ORA-31072: Too many child nodes in XMLType fragment for updateXML
Cause: An attempt was made to pass an XMLType fragment with multiple children as new data for the updateXML operator
Action: Extract the desired child from the XMLType before passing it to updateXML as the desired new XML node
https://support.oracle.com/
http://www.oracle.com/
ORA-31071: Invalid database username or GUID string
Cause: An attempt was made to set an invalid username or GUID into an XDB resource metadata property
Action: Verify the validity of the username or GUID and try again
ORA-31070: Invalid database user ID string
Cause: An attempt was made set an invalid user ID into an XDB resource metadata property
Action: Verify the validity of the user ID and try again
ORA-31069: Cannot apply typed changes to non-schema-based XMLType nodes
Cause: An attempt was made to insert, delete, or update a non-schema-based XMLType node using an XML schema definition
Action: Make changes to non-typed nodes only by referencing their tag names
ORA-31068: updateXML expected data format [string] instead of [string]
Cause: An attempt was made to use updateXML to update data with a node of the incorrect type. Text and attribute nodes must be updated with string data, whereas element nodes must be updated with XMLType data
Action: Use CREATEXML or getStringVal to coerce the new data to the proper format
ORA-31067: XML nodes must be updated with valid nodes and of the same type
Cause: An attempt was made to use updateXML to update an XML node with a node of another type
Action: Ensure that the node specified by the XPath matches the type of new data provided
ORA-31066: Insertion of string into string creates a cycle
Cause: An attempt was made to insert a link into the XDB hierarchy that would create a cycle in the tree
Action: Ensure that links to existing resources do not cause cycles
ORA-31065: Cannot modify read-only property [string]
Cause: An attempt was made to modify an immutable XML node
Action: Use only read operations on such properties
ORA-31064: Cannot instantiate abstract element or property [string]
Cause: An attempt was made instantiate an abstract element
Action: Use only read operations on such elements
ORA-31062: Cannot delete an unsaved resource
Cause: An attempt was made to delete a resource that had not been saved to disk
Action: Delete only saved resources