标题: ORA-22908: reference to NULL table value [打印本页] 作者: admin 时间: 2016-9-1 08:25 标题: ORA-22908: reference to NULL table value ORA-22908: reference to NULL table value Cause: The evaluation of theTHE subquery or nested table column resulted in a
NULL value implying a NULL table instance. The THE subquery or nested table
column must identify a single non-NULL table instance. Action: Ensure that theevaluation of the THE subquery or nested table column
results in a single non-null table instance. If happening in the context of aninsert
statement where the THE subquery is the target of an insert, then ensure thatan
empty nested table instance is created by updating the nested table column ofthe
parent table's row specifying an empty nested table constructor.