PASS Community Summit 2008: Program Sessions (Business Intelligence)

Do you have SSAS queries that you feel should be faster? Multidimensional Expressions, or MDX, is the language used to work with Analysis Services. Similar to SQL for the relational engine, MDX is a language for queries and DDL statements on multidimensional cubes in Analysis Services. Troubleshooting slow MDX queries is often challenging because the level of support provided by the tools and the Analysis Services engine is not as mature as that found in the relational engine. This session covers the methods for examining slow queries using the SQL Profiler and Performance Monitor to determine the need for aggregations, caching problems, memory constraints, and so forth. Best practices for optimizing MDX will be examined, and various server properties will be discussed as necessary to help correct query issues. Attendees will leave armed with a practical approach to locating bottlenecks and strategies for speeding up queries.

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