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Archives: January 2011

Internals Matter: Why You Should Check Your Page Verify Settings, and I Should Go to Masters Immersion Training (SQL Skills Contest Entry)

This post is about two things:

1) Your Page Verification Settings are Critical

You should confirm you are running with the correct page verification settings on your SQL Server databases. It’s very important, and I’ll show you why.

2) I Should Attend the Awesome SQLSkills Master Immersion Event – Internals…

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2 comments, 497 reads

Posted in LittleKendra on 25 January 2011

Corrupting Databases for Dummies- Hex Editor Edition

Corruption is so ugly it gets a lolworm instead of a lolcat.

Let’s make one thing clear from the start:

This Post Tells You How To Corrupt a SQL Server Database with a Hex Editor in Gruesome Detail

And that’s all this post tells you. Not how to fix anything,… Read more

3 comments, 1,058 reads

Posted in LittleKendra on 24 January 2011

Read from the Right End of the Index: BACKWARD Scans

Optimizing queries is the most fun when you don’t need to add indexes. There’s nothing quite so nice as finding a way to make reading data faster, without slowing down writes or creating new data structures that need to be maintained.

Here’s one way you can use BACKWARD scans to… Read more

1 comments, 796 reads

Posted in LittleKendra on 21 January 2011

Date Rounding Tactics and the Tiny Devil of SMALLDATETIME

Tiny Devils

With every new year I think a little bit about time and dates. This posts looks a little more at that in TSQL.

Rounding Dates: Which way is best?

Sometimes in TSQL you need to round a datetime value to the precision of either a day, hour, minute,… Read more

7 comments, 1,058 reads

Posted in LittleKendra on 6 January 2011

Filling in Data Potholes Redux: Tally Tables vs CTEs

In A Previous Installment

Re-Ducks

… our heroine (that’s me) rediscovered CTEs, specifically in the recursive style. That was in my post “Filling in Data Potholes with Recursive CTEs.”

To recap: I was working on a problem with gaps in temporal data. The basic scenario was:

Imagine that…

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1 comments, 536 reads

Posted in LittleKendra on 4 January 2011