ABAP Select data from SAP table IQUEUEDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IQUEUEDATA
*  INTO TABLE @DATA(IT_IQUEUEDATA2).
*--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_IQUEUEDATA INDEX 1 INTO DATA(WA_IQUEUEDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IQUEUEDATA>-MANDT = 1.
<IQUEUEDATA>-SAPOBJECTREPRESENTATION = 1.
<IQUEUEDATA>-SAPOBJECTTASKTYPE = 1.
<IQUEUEDATA>-BUSEVENTSUBSCRIBERCODE = 1.
<IQUEUEDATA>-BUSINESSEVENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IQUEUEDATA-SAPBUSINESSOBJECTKEY1, sy-vline,
  WA_IQUEUEDATA-SAPBUSINESSOBJECTKEY2, sy-vline,
  WA_IQUEUEDATA-SAPBUSINESSOBJECTKEY3, sy-vline,
  WA_IQUEUEDATA-SAPBUSINESSOBJECTKEY4, sy-vline,
  WA_IQUEUEDATA-SAPBUSINESSOBJECTKEY5, sy-vline,
  WA_IQUEUEDATA-SAPBUSINESSOBJECTKEY6, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IQUEUEDATA 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_IQUEUEDATA 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_IQUEUEDATA INTO WA_IQUEUEDATA.


*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_IQUEUEDATA_STR, 
MANDT TYPE STRING,
SAPOBJECTREPRESENTATION TYPE STRING,
SAPOBJECTTASKTYPE TYPE STRING,
BUSEVENTSUBSCRIBERCODE TYPE STRING,
BUSINESSEVENT TYPE STRING,
SAPBUSINESSOBJECTKEY1 TYPE STRING,
SAPBUSINESSOBJECTKEY2 TYPE STRING,
SAPBUSINESSOBJECTKEY3 TYPE STRING,
SAPBUSINESSOBJECTKEY4 TYPE STRING,
SAPBUSINESSOBJECTKEY5 TYPE STRING,
SAPBUSINESSOBJECTKEY6 TYPE STRING,
SAPBUSINESSOBJECTKEY7 TYPE STRING,
BUSEVENTPRIORITY TYPE STRING,
CREATIONUTCDATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IQUEUEDATA_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_IQUEUEDATA_STR-MANDT sy-vline 
WA_IQUEUEDATA_STR-SAPOBJECTREPRESENTATION sy-vline 
WA_IQUEUEDATA_STR-SAPOBJECTTASKTYPE sy-vline 
WA_IQUEUEDATA_STR-BUSEVENTSUBSCRIBERCODE sy-vline 
WA_IQUEUEDATA_STR-BUSINESSEVENT sy-vline 
WA_IQUEUEDATA_STR-SAPBUSINESSOBJECTKEY1 sy-vline 
WA_IQUEUEDATA_STR-SAPBUSINESSOBJECTKEY2 sy-vline 
WA_IQUEUEDATA_STR-SAPBUSINESSOBJECTKEY3 sy-vline 
WA_IQUEUEDATA_STR-SAPBUSINESSOBJECTKEY4 sy-vline 
WA_IQUEUEDATA_STR-SAPBUSINESSOBJECTKEY5 sy-vline 
WA_IQUEUEDATA_STR-SAPBUSINESSOBJECTKEY6 sy-vline 
WA_IQUEUEDATA_STR-SAPBUSINESSOBJECTKEY7 sy-vline 
WA_IQUEUEDATA_STR-BUSEVENTPRIORITY sy-vline 
WA_IQUEUEDATA_STR-CREATIONUTCDATETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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