此外，You cannot update a column that is referenced in the ON condition clause.，update的字段不可以是on里面的条件字段，否则报：
Columns referenced in the ON Clause cannot be updated: (无法更新 ON 子句中引用的列: )
此外，You cannot update a column that is referenced in the ON condition clause.，update的字段不可以是on里面的条件字段，否则报：
Columns referenced in the ON Clause cannot be updated: (无法更新 ON 子句中引用的列: )