1/2/2024 0 Comments Ssas tabular distinct countIn other cases with lots of flags, your measure gives me '23' instead of '16', or '28' instead of '18'.īy the way, each of these visuals was filtered on a certain month through the calendar-table, as well as a filter on a group of objects through a objects table. Well that's great, I thought: almost there! I just need to count how many distinct values are in 'Flags'! When I create a table with the DateTime from the calendar (used in the graph above) and this new measure 'Flags', I get: In the example above, this should be '1'.įlags = IF( - < 0, MIN(Calender) & ": FLAG", BLANK()) My task now was to create a card-visual with the unique number of days that the red part of the graph crosses the green line (at least once per counted day). The three ideas for squeezing 2B+ distinct values into Tabular I have are split columns, split tables, and lowering precision, but of course each is but a workaround. In the screenshot below, you can see what this looks like, the thin green line is the minimum availability: The first thing to consider is whether Tabular is actually a good fit for the scale of your data. sort order specified for distinct count records is incorrect SSAS cube processing. with reason for unavailability (YELLOW) Previous how do i create the worldwideimporters tabular SSAS database. Distinct count calculations on any column in any table of the data model.count the number of objects that were unavailable at a certain 'whole' hour, but categorised into:.count the number of objects that were available at a certain 'whole' hour (BLUE).Using this data, I have created measures that: The calendar date/time-fields are per whole hour. Of course, I also have tables with object codes and the groups they belong to, as well as a calendar table.which are all the distinct colors on the Product dimension table. I have a table with minimum availability per date/time that should be met for specific groups of objects. Often distinct counts are calculated by custom applications and pipelines using a variety of parsing techniques to determine the distinct number of items. By default, sets are evaluated within the context of the cube, not within the current.I have a table with the start- and end-date/times of object's reasons to be unavailable.I have a table with the start- and end-date/times of objects' availability.I have a table with the start- and end-date/times of objects' unavailability.This report is about 'availability' of certain objects. pbi file here (because it contains sensitive data), but I'll try to explain what I'm dealing with. I'm sure you provided a working solution, it just doesn't seem to do the trick in my 'messy' report. The EXCEPT query will show you the NULL value, and then I could see that it needed to be excluded from the distinct count on the fact table.Hi again for your replies. select database, drop database, create table, delete tabel, update table. Key not in (Select Key from DimensionTable where KEY is not NULL) Learn Sql Server Tutorials with sql server, install visual studio, install sql. This is in fact a bad query because NOT IN doesn’t work where there a null values. Key not in (Select Key from DimensionTable) I was initially checking that my dimension contained a key that was required in a fact table using a query like this: If it does, these can be omitted from the measure group via a query in the partition definition (assuming the distinct count measure is in its own measure group)” “Errors in the OLAP storage engine: The sort order specified for distinct count records is incorrect.Ĭheck that the distinctcount column does not contain nulls. I had this issue, and your item (2) regarding NULL values was the answer. This doesn’t really make sense, because the point of a distinct count is that you expect there to be duplicate items that you only want to count once.
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