标题: ORA-19279: XPTY0004 - XQuery dynamic type [打印本页] 作者: admin 时间: 2016-8-31 12:59 标题: ORA-19279: XPTY0004 - XQuery dynamic type ORA-19279: XPTY0004 -XQuery dynamic type mismatch: expected singleton sequence - got multi-item sequence Cause: The XQuery sequence passed in had more than one item. Action: Correctthe XQuery expression to return a single item sequence.