SQL Statistics Archives - Page 10 of 11 - SQL Authority with Pinal Dave

SQL SERVER – Get File Statistics Using fn_virtualfilestats

January 8, 2011

Quite often when I am staring at my SSMS I wonder what is going on under the hood in my SQL Server. I often want to know which database is very busy and which database is bit slow because of IO issue. Sometime, I think at the file level as…

SQL SERVER – Copy Statistics from One Server to Another Server

January 5, 2011

Pinal Dave

SQL, SQL Server, SQL Tips and Tricks

SQL Scripts, SQL Statistics

I was recently working on a performance tuning project in Dubai (yeah I was able to see the tallest tower from the window of my work place). I had a very interesting learning experience there. There was a situation where we wanted to receive the schema of original database from…

SQLAuthority News – Statistics and Best Practices – Virtual Tech Days – Nov 22, 2010

November 22, 2010

Pinal Dave

SQL, SQL Performance, SQL Server, SQL Tips and Tricks, SQLAuthority News

MVP, SQL Joins, SQL Statistics

I am honored that I have been invited to speak at Virtual TechDays on Nov 22, 2010 by Microsoft. I will be speaking on my favorite subject of Statistics and Best Practices. This exclusive online event will have 80 deep technical sessions across 3 days – and, attendance is completely…

SQL SERVER – Find Automatically Created Statistics – T-SQL

September 10, 2010

Pinal Dave

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SQL Scripts, SQL Statistics

Earlier, I wrote about my experience at an organization here: SQL SERVER – Plan Cache – Retrieve and Remove – A Simple Script. This blog post briefly narrates another experience I had at the same organization. When I was there, I also looked at the statistics and found something that…

SQL SERVER – Outer Join Not Allowed in Indexed Views

June 29, 2010

Pinal Dave

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SQL Index, SQL Joins, SQL Scripts, SQL Statistics

I recently received an email that contains a question from one of my readers. I have already replied the answer to his email, but I would still like to bring it to your attention and ask if you think I could have done any better with the example I gave.…

SQL SERVER – Disabled Index and Update Statistics

May 28, 2010

Pinal Dave

SQL Performance

SQL Index, SQL Scripts, SQL Server, SQL Statistics

When we try to update the statistics, it throws an error as if the clustered index is disabled. Now let us enable the clustered index only and attempt to update the statistics of the table right after that. Let us learn about Disabled Index and Update Statistics.

SQL SERVER – Update Statistics are Sampled By Default

April 23, 2010

Pinal Dave

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SQL Index, SQL Scripts, SQL Statistics

After reading my earlier post SQL SERVER – Create Primary Key with Specific Name when Creating Table on Statistics, I have received another question by a blog reader. The question is as follows: Question: Are the statistics sampled by default? Answer: Yes. The sampling rate can be specified by the…