SQL Server Articles


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Optimizing Microsoft SQL Server Reporting Services: Performance and Access Reports from the Execution Log

Overview In our previous article, Execution Log Reporting: Preparation as a Data Source, we began with a discussion about a valuable source of information for performance and auditing analysis, the Report Server Execution Log. We noted that the Execution Log captures data specific to individual reports, including when a given report was run, identification of […]

Optimizing Microsoft SQL Server Reporting Services: Execution Log Reporting: Preparation as a Data Source

What We Will Need to Complete the Series Tutorials To get the most out of the Optimizing MSSQL Server Reporting Services series, we need to have installed Microsoft SQL Server 2000 Reporting Services, together with Microsoft Visual Studio.NET (required to access Report Designer for report creation). Reporting Services ships with MSSQL Server 2000, and many […]

SQL Server 7.0 and 2000 Trace Flags

Trace flags are used to temporarily enable or disable specific SQL Server database functions, allowing you to change default database behavior or to observe hidden database behavior, and will remain in effect until they are either manually turned off or SQL Server is restarted. Keep in mind that most trace flags are undocumented and Microsoft […]

Optimizing Microsoft SQL Server Analysis Services: MDX Optimization Techniques: Optimizing the CROSSJOIN() Function

Overview In this article, we will return to our intermittent examination of various MDX optimization techniques which we have intermingled with other MSAS optimization topics within this series. The function upon which we will focus will be CROSSJOIN(), whose mission it is to combine two sets of dimension members into one. We will discuss how […]

Optimizing Microsoft SQL Server Analysis Services: Enhance Cube Processing Performance with Optimize Schema

Overview In this article, we will explore another tool that MSAS offers for the enhancement of cube processing, the Optimize Schema option. This option can assist us in significantly reducing a cube’s processing time. Optimize Schema attempts to identify unnecessary joins between our fact and dimension tables, and then to remove them. In many cases, […]

Optimizing Microsoft SQL Server Analysis Services: Optimize Query Performance with a Derived Measure

Overview Because a significant part of my practice consists of being called upon to tune MSAS implementations performed by others, I come across the less-than-optimal use of calculated members quite often. As most of us know, calculated members are dimensions or measures (depending upon the designated parent dimension) that are constructed, using a formula, from […]

Optimizing Microsoft SQL Server Analysis Services: MDX Optimization Techniques: Segregating DISTINCT COUNT

Overview In this article, we will continue the examination of distinct counts we began in our previous article, Considering DISTINCT COUNT. Having discussed why distinct counts are useful, and often required, within the design of robust analysis and reporting applications, we described some of the challenges that are inherent in distinct counts. We then undertook […]

Optimizing Microsoft SQL Server Analysis Services: MDX Optimization Techniques: Considering DISTINCT COUNT

Overview In this article, we will introduce the concept of distinct counts, discussing why they are useful (and often required) within the design of any robust analysis effort. Throughout this article, we will describe some of the challenges that are inherent in distinct counts, and then we will undertake practice exercises to illustrate solutions to […]

Optimizing Microsoft SQL Server Analysis Services: MDX Optimization Techniques: Optimizing NON EMPTY

Overview In this article, we will explore the use of a calculated member property to optimize query performance. Almost anyone who has worked with MSAS for any length of time has become aware of the NON EMPTY keyword in MDX. Empty cells are the reason that most of us are thankful for the NON EMPTY […]

Optimizing Microsoft SQL Server Analysis Services: MDX Optimization Techniques: Caching and Additional Techniques

Introduction and Scope In this article, we will continue our examination of MDX optimization techniques, begun in the article prior to the last, MDX Optimization Techniques: Introduction and the Role of Processing, and continued in the last article, MDX Optimization Techniques: Further Control of Processing Location and Expression Arrangement. In both articles, we focused upon control […]
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