In Power BI, when importing data with Power Query, one basic performance concept is the use of native queries. The transformations will perform better if they can be converted to a native query, especially a single native query for all transformations. However, this is just a starting point for the optimizations. Sometimes, native queries for … Read more
A few weeks ago I faced this problem: One query on my application was (fortunately in the development environment) was facing a very bad execution time. Since the query was generated by entity framework, I used SQL Profiler to capture the query with all its parameters and execute in SSMS. The query was created using … Read more
SQL Server keeps the most-used execution plans in cache, so it doesn't need to recompile the same queries every time. How can we benefit from this to find potential performance problems in execution plans? Let's see how to find some opportunities for optimization by using information held in SQL Server's plan cache.… Read more
