On 1/15/07, MqUser <[EMAIL PROTECTED]> wrote:
But I thought that the publish subscribe system was to enable one to subscribe to what they wanted and not other messages, thus necessitating querrying.
Yes it does. With messaging systems, you don't 'query' you 'subscribe' to what you want.
And SQL 98?
SQL is used for the selectors (filters) used on subscriptions. So you never 'query' a message bus, you subscribe to a stream of messages which can be filtered using selectors. -- James ------- http://radio.weblogs.com/0112098/
