INSERTXMLBEFOREfunction is deprecated. It is still supported for backward compatibility. However, Oracle recommends that you use XQuery Update instead. See Oracle XML DB Developer's Guide for more information.
INSERTXMLBEFORE inserts a user-supplied value into the target XML before the node indicated by the XPath expression. This function is similar to INSERTXMLAFTER, but it inserts before, not after, the target node. Compare this function with INSERTCHILDXML.
XMLType_instance is an instance of
XPath_string is an Xpath expression indicating one or more nodes into which one or more child nodes are to be inserted. You can specify an absolute
XPath_string with an initial slash or a relative
XPath_string by omitting the initial slash. If you omit the initial slash, then the context of the relative path defaults to the root node.
value_expr is a fragment of
XMLType that defines one or more nodes being inserted and their position within the parent node. It must resolve to a string.
namespace_string provides namespace information for the
XPath_string. This parameter must be of type
See Also:Oracle XML DB Developer's Guide for more information about this function
The following example is similar to that for INSERTCHILDXML, but it adds a third
/Owner node before the
/Owner node added in the other example. The output of the query has been formatted for readability.
UPDATE warehouses SET warehouse_spec = INSERTXMLBEFORE(warehouse_spec, '/Warehouse/Building/Owner', XMLType('<Owner>ThirdOwner</Owner>')) WHERE warehouse_id = 3; SELECT warehouse_name, EXTRACT(warehouse_spec, '/Warehouse/Building/Owner') "Owners" FROM warehouses WHERE warehouse_id = 3; WAREHOUSE_NAME Owners ----------------------------------- ------------------------------ New Jersey <Owner>GrandCo</Owner> <Owner>ThirdOwner</Owner> <Owner>LesserCo</Owner>