Despite our warnings about the horrors of pregnancy, childbirth, and babies, some of you are still destined to become parents, if you haven't done it already. Congratulations! Now prepare to be terrified, because you have no idea what you're about to face. And we're not even talking about that first diaper change.
jQuery has two usage styles: 1  Via the $ function, which is a factory method for the jQuery object. These functions, often called commands, are chainable as they all return jQuery objects. 2  Via $.-prefixed functions. These are utility functions, which do not act upon the jQuery object directly.
The exist() method in the WHERE clause returns 1 (True) if the XML does not include any <Specifications> element. Note the use of the not() function (XQuery). The sql:column() function (XQuery) function is used to bring in the value from a non-XML column. This query returns an empty rowset. The query specifies query() and exist() methods of the xml data type and both these methods declare the same namespaces in the query prolog. In this case, you may want to use WITH XMLNAMESPACES to declare the prefix and use it in the query.