Applies to: SQL Server 2022 (16.x) and later versions Azure SQL Database Azure SQL Managed Instance SQL database in Microsoft Fabric By enabling efficient segment elimination, ordered columnstore indexes provide
Ken Englands SQL Server 6.5 Performance Optimization and Tuning Handbook is recognized by SQL Server administrators as the indispensable guide to tuning and optimization. Now hes revised the book for Microsofts new SQL Server 2000, the most advanced and powerful version yet of SQL Server, which ...
An expression that does not use SARG operators does not improve performance, because the SQL Server Compact Edition query processor has to evaluate every row to determine whether it meets the filter clause. Therefore, an index is not useful on expressions that do not use SARG operators. Non-...
In this recipe, we first created and configured our trace by executing a T-SQL script. The script first declares some required variables whose values are passed as parameters to system stored procedures. It creates a trace by executing the sp_trace_create stored procedure that returns ID of th...
data is processed on the server and all the events included in trace definition are guaranteed to be captured without miss. However, this guarantee comes with performance penalty, because processing trace data on server has an impact on the performance of SQL Server, and hence enabling this optio...
DBA Fundamentals: SQL Server Performance Tuning Presented by Pinal Dave 1.資料庫相容性層級影響基數估計(Cardinality Estimation) 提升資料庫相容性層級就可以改善效能 The New and Improved Cardinality Estimator in SQL Server 2014 https://blogs.technet.microsoft.com/dataplatforminsider/2014/03/17/the-new-an...
Monitor SQL Server Components Required steps to monitor any SQL Server component, such as Activity Monitor, Extended Events, and Dynamic Management Views and Functions, etc. Performance Monitoring and Tuning Tools Lists the monitoring and tuning tools available with SQL Server, such as Live Query Sta...
SQL Server Tools for Analysis and Tuning 57 Sample Data and Workload 57 SQL Profiler 58 SQL Query Analyzer 63 System Monitoring 70 Key Performance Counters to Watch 73 Understanding SQL Server Internals 78 Worker Threads 78 Lazy Writer 79 ...
Tune your application performance. Read the "ADO.NET Tuning" and "SQL Server Tuning" sections of Chapter 17, "Tuning .NET Application Performance" to learn how to resolve performance issues that you identify through the use of tuning metrics. Use the accompanying checklist in the "Checklists" ...
Performance Monitoring & Tuning Tools Live query stats Activity Monitor Data collection Extended events (XEvents) overview SQL Trace Query Store Server Performance & Activity Monitoring Performance monitor Tune Query data Reporting & Analytics Security ...