE STRING,
REFERENCE_ITM_ID TYPE STRING,
PACK_PRODUCT TYPE STRING,
KANBAN_QUANTITY TYPE STRING,
BLOCKED_KANBAN_QUAN TYPE STRING,
PERSON_NAME TYPE STRING,
FUNCTIONAL_TITLE_NAME TYPE STRING,
DEPARTMENT_NAME TYPE STRING,
COUNTRY TYPE STRING,
CORRESPONDENCE_LANGUAGE_CODE TYPE STRING,
TELEPHONE TYPE STRING,
MOBILE_PHONE TYPE STRING,
FACSIMILE TYPE STRING,
EMAIL TYPE STRING,
WEB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICH_KANBAN_STR_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_ICH_KANBAN_STR_STR-CONTROL_CYCLE_ID sy-vline 
WA_ICH_KANBAN_STR_STR-CYCLE_CATEGORY sy-vline 
WA_ICH_KANBAN_STR_STR-PRODUCT sy-vline 
WA_ICH_KANBAN_STR_STR-SHIP_TO_LOCATION sy-vline 
WA_ICH_KANBAN_STR_STR-SUPPLIER sy-vline 
WA_ICH_KANBAN_STR_STR-SUPPLY_AREA sy-vline 
WA_ICH_KANBAN_STR_STR-TARGET_QUANTITY sy-vline 
WA_ICH_KANBAN_STR_STR-TARGET_QUAN_UNIT sy-vline 
WA_ICH_KANBAN_STR_STR-REFERENCE_ID sy-vline 
WA_ICH_KANBAN_STR_STR-REFERENCE_ITM_ID sy-vline 
WA_ICH_KANBAN_STR_STR-PACK_PRODUCT sy-vline 
WA_ICH_KANBAN_STR_STR-KANBAN_QUANTITY sy-vline 
WA_ICH_KANBAN_STR_STR-BLOCKED_KANBAN_QUAN sy-vline 
WA_ICH_KANBAN_STR_STR-PERSON_NAME sy-vline 
WA_ICH_KANBAN_STR_STR-FUNCTIONAL_TITLE_NAME sy-vline 
WA_ICH_KANBAN_STR_STR-DEPARTMENT_NAME sy-vline 
WA_ICH_KANBAN_STR_STR-COUNTRY sy-vline 
WA_ICH_KANBAN_STR_STR-CORRESPONDENCE_LANGUAGE_CODE sy-vline 
WA_ICH_KANBAN_STR_STR-TELEPHONE sy-vline 
WA_ICH_KANBAN_STR_STR-MOBILE_PHONE sy-vline 
WA_ICH_KANBAN_STR_STR-FACSIMILE sy-vline 
WA_ICH_KANBAN_STR_STR-EMAIL sy-vline 
WA_ICH_KANBAN_STR_STR-WEB sy-vline      INTO ld_text SEPARATED BY SPACE.

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