Saravanan Radhakrishnan

Saravanan
Radhakrishnan

Saravanan Radhakrishnan is the senior production DBA for Revionics in Roseville, CA. He has more than 19 years of experience as a SQL Server DBA.

Articles
How to Dynamically Create and Maintain Table Partitions
Loading new data and purging old data from a table can take a lot of time if a large amount of data is involved. Here's an elegant partition solution that loads and purges data dynamically.
Stored Procedure Provides UPDATE STATISTICS Report
With this stored procedure, you can find out the last time the UPDATE STATISTICS statement was run against all the table indexes in a database.
Update the Statistics on Recently Modified Tables Only 4
Running UPDATE STATISTICS is important but can be time-consuming, especially if you have very large tables. Here's a stored procedure that updates statistics only on those tables where the data has been recently changed, saving time and resources.
T-SQL Statement Tracks Transaction-Less Dates 3
A DBA was asked to produce a list of dates in which there were no transactions from a database that included only the dates in which there were transactions. Here's how he pulled it off.

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From the Blogs
Jul 28, 2015
blog

AlwaysOn Availability Groups and SQL Server Jobs, Part 29: Practical Implementation Tips

My initial goal in writing this series of posts was to outline some of the concerns surrounding Availability Groups (AGs) and SQL Server Agent Jobs – and call out how there is virtually no guidance from Microsoft on this front and then detail some of the pitfalls and options available for tackling this problem domain. I initially expected this series of posts to have between 25 and 30 posts – according to some of the early outlines I created ‘way back when’....More
Jul 6, 2015
blog

AlwaysOn Availability Groups and SQL Server Jobs, Part 28: Additional Options for Tackling Jobs Failover

Throughout this series of posts I’ve taken a somewhat pessimistic view of how SQL Server Agent jobs are managed within most organizations – meaning that most of the code and examples I’ve provided up until this point were based on assumptions about how CHANGE to jobs is managed. That pessimism, to date, has come in two forms:...More
Jul 1, 2015
blog

AlwaysOn Availability Groups and SQL Server Jobs, Part 27: Options and Concerns for More Advanced Deployments

In this series of posts I’ve called out some of the concerns related to SQL Server AlwaysOn Availability Groups and their interaction with SQL Server Agent jobs – both in the form of Batch Jobs (see post #3) and backups....More
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