![]() ![]() SQL Server requires the argument type of id() to be a subtype of xs:IDREF*. SQL Server does not support the two-argument version of id(). The function then finds the element whose OrderID attribute value matches the input to the id() function. This value is then passed to the id() function. The query expression, retrieves the first value from the IDRES list for the first customer. For each order id, there is an element child under the providing the order value. It lists the order ids for that specific customer. In the following example, the OrderList attribute of the element is an IDREFS type attribute. In this example, the manager attribute is. The following example uses fn:id to retrieve the elements, based on the IDREF manager attribute.Retrieving elements based on the IDREF attribute value. Retrieving elements based on the OrderList IDREFS attribute value This topic provides XQuery examples against XML instances that are stored in various xml type columns in the AdventureWorks2019 database. This indicates that Dave is Joe's manager. If exists, drop the XML schema collection (SC). The query retrieves the element that has an ID attribute value referenced by the manager IDREF attribute of the element. In other words, for a specific employee, the id() function returns employee manager.Ī typed xml variable is created by using the XML schema collection. In this example, the manager attribute is an IDREF type attribute and the eid attribute is an ID type attribute.įor a specific manager attribute value, the id() function finds the element whose ID type attribute value matches the input IDREF value. The following example uses fn:id to retrieve the elements, based on the IDREF manager attribute. Retrieving elements based on the IDREF attribute value This topic provides XQuery examples against XML instances that are stored in various xml type columns in the AdventureWorks2019 database. If the xs:IDREF value does not match any element, the function returns the empty sequence. The result of the function is a sequence of elements in the XML instance, in document order, that has an xs:ID value equal to one or more of the xs:IDREFs in the list of candidate xs:IDREFs. ![]() Returns the sequence of element nodes with xs:ID values that match the values of one or more of the xs:IDREF values supplied in $arg. ![]()
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