ABAP Select data from SAP table CWFTSKOPENPRQRY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CWFTSKOPENPRQRY
*  INTO TABLE @DATA(IT_CWFTSKOPENPRQRY2).
*--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_CWFTSKOPENPRQRY INDEX 1 INTO DATA(WA_CWFTSKOPENPRQRY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CWFTSKOPENPRQRY>-MANDT = 1.
<CWFTSKOPENPRQRY>-WORKFLOWTASKINTERNALID = 1.
<CWFTSKOPENPRQRY>-WORKFLOWORGLOBJECTTYPE = 1.
<CWFTSKOPENPRQRY>-WORKFLOWORGLOBJECT = 1.
<CWFTSKOPENPRQRY>-WORKFLOWTASKSTATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CWFTSKOPENPRQRY-CREATIONDATE, sy-vline,
  WA_CWFTSKOPENPRQRY-CREATIONDATETIME, sy-vline,
  WA_CWFTSKOPENPRQRY-MDGOVCHGREQWRKFLWTSKCRTNYEAR, sy-vline,
  WA_CWFTSKOPENPRQRY-MDGOVCHGREQWRKFLWTSKCRTNMONTH, sy-vline,
  WA_CWFTSKOPENPRQRY-MDGOVCHGREQWRKFLWTSKCRTNTME, sy-vline,
  WA_CWFTSKOPENPRQRY-MDGOVCHGREQWRKFLWTSKCOMPLTNTME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CWFTSKOPENPRQRY 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_CWFTSKOPENPRQRY 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_CWFTSKOPENPRQRY INTO WA_CWFTSKOPENPRQRY.


*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 MDGOVCHGREQSTEP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CWFTSKOPENPRQRY-MDGOVCHGREQSTEP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CWFTSKOPENPRQRY-MDGOVCHGREQSTEP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MDGOVCHANGEREQUEST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CWFTSKOPENPRQRY-MDGOVCHANGEREQUEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CWFTSKOPENPRQRY-MDGOVCHANGEREQUEST.
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_CWFTSKOPENPRQRY_STR, 
MANDT TYPE STRING,
WORKFLOWTASKINTERNALID TYPE STRING,
WORKFLOWORGLOBJECTTYPE TYPE STRING,
WORKFLOWORGLOBJECT TYPE STRING,
WORKFLOWTASKSTATUS TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONDATETIME TYPE STRING,
MDGOVCHGREQWRKFLWTSKCRTNYEAR TYPE STRING,
MDGOVCHGREQWRKFLWTSKCRTNMONTH TYPE STRING,
MDGOVCHGREQWRKFLWTSKCRTNTME TYPE STRING,
MDGOVCHGREQWRKFLWTSKCOMPLTNTME TYPE STRING,
MDGOVCHGREQWRKFLWTSKCOMPLTNDTE TYPE STRING,
TOPLEVELWORKFLOWTASK TYPE STRING,
WORKFLOWTASKCURRENTUSER TYPE STRING,
WORKFLOWTASKCREATEDBYUSER TYPE STRING,
WORKFLOWTASKDEFINITION TYPE STRING,
MDGOVCHGREQSTEP TYPE STRING,
MDGOVWRKFLWTSKPROCGDAYSINTVL TYPE STRING,
MDGOVWRKFLWTSKPROCGHRSINTVL TYPE STRING,
MDGOVWRKFLWTSKWRKDAYSINTVL TYPE STRING,
MDGOVCHANGEREQUEST TYPE STRING,
MDGOVCHGREQDESCRIPTION TYPE STRING,
MDGOVCHGREQSTATUS TYPE STRING,
MDGOVCHGREQTYPE TYPE STRING,
MDGOVDATAMODEL TYPE STRING,
MDGOVCHGREQPRIORITY TYPE STRING,
MDGOVCHGREQREASON TYPE STRING,
MDGOVCHGREQREJECTIONREASON TYPE STRING,
MDGOVCHGREQCREATIONDATETIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
MDGOVCHGREQCHANGEDATETIME TYPE STRING,
MDGOVCHGREQCHANGEDBYUSER TYPE STRING,
MDGOVCHGREQRELEASEDATETIME TYPE STRING,
MDGOVCHGREQRELEASEDBYUSER TYPE STRING,
MDGOVCHGREQDATAISACTIVATED TYPE STRING,
MDGOVCHGREQDUEDATE TYPE STRING,
MDGOVCHGREQCREATIONDATE TYPE STRING,
MDGOVCHGREQISOVERDUE TYPE STRING,
MDGOVCHGREQISOPEN TYPE STRING,
MDGOVBUSINESSACTIVITY TYPE STRING,
MDCHGPROCESSWORKFLOWTEMPLATE TYPE STRING,
MDGOVCHGREQTYPEISPARALLEL TYPE STRING,
BUSINESSOBJECTTYPE TYPE STRING,
MDGOVCHGREQNMBROFWRKFLWTSKS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CWFTSKOPENPRQRY_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_CWFTSKOPENPRQRY_STR-MANDT sy-vline 
WA_CWFTSKOPENPRQRY_STR-WORKFLOWTASKINTERNALID sy-vline 
WA_CWFTSKOPENPRQRY_STR-WORKFLOWORGLOBJECTTYPE sy-vline 
WA_CWFTSKOPENPRQRY_STR-WORKFLOWORGLOBJECT sy-vline 
WA_CWFTSKOPENPRQRY_STR-WORKFLOWTASKSTATUS sy-vline 
WA_CWFTSKOPENPRQRY_STR-CREATIONDATE sy-vline 
WA_CWFTSKOPENPRQRY_STR-CREATIONDATETIME sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQWRKFLWTSKCRTNYEAR sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQWRKFLWTSKCRTNMONTH sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQWRKFLWTSKCRTNTME sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQWRKFLWTSKCOMPLTNTME sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQWRKFLWTSKCOMPLTNDTE sy-vline 
WA_CWFTSKOPENPRQRY_STR-TOPLEVELWORKFLOWTASK sy-vline 
WA_CWFTSKOPENPRQRY_STR-WORKFLOWTASKCURRENTUSER sy-vline 
WA_CWFTSKOPENPRQRY_STR-WORKFLOWTASKCREATEDBYUSER sy-vline 
WA_CWFTSKOPENPRQRY_STR-WORKFLOWTASKDEFINITION sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQSTEP sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVWRKFLWTSKPROCGDAYSINTVL sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVWRKFLWTSKPROCGHRSINTVL sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVWRKFLWTSKWRKDAYSINTVL sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHANGEREQUEST sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQDESCRIPTION sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQSTATUS sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQTYPE sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVDATAMODEL sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQPRIORITY sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQREASON sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQREJECTIONREASON sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQCREATIONDATETIME sy-vline 
WA_CWFTSKOPENPRQRY_STR-CREATEDBYUSER sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQCHANGEDATETIME sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQCHANGEDBYUSER sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQRELEASEDATETIME sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQRELEASEDBYUSER sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQDATAISACTIVATED sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQDUEDATE sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQCREATIONDATE sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQISOVERDUE sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQISOPEN sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVBUSINESSACTIVITY sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDCHGPROCESSWORKFLOWTEMPLATE sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQTYPEISPARALLEL sy-vline 
WA_CWFTSKOPENPRQRY_STR-BUSINESSOBJECTTYPE sy-vline 
WA_CWFTSKOPENPRQRY_STR-MDGOVCHGREQNMBROFWRKFLWTSKS sy-vline      INTO ld_text SEPARATED BY SPACE.

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