Otherwise, you have to estimate it, because this number cannot change dynamically. To create the right number of calculated columns, you must know in advance the maximum depth of the hierarchy. Your goal is to create one calculated column for each level of the hierarchy. Figure 2 The hierarchy has two branches-one with two levels and one with three levels. You might represent relationships between nodes using a tree structure, where all nodes without a parent are roots of a hierarchy tree, as shown in Figure 2. The Parent column specifies the direct report of each agent, as you see in Figure 1.įigure 1 Values in the Parent column reference the Name column. Suppose you have an Agents table containing sales figures for each agent. The complete pattern also includes measures that improve the visualization of ragged hierarchies in Power Pivot. DAX provides specific functions to naturalize a parent-child hierarchy using calculated columns. To obtain a browsable hierarchy in the data model, you have to naturalize a parent-child hierarchy. DAX does not directly support parent-child hierarchies.
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