– Randy Minder Aug 28 '19 at 16:03 And this feature is the basis for the dynamic behavior you're talking about. This function is not supported for use in DirectQuery mode when used in calculated columns or row-level security (RLS) rules. Any DAX expression that returns a table of data. groupBy_ColumnName (Optional) The qualified name of an existing column used to create summary groups based on the values found in it. Am I wrong? I'm not sure I put it right in the question. Hi, I'm brand new on PowerBi, I have 3 facts and I need to get the % of comparison to the previous year. The FILTER function in DAX allows you to iterate down the rows of any table, creating a row context for each and testing whether the row should be included in your calculation. This blog shows you how to use it to replace, remove and amend the query context for a measure (and also explains what this sentence means!). In your edit I found your use of 'external filter' and 'internal filter' a little confusing. But before, how would I need to alter my error-prone DAX statement in order to get - per itemno - the Min and Max - values from the "BaseTable"? You can combine filters using keywords like AND and OR and also nest one filter within another. In DAX there's no way to create a string dynamically and execute it (like in SQL, for example). name: The name given to a total or summarize column, enclosed in double quotes. From what I know, because of using an expression inside the "Base Table", data linage is lost and thus, the row context from the 2nd ADDCOLUMNS is rather uneffective. The CALCULATE function is the most important one in DAX. I want to know who has the highest per unit average and regardless of what the FI-Manager context it will always show this highest per unit average (of all FI-Managers). To summarize: A row context is not filtering the model in any way. If the table has many-to-one relationships with other tables, all the columns of the related tables are part of the filter, too. – John Donnelly Nov 13 '16 at 17:33 ... To Summarize: Filter Context. expression If one wants to apply a filter to the model, then we use the filter context. Filter context filters, row context … Thanks for your response. One of the latest addition to DAX has been the ability to apply an external filter context to SUMMARIZECOLUMNS, which makes this function a perfect replacement for SUMMARIZE in DAX. I always thought that any filter context in place outside of DAX was considered an 'external' or 'outer' filter. Doing a calculated table using "summarize" like below is fine, but totals do not change in the context of the filters against the raw data table. Best regards, Konstantin In the case of row-level calculation, we use the row context. It only tells the DAX which row to use from the table. The CALCULATE function in DAX measures; Removing filters in an expression using CALCULATE (this blog) Using the CALCULATE function to replace filters SUMMARIZECOLUMNS always combines all the filters on the same table into a single filter. By passing a table as a filter to CALCULATE, all the columns of the table for the rows that are active in the filter context are applied as a filter. Basically, there are 4 fields: 1) Year 2) Month 3) Type 4) Revenue I need to make a formula in order to get the % of year and % by month (same period). However, I need the "Group By" action of SUMMARIZE. DAX query Mainly there are two types of context in DAX, ... Filter context is the set of values allowed in each column, based on filter constraints that were applied to the row or that are defined by filter expressions within the formula. Any filter applied in DAX, say in a CALCULATE, was considered an 'inner' filter. REMOVEFILTERS can only be used to clear filters but not to return a table. 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