Readers familiar with the earlier version of this document, "Microsoft SQL Server 6.5: I/O Performance Tuning Quick Reference," will notice that there are not nearly as many sp_configure options that need to be manually adjusted by the database administrator in order to achieve good SQL Server...
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...
SQL Server now choses a Clustered Scan but does not process the descending order clause with a parallel scan even while the Estimated Subtree Cost is over 17%. That’s because, currently a BACKWARD scan is not possible with parallelism. It is good to be aware of such implications ...
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...
Microsoft SQL Server 2000 Performance TuningTechnical ReferenceMicrosoft Corporation
DBA Fundamentals: SQL Server Performance Tuning Presented by Pinal Dave1.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-and-...
When using thelocalcompute context, analysis is performed on your computer and not on the server. Therefore, if you are getting data from SQL Server to use in your code, the data must be fetched over the network. The performance hit incurred for this network transfer depends on the size of...
| Version: 1.0 Date Published: 2/19/2009 File Name: SQL2005_Performance_Tuning.pdf File Size: 198.7 KB This 4-day delivery provides participants with in-depth technical knowledge on performance tuning and optimization techniques for SQL Server 2005. Performance tools such as SQLdiag and Performance...
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" ...