ABAP Select data from SAP table ITSWWWDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITSWWWDATA
*  INTO TABLE @DATA(IT_ITSWWWDATA2).
*--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_ITSWWWDATA INDEX 1 INTO DATA(WA_ITSWWWDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITSWWWDATA>-RELID = 1.
<ITSWWWDATA>-OBJID = 1.
<ITSWWWDATA>-CHECKOUT = 1.
<ITSWWWDATA>-CHECKNEW = 1.
<ITSWWWDATA>-CHNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITSWWWDATA-TDATE, sy-vline,
  WA_ITSWWWDATA-TTIME, sy-vline,
  WA_ITSWWWDATA-TEXT, sy-vline,
  WA_ITSWWWDATA-SELECTED, sy-vline,
  WA_ITSWWWDATA-DEVCLASS, sy-vline,
  WA_ITSWWWDATA-CHHOST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITSWWWDATA 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_ITSWWWDATA 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_ITSWWWDATA INTO WA_ITSWWWDATA.


*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_ITSWWWDATA_STR, 
RELID TYPE STRING,
OBJID TYPE STRING,
CHECKOUT TYPE STRING,
CHECKNEW TYPE STRING,
CHNAME TYPE STRING,
TDATE TYPE STRING,
TTIME TYPE STRING,
TEXT TYPE STRING,
SELECTED TYPE STRING,
DEVCLASS TYPE STRING,
CHHOST TYPE STRING,
CHPATH TYPE STRING,
LONGNAME TYPE STRING,
ITS_APPL TYPE STRING,
ITS_OBJID TYPE STRING,
ITS_LANGU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITSWWWDATA_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_ITSWWWDATA_STR-RELID sy-vline 
WA_ITSWWWDATA_STR-OBJID sy-vline 
WA_ITSWWWDATA_STR-CHECKOUT sy-vline 
WA_ITSWWWDATA_STR-CHECKNEW sy-vline 
WA_ITSWWWDATA_STR-CHNAME sy-vline 
WA_ITSWWWDATA_STR-TDATE sy-vline 
WA_ITSWWWDATA_STR-TTIME sy-vline 
WA_ITSWWWDATA_STR-TEXT sy-vline 
WA_ITSWWWDATA_STR-SELECTED sy-vline 
WA_ITSWWWDATA_STR-DEVCLASS sy-vline 
WA_ITSWWWDATA_STR-CHHOST sy-vline 
WA_ITSWWWDATA_STR-CHPATH sy-vline 
WA_ITSWWWDATA_STR-LONGNAME sy-vline 
WA_ITSWWWDATA_STR-ITS_APPL sy-vline 
WA_ITSWWWDATA_STR-ITS_OBJID sy-vline 
WA_ITSWWWDATA_STR-ITS_LANGU sy-vline      INTO ld_text SEPARATED BY SPACE.

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