ABAP Select data from SAP table IOASSIGNMENTS 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 IOASSIGNMENTS 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 IOASSIGNMENTS. 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 IOASSIGNMENTS 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_IOASSIGNMENTS TYPE STANDARD TABLE OF IOASSIGNMENTS,
      WA_IOASSIGNMENTS TYPE IOASSIGNMENTS,
      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: <IOASSIGNMENTS> TYPE IOASSIGNMENTS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IOASSIGNMENTS
*  INTO TABLE @DATA(IT_IOASSIGNMENTS2).
*--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_IOASSIGNMENTS INDEX 1 INTO DATA(WA_IOASSIGNMENTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IOASSIGNMENTS>-CONTROLLER = 1.
<IOASSIGNMENTS>-COMPANY_CODE = 1.
<IOASSIGNMENTS>-CONTROLLER = 1.
<IOASSIGNMENTS>-LIST_ID = 1.
<IOASSIGNMENTS>-LIST_VERSION_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IOASSIGNMENTS-LIST_AGENCY_ID, sy-vline,
  WA_IOASSIGNMENTS-LIST_AGENCY_SCHEME_ID, sy-vline,
  WA_IOASSIGNMENTS-LIST_AGENCY_SCHEME_AGENCY_ID, sy-vline,
  WA_IOASSIGNMENTS-CONTENT, sy-vline,
  WA_IOASSIGNMENTS-PLANT_ID, sy-vline,
  WA_IOASSIGNMENTS-CONTROLLER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IOASSIGNMENTS 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_IOASSIGNMENTS 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_IOASSIGNMENTS INTO WA_IOASSIGNMENTS.


*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_IOASSIGNMENTS_STR, 
CONTROLLER TYPE STRING,
COMPANY_CODE TYPE STRING,
CONTROLLER TYPE STRING,
LIST_ID TYPE STRING,
LIST_VERSION_ID TYPE STRING,
LIST_AGENCY_ID TYPE STRING,
LIST_AGENCY_SCHEME_ID TYPE STRING,
LIST_AGENCY_SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
PLANT_ID TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
RECEIVER_PLANT_ID TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
ACCOUNTING_BUSINESS_AREA_CODE TYPE STRING,
CONTROLLER TYPE STRING,
LIST_ID TYPE STRING,
LIST_VERSION_ID TYPE STRING,
LIST_AGENCY_ID TYPE STRING,
LIST_AGENCY_SCHEME_ID TYPE STRING,
LIST_AGENCY_SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
RESPONSIBLE_COST_CENTER_ID TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_ID TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
RECEIVER_RESPONSIBLE_COST_CENT TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_ID TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
LOCATION TYPE STRING,
CONTROLLER TYPE STRING,
LIST_ID TYPE STRING,
LIST_VERSION_ID TYPE STRING,
LIST_AGENCY_ID TYPE STRING,
LIST_AGENCY_SCHEME_ID TYPE STRING,
LIST_AGENCY_SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
LOCATION_PLANT TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
RECEIVER_LOCATION_PLANT TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
PROFIT_CENTER_ID TYPE STRING,
RECEIVER_PROFIT_CENTER_ID TYPE STRING,
WORK_BREAKDOWN_STRUCTURE_ELEME TYPE STRING,
RECEIVER_WORK_BREAKDOWN_STRUCT TYPE STRING,
TAX_JURISDICTION_CODE TYPE STRING,
CONTROLLER TYPE STRING,
LIST_ID TYPE STRING,
LIST_VERSION_ID TYPE STRING,
LIST_AGENCY_ID TYPE STRING,
LIST_AGENCY_SCHEME_ID TYPE STRING,
LIST_AGENCY_SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
FUNCTIONAL_AREA_ID TYPE STRING,
CONTROLLER TYPE STRING,
LIST_ID TYPE STRING,
LIST_VERSION_ID TYPE STRING,
LIST_AGENCY_ID TYPE STRING,
LIST_AGENCY_SCHEME_ID TYPE STRING,
LIST_AGENCY_SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
OBJECT_CLASS TYPE STRING,
CONTROLLER TYPE STRING,
LIST_ID TYPE STRING,
LIST_VERSION_ID TYPE STRING,
LIST_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
REQUESTING_COMPANY_CODE TYPE STRING,
CONTROLLER TYPE STRING,
LIST_ID TYPE STRING,
LIST_VERSION_ID TYPE STRING,
LIST_AGENCY_ID TYPE STRING,
LIST_AGENCY_SCHEME_ID TYPE STRING,
LIST_AGENCY_SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
REQUESTING_COST_CENTER_ID TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_ID TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
RECEIVER_REQUESTING_COST_CENTE TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_ID TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
REQUESTING_ORDER_ID TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
RECEIVER_REQUESTING_ORDER_ID TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
SALES_ORDER TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
SALES_ORDER_ITEM TYPE STRING,
PERSON_RESPONSIBLE_FOR_COINTER TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
SCHEME_AGENCY_SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IOASSIGNMENTS_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_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-COMPANY_CODE sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-LIST_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_VERSION_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_SCHEME_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-PLANT_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-RECEIVER_PLANT_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-ACCOUNTING_BUSINESS_AREA_CODE sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-LIST_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_VERSION_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_SCHEME_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-RESPONSIBLE_COST_CENTER_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_ID sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-RECEIVER_RESPONSIBLE_COST_CENT sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_ID sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-LOCATION sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-LIST_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_VERSION_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_SCHEME_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-LOCATION_PLANT sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-RECEIVER_LOCATION_PLANT sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-PROFIT_CENTER_ID sy-vline 
WA_IOASSIGNMENTS_STR-RECEIVER_PROFIT_CENTER_ID sy-vline 
WA_IOASSIGNMENTS_STR-WORK_BREAKDOWN_STRUCTURE_ELEME sy-vline 
WA_IOASSIGNMENTS_STR-RECEIVER_WORK_BREAKDOWN_STRUCT sy-vline 
WA_IOASSIGNMENTS_STR-TAX_JURISDICTION_CODE sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-LIST_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_VERSION_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_SCHEME_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-FUNCTIONAL_AREA_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-LIST_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_VERSION_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_SCHEME_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-OBJECT_CLASS sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-LIST_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_VERSION_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-REQUESTING_COMPANY_CODE sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-LIST_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_VERSION_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_SCHEME_ID sy-vline 
WA_IOASSIGNMENTS_STR-LIST_AGENCY_SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-REQUESTING_COST_CENTER_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_ID sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-RECEIVER_REQUESTING_COST_CENTE sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_ID sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-REQUESTING_ORDER_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-RECEIVER_REQUESTING_ORDER_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-SALES_ORDER sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline 
WA_IOASSIGNMENTS_STR-SALES_ORDER_ITEM sy-vline 
WA_IOASSIGNMENTS_STR-PERSON_RESPONSIBLE_FOR_COINTER sy-vline 
WA_IOASSIGNMENTS_STR-CONTROLLER sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-SCHEME_AGENCY_SCHEME_AGENCY_ID sy-vline 
WA_IOASSIGNMENTS_STR-CONTENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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