Cube Data and MDX Queries in R

Using Microsoft olapR to Bring Analysis Services OLAP Data Into R Online Anaytical Processing (OLAP) and the R statistical language are both children of the 1990s. However, for much of the intervening time they inhabited different worlds. OLAP, and its query language MDX, lived in the world of databases and queries while R was the […]
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Live SQL Server Data in Power BI: Using DirectQuery

For me, one of the most valuable features of Power BI is the ease with which I can mashup data from a variety of different data sources. This, of course, requires importing data into Power BI’s internal xVelocity engine. For many others, however, it is critical to create Power BI reports and dashboards that reflect […]
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Deductive AI and SQL Server

Watson, IBM’s poster child for artificial intelligence, could not have been built using a single type of AI technology. This is hardly surprising. The intelligence needed to understand a question can differ quite dramatically from the intelligence needed to answer it. Indeed, upon understanding a question it takes intelligence to know what techniques are most […]
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SET NOCOUNT ON Is More Important Than You Think

Most seasoned SQL Server administrators and developers will tell you to include SET NOCOUNT ON in all your stored procedure code. The reason generally given is to turn off the unnecessary “n rows affected” message that appears so often in the Management Studio Message pane. However, the “rows affected” message is only the visible tip […]
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SQL Server’s Graph Database for Contacts and Connections

What are Graph Tables? Amy J, a student in Learning Tree’s course 8463, Querying Microsoft SQL Server 2014 asks “I see SQL Server 2017 has a “graph database” feature. How does a graph differ from the old HierarchyID datatype?”. Good question, Amy. While the old hierarchyID datatype can represesnt, in a very simplistic way, an […]
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