Database tuning advisor

The first step in using Database Tuning Advisor is defining the tuning task. This function enables the tuning advisor to analyze the workload. From within a query window right click and select the DTA option as shown.

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Start and Use the Database Engine Tuning Advisor

The following example increases the number of cache entries to 2, Note that you can change the font for the report you are viewing. You can start the Database Engine Tuning Advisor graphical user interface GUI in several different ways to support database tuning in a variety of scenarios.

The tuning reports can be viewed by clicking the Reports tab as described in the following practice.

In the Tuning Summary pane, you can view information about this tuning session. If you receive an error about the tuning stop date and time, check the Stop at time on the main Tuning Options tab. By default, the dta utility uses an 8-hour tuning duration. If you create the trace table on a different server, move it to the server that Database Engine Tuning Advisor is tuning databaase using it as your workload.

Database Engine Tuning Advisor examines how queries are processed in the databases you specify, and then recommends how you can improve query processing performance by modifying database structures such as indexes, indexed views, and partitioning.

If you create the trace table on a different server, then move it to the server where Database Engine Tuning Advisor is tuning.

After creating the XML input file, use it as input to the dta command-line utility to tune the workload. Figure 7 - Recommendation comes as script for quicker implementation. By default, the utility connects to the default instance of SQL Server on the local computer.

Workloads can also be embedded in an XML input file, where you can also specify a weight for each event. From within a query window right click and select the DTA option as shown.

When using a trace table as a workload, that table must exist on the same server that Database Engine Tuning Advisor is tuning. This right-click menu enables you to select and deselect recommendations.

Getting Starting with Database Engine Tuning Advisor in SQL Server – Part 1 — neonet-browser.com

The next step involved is executing the tuning task. Select Plan Cache as the workload option. Close the script in Query Editor without running it.

These reports provide information about the existing physical design structures in the database you are tuning, and about the recommended structures. The California Consumer Privacy Act: This option is available if you select one of these physical design structures: Check Save tuning log to save a copy of the tuning log. The result of the analysis can be seen in figure 6. Indexes and indexed views Check this dataabse to include recommendations for adding clustered indexes, nonclustered indexes, and indexed views.

Download AdventureWorks sample database. Figure 6 - Tuning Analysis Results. Select AdventureWorks in the Database for workload analysis list, select AdventureWorks in the Select databases and tables to tune grid, and selecet Save tuning log.

For more information, see Tune a Datbase later in this topic. The Pitfall of Automation. Note When using a trace table as a workload, that table must exist on the same server where Database Engine Tuning Advisor is tuning.

If you remember, we created two heap tables and hence based on joins, Database Engine Tuning Advisor recommends creating cluster indexes on these heap tables. Contains the number of actions performed, and the number of error, success, and warning messages received.

Save the file as MyScript.

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