How To Install Database Engine Tuning Advisor

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I was learning about query/db optimization through a book that says 'From SQL Server Management Studio, select Database Engine Tuning Advisor from the Tools menu' I don't have Database Engine. Use the Database Engine Tuning Advisor Graphical User Interface. On the Database Engine Tuning Advisor GUI, you can tune a database by using the plan cache, workload files, or workload tables. You can use the Database Engine Tuning Advisor GUI to easily view the results of your current tuning session and results of previous tuning sessions.

I have run a server-side profile trace for over an hour to produce a .trc file with all activities in one of my databases.

I have then passed this .trc trace file as a parameter to the database engine tuning advisor.

After running the DTA I get the recommendations: https://parislucky.netlify.app/cadworx-free-download-full-version.html.

How do I script out the recommendations?

I am using SQL Server 2005, and I don't seem to find any other way than scripting them individually which is overly time consuming.

Marcello Miorelli

Marcello MiorelliMarcello Miorelli

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2 Answers

Check the View Tuning Output:

If you want to save all of the Transact-SQL scripts that create or drop all database objects in this recommendation into one script file, click Save Recommendations on the Actions menu.

As always review and test the recommendations before blindly applying them to your PROD environment.

I would highly suggest to look at more sane tools like sp_BlitzIndex from folks at BrentOzar.com

Kin ShahKin Shah

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Please note that a computer generating a list of 'missing indexes' should not be swallowed whole. You will still need to decide which indexes to create, which recommended indexes are near duplicates of existing indexes, and how you should want to handle those issues.

It still requires you making a decision since the generated recommendations need some serious review before using them.

Bart Duncan produced a script that will list the 'missing indexes' using the Dynamic Management Views (DMV) for indexes. This is not exactly the same as the Database Engine Tuning Advisor (DTA), but it is valuable.

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I suggest that you compare the DTA and DMV recommendations on 'missing indexes' for a sanity check.

Bart Duncan's query does generate the code to be used if you create the recommended indexes. (Slightly reformatted for readability.)

Likely many of the DTA recommendations are included in the missing indexes query. Whenever that works for you, then you have the scripts you need. Anything from the DTA that is not included in the DMV recommendation could be hand coded.

RLFRLF

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Database Engine Tuning Advisor Workload

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1 Nov 2010CPOL

Cleaning up after the database tuning engine advisor in SQL

I’ve recently had to do a quick bit of DB performance analysis work on a 3^rd party database to see if I can improve performance (without being too invasive). The quickest way to do this is using the Database Tuning Engine Advisor tool that comes with SQL 2008 (the best way is to have loads of experience and a ton of time to properly analyse the database).

Part of my analysis procedure was to make a script of queries that I could run with and without the DTA recommended indexes to evaluate any real world improvement. This meant I needed to be able to roll back any indexes created by DTA. Unfortunately, DTA gives you an install script for the new indexes but not a removal script. I needed to write something myself.

Fortunately, the DTA created indexes and statistics are all prefixed with _dta_ so it’s relatively easy to write a query to remove the automatically created scripts:

First, to drop the generated statistics:

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Then, drop the generated indexes:

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The database is now back to a pre-DTA’ed state!