Topic: BISM
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We are going very close to the release of SQL Server 2012 and after using Analysis Services 2012 for almost one year in a relatively small number of scenarios, I’m really curios to see the questions and the issues that will emerge when its adoption will Read more
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When you create a PowerPivot workbook or a BISM Tabular model (new in Analysis Services 2012), you store data by using the VertiPaq engine, which is an in-memory columnar database. Instead of considering the row of a table as the main unit of storage, Read more
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On January 18th, 2012 at 12pm Eastern Time (which is 5pm GM) Alberto Ferrari will deliver a free online session for the PASS DW/BI Virtual Chapter . This is the official description of the session. Many-to-Many Relationships in DAX The introduction of Read more
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Analysis Services answers to query in MDX, in DAX (by now just for Tabular models) and has a limited capability to answer SQL queries. It is not useful for any development or client tool, but I wanted to write a blog post on it in order to be able to Read more
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A few weeks ago I received a question that inspired me in writing this article about how to handle data at different granularities in PowerPivot and BISM Tabular. I think this is a common pattern when you have a budget table that contains data at an aggregated Read more
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The Microsoft TechEd Europe 2012 will be in Amsterdam this year on June 26-29. The day before (25 June 2012) there are several pre-conference seminars and I’m glad to announce that I and Alberto Ferrari will deliver this one: Using BISM Tabular in Microsoft Read more
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Tomorrow January 10th, 2012 at 3pm Eastern Time (which is 8pm GMT) I will deliver a free online session for the PASS DW/BI Virtual Chapter . This is the official description of the session. Vertipaq vs OLAP: Change Your Data Modeling Approach While in Read more
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I wrote a short article about query projection in DAX. To make the story short, you should always use SUMMARIZE in order to remove columns from a table in a query. Thus, if you just want three columns from a table, instead of writing this in SQL: SELECT Read more
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You should have already read that DAX is simpler than MDX. It’s true, and sometime you have to pay a price for simplicity. I am used to say that DAX is somewhere between SQL and MDX. In fact, SQL requires you to put any relationship in the query (using Read more
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Last week the final session evaluations from PASS Summit 2011 have been communicated to speakers and best scores have been made public. My session was not particularly good: it had very good feedback (overall average 4.32) and some average one, mostly Read more