parent child relation meaning in Chinese

父子关系
父子女关系

When the user navigates to a new table through parent child relations , the
在用户通过父/子关系定位到新表时，会引发
Are similar to hierarchical ones , but they allow multiple parent child relations
与层次数据库类似，但它们允许多个父子关系。
Create an aggregate expression by using one of the functions listed earlier and a child table column as detailed in parent child relation referencing that was discussed earlier
通过使用上面列出的函数之一和上面“父/子关系引用”中详述的子表列，来创建聚合表达式。