Today we will see a very simple script that I often use during my Comprehensive Database Performance Health Check. Let us find Total Sessions By Database.
SELECT DB_NAME(resource_database_id) AS DatabaseName, COUNT(*) AS TotalSessions FROM sys.dm_tran_locks GROUP BY DB_NAME(resource_database_id) order by db_name(resource_database_id)
That’s it. It is a very simple script that will list all the sessions for a particular database with a database name and total sessions.
Here is the six-part blog post series I have written based on my last 10 years of experience helping with the Comprehensive Database Performance Health Check. I strongly recommend you to read them as they walk you through my business model.
- Consulting 101 – Why Do I Never Take Control of Computers Remotely?
- Consulting 102 – Why Do I Give 100% Guarantee of My Services?
- Consulting 103 – Why Do I Assure SQL Server Performance Optimization in 4 Hours?
- Consulting 104 – Why Do I Give All of the Performance-Tuning Scripts to My Customers?
- Consulting 105 – Why Don’t I Want My Customers to Return Because of the Same Problem?
- Consulting Wrap Up – What Next and How to Get Started
Here are my few recent videos and I would like to know what is your feedback about them. Do not forget to subscribe SQL in Sixty Seconds series.
- MAX Columns Ever Existed in Table – SQL in Sixty Seconds #182
- Tuning Query Cost 100% – SQL in Sixty Seconds #181
- Queries Using Specific Index – SQL in Sixty Seconds #180
- Read Only Tables – Is it Possible? – SQL in Sixty Seconds #179
- One Scan for 3 Count Sum – SQL in Sixty Seconds #178
- SUM(1) vs COUNT(1) Performance Battle – SQL in Sixty Seconds #177
- COUNT(*) and COUNT(1): Performance Battle – SQL in Sixty Seconds #176
Reference: Pinal Dave (http://blog.SQLAuthority.com)