Category Archives: T-SQL
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When were the statistics last updated and how many rows were sampled?
1September 4, 2019 by Kenneth Fisher
TL;DR; Final query is at the bottom. Every now and again (particularly when someone is having performance problems) I’ll get …
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Setting Trigger Order
Leave a commentAugust 26, 2019 by Kenneth Fisher
If you can help it you probably shouldn’t be using triggers. But if you have to use a trigger you …
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Why do DBAs dislike loops?
5August 22, 2019 by Kenneth Fisher
If you started out as a developer you were probably taught how important loops are. They are one of the …
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Constructing a datetime from an integer date and an integer time.
6August 15, 2019 by Kenneth Fisher
Occasionally I’ve seen date and time stored separately as integers. This had some practical applications back before we had date …
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Temporary stored procedures
Leave a commentAugust 7, 2019 by Kenneth Fisher
tl;dr; Temporary stored procedures are excellent for testing pieces of code that are going to go into (or come from) …
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Optional vs Required parameters in Stored Procedures
13July 29, 2019 by Kenneth Fisher
If you are executing a stored procedure with a bunch of parameters it can be a bit of a pain …
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Custom error messages
1July 24, 2019 by Kenneth Fisher
I’m sure lots of you have used the function RAISERROR to handle an error caused by your code. The problem …
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Short circuiting an AND
4July 15, 2019 by Kenneth Fisher
The other day I did a post on how an OR short circuits. It was a somewhat unusual type of …
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What permissions do temp stored procedures use?
6June 19, 2019 by Kenneth Fisher
In a performance tuning class I recently took with Brent Ozar (b/t) he mentioned temporary stored procedures and an interesting …
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It’s interesting how an OR short circuits.
24June 17, 2019 by Kenneth Fisher
I recently did a post on the case expression short circuting and received a very very interesting comment from Chad …
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SQL Studies 