Microsoft Dynamics CRM – Filtered Views and SQL Server 2014

Microsoft Dynamics CRM makes extensive use of filtered views – these are standard views in the database, but they prevent unauthorised users (including DBAs) from seeing sensitive data by the way they are coded. During several migrations of Microsoft Dynamics CRM from both the 2011 and 2013 versions to 2015, my project teams have hit performance issues which center on filtered views and the new Cardinality Estimator in SQL Server 2014. The Cardinality Estimator is the part of the database engine that works out how to actually do the work for a particular query, and it was largely based on a code base written for SQL Server 7.0.

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