Comments on: Oracle REF CURSOR and ColdFusion

By: Jeff Aust

Jeff Aust — Tue, 11 Sep 2007 18:37:15 +0000

Yes, indeed, it was as you recommended. Thanks for the pointer!

Just to add to the note my stored procedure is not contained within a package. Not that I have anything against packages, mind you.

By: Eddie Awad

Eddie Awad — Fri, 07 Sep 2007 23:27:35 +0000

You may have to update the macromedia_drivers.jar file. The following TechNote has more information: http://www.adobe.com/go/42dcb10a

By: Jeff Aust

Jeff Aust — Fri, 07 Sep 2007 20:25:18 +0000

Hmmm? I get the same error as the other Jeff as well. This has been bugging the heck out of me for the past few days because I have a proc I’d like to use in this fashion.

By: Jeff Dugas

Jeff Dugas — Fri, 07 Sep 2007 17:39:05 +0000

Yikes, my CF code got dropped when I posted. No matter, it looked exactly like what you had originally, except I changed the procedure attribute to match the package procedure, used a variable for the DSN, and I wrapped it in a try/catch to dump the exception.

By: Jeff Dugas

Jeff Dugas — Fri, 07 Sep 2007 17:30:42 +0000

I created the package you provided as an example, and used this CF7 code, having provided a value for myDSN elsewhere.

The exception's Detail is: ORA-06550: line 1, column 7: PLS-00306: wrong number or types of arguments in call to 'TEST_PROC' ORA-06550: line 1, column 7: PL/SQL: Statement ignored

Adding a cfprocparam tag that defines the output parameter does not fix the problem (it causes Parameter Type Conflict: sqlType=2006).

So, no luck yet. After doing some further reading, I suspect this could be a problem with the driver we're using (Oracle JDBC thin driver).

By: Eddie Awad

Eddie Awad — Fri, 07 Sep 2007 16:35:33 +0000

Yes. In fact, we do that all the time. I'm not sure what you mean by "no luck". Here is an example of a procedure returning a weak ref cursor:

CREATE OR REPLACE PACKAGE test_pkg
AS
   PROCEDURE test_proc (out_cur OUT sys_refcursor);
END;
/

CREATE OR REPLACE PACKAGE BODY test_pkg
AS
   PROCEDURE test_proc (out_cur OUT sys_refcursor)
   AS
   BEGIN
      OPEN out_cur FOR
         SELECT object_id, object_type, object_name
           FROM all_objects
          WHERE ROWNUM <= 15;
   END test_proc;
END test_pkg;
/

you would then use the same ColdFusion code to call the procedure and access its returned query.

By: Jeff Dugas

Jeff Dugas — Fri, 07 Sep 2007 16:10:53 +0000

Is there a way to do the same thing via a stored procedure, returning the ref cursor as an output parameter? I have tried converting this function into a sproc with one output parameter with no luck (using Oracle 10g and CF7).