On Apr 11, 2004, at 3:01 PM, Greg Obleshchuk wrote:
You state that there may or may not be the call-back function wrapper. I would be an advocate for keeping it. This way of handling returned data is most useful. Sometimes when returning thousands or more rows of data you want to cancel the statement without a call-back function you must wait until the statement is finished and then discard the result. Having a call-back allows you (or the user) to terminate the statement.
With the non-callback-API, "executing" the query simply returns a virtual machine ready to get query results. It doesn't actually return any results. You then have to step through the results yourself. So you can pretty much stop the query any time you'd like. And the callback mechanism is now built on top of the non-callback mechanism anyway, so you wouldn't be able to do anything with callbacks you couldn't do without them.
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