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Database Engine Tuning Advisor - is number of queries important or not

By number i don't mean number of unique signature queries I mean raw number For example i have this query select name from my table where id=3 It is a single unique signature Having it only 1 ...
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1answer
149 views

Database Tuning Advisor user permissions

I was asked to create an account to use Database Tuning Advisor. I red on technet but I don't understand which permission do I have to give. I tried to login with this new user, but trying to list ...
2
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1answer
74 views

Why would an index covering only half of primary key be useful?

We have a primitive junction table to store a many-to-many relation between two other tables, their primary keys being bigint: CREATE TABLE [dbo].[JunctionTable] ( [ID-1] [bigint] NOT NULL, ...
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1answer
121 views

Database Tuning Advisor Index Recommendations

How does DTA make an index recommendation? What is the technology behind that? If we can use same on our side then we can shorten the whole process of Tuning recommendation: creating trace file ...
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2answers
621 views

Can I trust the Database Engine Tuning Advisor recommendations?

Our database has become large, and we are trying to optimize performance. Can we follow the recommendations provided by the Database Engine Tuning Advisor by supplying it a .trc file generated with ...
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3answers
1k views

Dropping Hypothetical Indexes

In the past I thought I'd deleted hypothetical indexes using either a DROP INDEX statement for clustered indexes and DROP STATISTICS statement for non-clustered indexes. I have a database that is ...