Oracle Error Message
ORA-19133: XQST0073: It is a static error if the graph of module imports contains a cycle (that is, if there exists a sequence of modules M1 … Mn such that each Mi imports Mi+1 and Mn imports M1), unless all the modules in the cycle share a common namespace
Reason for the Error
An error occurred during the processing of the XQuery expression.
Solution
Check the detailed error message for the possible causes.