ABAP Select data from SAP table IWOS_ORDER_CHARACTERISTICS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IWOS_ORDER_CHARACTERISTICS
*  INTO TABLE @DATA(IT_IWOS_ORDER_CHARACTERISTICS2).
*--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_IWOS_ORDER_CHARACTERISTICS INDEX 1 INTO DATA(WA_IWOS_ORDER_CHARACTERISTICS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IWOS_ORDER_CHARACTERISTICS>-HAS_USERSTATUS = 1.
<IWOS_ORDER_CHARACTERISTICS>-ALLOWS_HEADERNOTIFICATION = 1.
<IWOS_ORDER_CHARACTERISTICS>-HAS_HEADERNOTIFICATION = 1.
<IWOS_ORDER_CHARACTERISTICS>-HAS_LONGTEXT = 1.
<IWOS_ORDER_CHARACTERISTICS>-HAS_SUBORDERS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IWOS_ORDER_CHARACTERISTICS-HAS_SUPERIOR_ORDER, sy-vline,
  WA_IWOS_ORDER_CHARACTERISTICS-HAS_SERVICE_DATA, sy-vline,
  WA_IWOS_ORDER_CHARACTERISTICS-HAS_REVENUES, sy-vline,
  WA_IWOS_ORDER_CHARACTERISTICS-HAS_REFURBISHMENT_DATA, sy-vline,
  WA_IWOS_ORDER_CHARACTERISTICS-HAS_INSPECTION_LOT, sy-vline,
  WA_IWOS_ORDER_CHARACTERISTICS-ALLOWS_INSPECTION_LOT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IWOS_ORDER_CHARACTERISTICS 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_IWOS_ORDER_CHARACTERISTICS 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_IWOS_ORDER_CHARACTERISTICS INTO WA_IWOS_ORDER_CHARACTERISTICS.


*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_IWOS_ORDER_CHARACTERISTICS_STR, 
HAS_USERSTATUS TYPE STRING,
ALLOWS_HEADERNOTIFICATION TYPE STRING,
HAS_HEADERNOTIFICATION TYPE STRING,
HAS_LONGTEXT TYPE STRING,
HAS_SUBORDERS TYPE STRING,
HAS_SUPERIOR_ORDER TYPE STRING,
HAS_SERVICE_DATA TYPE STRING,
HAS_REVENUES TYPE STRING,
HAS_REFURBISHMENT_DATA TYPE STRING,
HAS_INSPECTION_LOT TYPE STRING,
ALLOWS_INSPECTION_LOT TYPE STRING,
ALLOWS_RES_PREQ_ACTIVATION TYPE STRING,
HAS_QUOTATION_PROCESS TYPE STRING,
BELONGS_TO_SD_ORDER TYPE STRING,
CAN_HAVE_CONTRACT TYPE STRING,
REFERS_TO_CONTRACT TYPE STRING,
IS_RELEASED TYPE STRING,
IS_TECOED TYPE STRING,
IS_COMPLETED TYPE STRING,
IS_LOCKED TYPE STRING,
HAS_SCHEDULE_TIME TYPE STRING,
ALLOWS_COST_ESTIMATION TYPE STRING,
ALLOWS_COST_OF_SALES_ACCOUNTG TYPE STRING,
HAS_AIPP_POSITIONS TYPE STRING,
HAS_TAX_JUR_CODE TYPE STRING,
HAS_FLOC_DOCLINK TYPE STRING,
HAS_EQUI_DOCLINK TYPE STRING,
HAS_ASSEMBLY_DOCLINK TYPE STRING,
HAS_SERMAT_DOCLINK TYPE STRING,
USES_RESPONSIBLE_PARTNER TYPE STRING,
HAS_HEADERTEXT_TOOLBAR TYPE STRING,
HAS_HEADERTEXT_STATUSBAR TYPE STRING,
ALLOWS_OPER_OBJECT_LINK TYPE STRING,
ALLOWS_HEADERNOTIF_REMOVAL TYPE STRING,
HAS_RESPONSIBLE_PERSON TYPE STRING,
HAS_GOS_ATTACHMENTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IWOS_ORDER_CHARACTERISTICS_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_IWOS_ORDER_CHARACTERISTICS_STR-HAS_USERSTATUS sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-ALLOWS_HEADERNOTIFICATION sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_HEADERNOTIFICATION sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_LONGTEXT sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_SUBORDERS sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_SUPERIOR_ORDER sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_SERVICE_DATA sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_REVENUES sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_REFURBISHMENT_DATA sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_INSPECTION_LOT sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-ALLOWS_INSPECTION_LOT sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-ALLOWS_RES_PREQ_ACTIVATION sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_QUOTATION_PROCESS sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-BELONGS_TO_SD_ORDER sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-CAN_HAVE_CONTRACT sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-REFERS_TO_CONTRACT sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-IS_RELEASED sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-IS_TECOED sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-IS_COMPLETED sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-IS_LOCKED sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_SCHEDULE_TIME sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-ALLOWS_COST_ESTIMATION sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-ALLOWS_COST_OF_SALES_ACCOUNTG sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_AIPP_POSITIONS sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_TAX_JUR_CODE sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_FLOC_DOCLINK sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_EQUI_DOCLINK sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_ASSEMBLY_DOCLINK sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_SERMAT_DOCLINK sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-USES_RESPONSIBLE_PARTNER sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_HEADERTEXT_TOOLBAR sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_HEADERTEXT_STATUSBAR sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-ALLOWS_OPER_OBJECT_LINK sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-ALLOWS_HEADERNOTIF_REMOVAL sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_RESPONSIBLE_PERSON sy-vline 
WA_IWOS_ORDER_CHARACTERISTICS_STR-HAS_GOS_ATTACHMENTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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