Last week I answered a set of fun interview questions from Mohammad Darab. One question that he asked really jumped out at me:
What are you most proud of doing/accomplishing for the SQL Server community so far in your career?
When you migrate a database, it can be useful to prove that you moved all the data and didn’t miss any transactions. Learn how to use a tail log backup in a migration scenario.
Here’s a great recent question that I got about query tuning and index use:
Assuming that the documented levels of data type precedence in SQL Server are true as of SQL 2016, why does a bigint value not force an index scan when compared against an int column?
Indexes help queries run faster in SQL Server for several reasons. One of those reasons is that indexes can help your update and delete statements lock fewer rows. And I’m not only talking about shared locks, either.
Learn what a Stack Dump is in SQL Server and watch a demo where I cause a stack dump against a test SQL Server instance under load. Learn how to find information about stack dumps on your SQL Server, and how to escalate them when required.
SQL Server has tools that suggest indexes– and they’ll even auto-create the indexes for you.
I’m not a huge fan of these tools because they’ve got some notable flaws: they lead to creating more indexes than you need, and they aren’t super smart about the indexes they recommend.
Ever see those little green messages at the top of an execution plan?
Those are missing index suggestions.
SQL Server loves to suggest that you consider changing up your index game.
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