ABAP Select data from SAP table IIRTWOP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IIRTWOP
*  INTO TABLE @DATA(IT_IIRTWOP2).
*--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_IIRTWOP INDEX 1 INTO DATA(WA_IIRTWOP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IIRTWOP>-MANDT = 1.
<IIRTWOP>-INSURANCECLAIM = 1.
<IIRTWOP>-INSURCLMSUBCLM = 1.
<IIRTWOP>-INSURCLMPAYT = 1.
<IIRTWOP>-INSURCLMPAYTITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IIRTWOP-INSURCLMCOVERAGE, sy-vline,
  WA_IIRTWOP-INSURBNFTTYPE, sy-vline,
  WA_IIRTWOP-INSURCLMVERSIONVALIDFROM, sy-vline,
  WA_IIRTWOP-INSURCLMBNFTPROCGPRFLCVRGCAT, sy-vline,
  WA_IIRTWOP-INSURCLMRSRVTYPE, sy-vline,
  WA_IIRTWOP-INSURCLMBENEFITTYPETREE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IIRTWOP 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_IIRTWOP 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_IIRTWOP INTO WA_IIRTWOP.


*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 ALPHA, internal->external for field INSURANCECLAIM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IIRTWOP-INSURANCECLAIM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IIRTWOP-INSURANCECLAIM.
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_IIRTWOP_STR, 
MANDT TYPE STRING,
INSURANCECLAIM TYPE STRING,
INSURCLMSUBCLM TYPE STRING,
INSURCLMPAYT TYPE STRING,
INSURCLMPAYTITEM TYPE STRING,
INSURCLMCOVERAGE TYPE STRING,
INSURBNFTTYPE TYPE STRING,
INSURCLMVERSIONVALIDFROM TYPE STRING,
INSURCLMBNFTPROCGPRFLCVRGCAT TYPE STRING,
INSURCLMRSRVTYPE TYPE STRING,
INSURCLMBENEFITTYPETREE TYPE STRING,
INSURCLMBNFTTYPETREEGENERATION TYPE STRING,
INSURCLMBNFTTYPETREEVERSION TYPE STRING,
INSURCLMVERSIONVALIDTO TYPE STRING,
INSURCLMVERSIONTERMNTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IIRTWOP_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_IIRTWOP_STR-MANDT sy-vline 
WA_IIRTWOP_STR-INSURANCECLAIM sy-vline 
WA_IIRTWOP_STR-INSURCLMSUBCLM sy-vline 
WA_IIRTWOP_STR-INSURCLMPAYT sy-vline 
WA_IIRTWOP_STR-INSURCLMPAYTITEM sy-vline 
WA_IIRTWOP_STR-INSURCLMCOVERAGE sy-vline 
WA_IIRTWOP_STR-INSURBNFTTYPE sy-vline 
WA_IIRTWOP_STR-INSURCLMVERSIONVALIDFROM sy-vline 
WA_IIRTWOP_STR-INSURCLMBNFTPROCGPRFLCVRGCAT sy-vline 
WA_IIRTWOP_STR-INSURCLMRSRVTYPE sy-vline 
WA_IIRTWOP_STR-INSURCLMBENEFITTYPETREE sy-vline 
WA_IIRTWOP_STR-INSURCLMBNFTTYPETREEGENERATION sy-vline 
WA_IIRTWOP_STR-INSURCLMBNFTTYPETREEVERSION sy-vline 
WA_IIRTWOP_STR-INSURCLMVERSIONVALIDTO sy-vline 
WA_IIRTWOP_STR-INSURCLMVERSIONTERMNTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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