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Archives: June 2011

Are all updates split into delete-insert?

This should be another quick one.

Earlier I saw a forum post where someone asserted that SQL always executes an update as a delete of the row and then an insert of the row with the new values. Now I need another excuse to play with undocumented features, so let’s… Read more

11 comments, 1,442 reads

Posted in SQL In The Wild on 21 June 2011

T-SQL Tuesday: Disasters don’t just come in huge

So we’re supposed to talk about disasters we’ve had or discuss disaster recovery technologies. I’m going to take a slightly different approach…

<soapbox>

I’m in the fortunate position of living in a region of the world that’s relatively free of natural disasters. We’re reasonably geologically stable, the nearest fault lines… Read more

1 comments, 410 reads

Posted in SQL In The Wild on 14 June 2011

On the exorcism of Ghost Records

There was a question earlier on one of the SQL forums as to whether or not Ghost Cleanup overwrote the deleted rows when it ran so as to ensure no one could read that data again.

Now I could just reference Paul Randal‘s blog post where he described Ghost… Read more

3 comments, 1,121 reads

Posted in SQL In The Wild on 7 June 2011