文档解释
ORA-24195: attemp to retrieve the name list of a map message with size exceeding 1024
Cause: The GET_NAMES function returns the names in a varray with a size limit of 1024.
Action: Retrieve in several smaller steps using the GET_NAMES function with OFFSET and LENGTH parameters.
ORA-24195: 该错误是在使用Map Message尝试检索其大小超过1024个字节时产生的。