parent-child set 父子集合; 父子系 parent-child triangle relationship 亲子三角关系 ..
双语例句
1
When ON delete set NULL is active, when a record is deleted from the parent table, all records in the child table with matching foreign key values are set to NULL.
当ON DELETE SET NULL规则被激活时，如果一条记录从父表中删除，子表中的所有记录以及匹配的外键值都被设置为NULL。
2
Drag the parent work items data set to the report, and add an extra column in which to show the child work items.
将上级工作项数据集合拖拉到报表中，并添加一个额外的列以显示下级工作项。
3
This automatically determines the parent and child relationship between tables, like specifying an exclusive replicate set.