CategoryAnalytics Platform System (APS)

Converting SQL_VARIANT on PDW

There are a number of data types that are currently unsupported on PDW. Among those are SQL_VARIANT. The interesting part of that is that SQL_VARIANT along with several other unsupported data types are found all over the place in system tables in PDW. There is a simple solution, convert the value to something like VARCHAR. Well this wouldn’t be a blog post if that was all I had to say on...

Find Skew in Distributed Tables

The SQL Server PDW (Parallel Data Warehouse) is a beast of a machine. Spreading workload across multiple nodes inside the PDW provides a huge performance gain over a traditional SQL Server; however, when laying out tables it is a little different. There are two options for creating tables on the disk: Replicated: The entire table is stored on each node of the PDW Distributed: The table data is...

Bradley Schacht

Bradley Schacht is a Senior Program Manager on the Microsoft Azure Synapse Analytics team based in Jacksonville, FL. He has worked with Microsoft SQL Server and Azure data services since 2009 as a consultant, trainer, and architect. He has co-authored 4 SQL Server and Power BI books, most recently the Microsoft Power BI Quick Start Guide. Bradley enjoys solving interesting problems and teaching others to use new technology. He frequently presents at community events around the country, is a contributor to sites such as SQLServerCentral.com, and is a member of the Jacksonville SQL Server User Group (JSSUG).

Follow Me