June 2015
Intermediate to advanced
1800 pages
70h 6m
English
book
Microsoft SQL Server 2014 Unleashed
by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
Content preview from Microsoft SQL Server 2014 Unleashed
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Query Analysis and Optimization
In SSAS, you can look at query utilization and performance in a cube. You can look at queries by user, frequency, and execution time to determine how to better optimize aggregations. If a slow-running query is used frequently by many users, or by the CEO, it might be a good candidate for individual tuning. A usage-based analysis capability can be used to change aggregations based on actual live queries that the cube must service. This adjusts aggregations based on a query to reduce response time. You start this wizard by right-clicking the cube’s assigned aggregation within Aggregations and choosing the Usage-Based Optimization option. Figure 46.54 shows the Usage-Based Optimization Wizard splash page.
FIGURE ...
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