24 March 2017

The dynamic members

Usually we consider dynamic members as calculated measures. [Measures] is a special dimension to get the values result.

14 March 2017

My name is Rank, Dense Rank!

The Rank is one of the functions that wasn’t initially designed for the MDX. Well, it’s possible for sure, however it’s not a first class function.

27 December 2016

Web OLAP: Step one

As I have mentioned before I was trying to prototype a web-based viewer:

30 November 2016

The DistinctCount and its rough edges

This is a follow-up on my last distinct count post. I’m going to show you the performance difference and the other aspects that you should bear in mind while projecting the distinct count KPIs.

17 November 2016

Will the SSAS be ported to linux?

It's promised regarding to Microsoft:
   Linux, SSAS, MSSQL

11 November 2016

The totals and the NonEmptyCrossJoin function

Let’s suppose we need a report with the following structure:

17 October 2016

The best DistinctCount practice in SSAS

The DistinctCount aggregation is a semi-addictive aggregation. What does it mean?

13 September 2016

Generate row set recursively

Well, live and learn! I think it is great:
   Tips, MSSQL

13 September 2016

SSAS via Python

After announcing the SQL server on Linux I have realized it would be good to have SSAS on Linux as well. However SSAS 2016 has been released with no new major interesting features, thus I doubt it'll be ported to Linux or at least opensourced to give a chance for being ported by community. Actually MDX could get new functions or improvements also, but I haven't seen any for a decade (or is it just me?).
   SSAS, Python

10 August 2016

Set operation within MDX and months of cooperation case

When it comes to MDX optimization, it is most likely that you have to avoid Set functions, really. Sometimes it's impossible, but avoiding them as often as they show up is the key towards reaching good performance.

© Danylo Korostil