Is there an sql command you can issue to cancel an already running sql statement? Is there an abstract way to identify a statement running in a db system, which could be gotten through iBatis?
-Sasha > From: Michael Zurke <[EMAIL PROTECTED]> > Reply-To: <ibatis-user-java@incubator.apache.org> > Date: Mon, 18 Apr 2005 15:57:39 +0100 > To: <ibatis-user-java@incubator.apache.org> > Subject: Re: canceling statement? > > yes - i think your're right when it comes to the multiple query/combine > result issue - using DAO in this case would definitely make more sense. > but in case DAO doesn't fit my model i still want to be able to built my > own 'multilpe query executor' so i would be nice if i could cancel > statments on the SQLMap layer. but maybe the problem is too specific to > support it on a generic framework level. anyway ;) > > Brice Ruth wrote: >> I could see this being done in a DAO layer, perhaps ... I'm not sure >> that the SqlMap layer is necessarily the right place for it. What do you >> think? >> >> On 4/18/05, *Michael Zurke* <[EMAIL PROTECTED] >> <mailto:[EMAIL PROTECTED]>> wrote: >> >> i think it would make sense if ibatis would support something like >> multiple query processing (e.g. a query executed in parallel on >> different database clusters. then the abstraction layer should combine >> the results. in that case it would be handy to specify a timeout to get >> results back from the most responsive clusters only (-> cancel). but >> this is theoretical since ibatis doesn't support such functionality >> (right?). but still - if there would be something like SQLMap.cancel() >> one could implement the parallel querying quite easy, i guess. >> >> mish >> >> Brandon Goodin wrote: >>> It is not a funciton that is available. But, i'm not sure why it >>> wouldn't be available. iBatis uses straight JDBC underneath. It could >>> provide some functionlaity to cancel. But, i'm not sure how we would >>> provide the criteria for a cancel. Please expound on "why" you would >>> cancel. >>> >>> Brandon >>> >>> On 4/18/05, Brice Ruth <[EMAIL PROTECTED] >> <mailto:[EMAIL PROTECTED]>> wrote: >>> >>>> iBATIS is thread-local. The cancel() method requires that a >> separate thread >>>> cancel a statement in an executing thread. I don't believe this >> would be >>>> supported in this type of framework. >>>> >>>> Reference: >>>> http://java.sun.com/j2se/1.4.2/docs/api/java/sql/Statement.html#cancel() >>>> >>>> BR >>>> >>>> >>>> >>>> On 4/18/05, Michael Zurke <[EMAIL PROTECTED] >> <mailto:[EMAIL PROTECTED]>> wrote: >>>> >>>>> is it somehow possible to cancel an executed query via SQLMaps? >>>>> as far as i know PreparedStatement has a cancel() method for >> that puropse. >>>>> >>>> >>>> >>>> >>>> -- >>>> Brice Ruth >>>> Software Engineer, Madison WI >>> >>> >> >> >> >> >> -- >> Brice Ruth >> Software Engineer, Madison WI
