Dax Functions 简明教程 DAX Functions - Parent & Child Dax Functions 简明教程 DAX Functions - Parent and Child DAX 父子函数用于管理以数据模型中父子层次结构呈现的数据。 DAX Parent and Child functions are useful in managing data that is presented as a parent/child hierarchy in the Data Model. 以下是 DAX 父项和子项函数 − Following are the DAX Parent and Child functions − DAX PATH function DAX PATHCONTAINS function DAX PATHITEM function DAX PATHITEMREVERSE function DAX PATHLENGTH function