The other day while working with a customer during SQL Server Performance Tuning Practical Workshop, I noticed an MDF file with very strange extensions. When I asked the DBA why they have such a large data file with extension PDF (instead of common MDF file extension), he replied that honestly they have no idea who to rename a data file extension. They had once tried earlier, but that has sent their database into recovery and they had to revert that back immediately.
SQL SERVER – How to Install SQL Server Management Studio (SSMS) From Command Line?
SQL Server Management Studio (SSMS) has been removed from the product release cycle. Now SSMS is shipped as a free tool and doesn’t need to have set up media to install. Earlier I wrote a blog which you can read below.
SQL SERVER – How to Migrate Master Database to New Location?
One of my clients contacted me for On-Demand support with an interesting situation. Their goal was to move ALL databases from C drive to the E drive. They told me that they have done ALTER for all databases (user and system) but it is not working in the master database.
SQL SERVER – Error: 8509 – Import of Microsoft Distributed Transaction Coordinator (MS DTC) transaction failed: 0x8004d00e(XACT_E_NOTRANSACTION)
Have you ever seen an issue related to MS DTC, SQL Server and JDBC XA distributed transactions? A client contacted me for help and he wanted my opinion within one hour. They signed up for my On Demand consulting services and we started looking at the server and application.
SQL SERVER – Wait Stats Collection Scripts for 2016 and Later Versions
Yesterday I posted a blog about a new DMV, which is introduced in SQL Server 2016. You can read the blog post here: Get Wait Stats Related to Specific Session ID With sys.dm_exec_session_wait_stats. After reading the blog post, I have received quite a few emails about SQL Server Wait Stats Collection Scripts. One of the question was is my earlier script still valid to collect the SQL Wait Stats for SQL Server 2016 and Later Versions.
SQL SERVER – Get Wait Stats Related to Specific Session ID With sys.dm_exec_session_wait_stats
First thing first, this feature of getting wait stats related to Specific Session ID with sys.dm_exec_session_wait_stats will only work with SQL Server 2016 or later version of SQL Server. If you attempt to run this on earlier versions of SQL Server, you will for sure get an error.
What is the Biggest Limitation of ISDATE() Function? – Interview Question of the Week #137
Question: What is the Biggest Limitation of ISDATE() Function?
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