Screenshot Interview Questions

Brent Ozar has the latest in his interview series:

They didn’t give you parameter 26837 – I’m just giving you that so you can see an execution plan.

You don’t have to talk me through the query itself, or what you’d want to do to fix it. In fact, I want you to avoid that altogether.

Instead, tell me what things you need to know before you start tuning, and explain how you’re going to get them.

I think, based on the noise in the comments section, that this is a good question.  Good interview questions are separating in equilibrium (as opposed to pooling).  The question itself is straightforward, but people have such a tendency to jump the gun that they try to answer a question which isn’t being asked.  Then, when reading the question, the set of steps and processes people have is interesting because of how much they differ.

Bonus question:  take your interview answer (“I would do X and Y and Z and then A and B and C and maybe D.”) and apply it to the last time you had this scenario come up.  How many of [A-DX-Z] did you actually do?

Related Posts

Permission Set In A Post-SQL 2017 CLR World

Solomon Rutzky investigates what the PERMISSION_SET property does as of SQL Server 2017: And farther down on that same page, there is a note stating:  Important The PERMISSION_SET option is affected by the clr strict security option, described in the opening warning. When clr strict security is enabled, all assemblies are treated as UNSAFE. The last sentence in each of those quoted statements […]

Read More

Things Not To Do In SQL Server

Randolph West has a how-not-to guide for SQL Server: Don’t use TIMESTAMP We covered this in detail in a previous post, What about TIMESTAMP? It’s better to pretend that this data type doesn’t exist. Why not? It is not what you think it is. TIMESTAMP is actually a row version value based on the amount of time since SQL Server was started. […]

Read More

Categories

May 2016
MTWTFSS
« Apr Jun »
 1
2345678
9101112131415
16171819202122
23242526272829
3031