Blogs

Technical Article

Sparse Columns – ConvertSVtoXML & XMLToResv

  • Article

Not very often I run across something with zero matches in a search engine, but had it happen recently. I had set up a simple demo of a sparse column set and happened to look at the execution plan, was interested to see that the Compute Scalar was backed by ConvertSVtoXML. This was on a select from a table with one row, and then, being a little more curious, updated it with an xml fragment I saw a call to ConvertXMLtoResv. I’d venture that those serve to convert back/forth from XML storage.

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2009-10-15

1,219 reads

Technical Article

Weak Passwords Discovered in the 10,000 Disclosed Hotmail/Live.com/MSN leaked accounts

  • Article

By now, hopefully everyone has heard of the security breach where accounts and passwords were found on a public site listed the account usernames and passwords of some 10,000 users. Initially it was just reported to be Hotmail/Live.com/MSN, but it turns

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2009-10-13

3,534 reads

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Question of the Day

Creating a JSON Document III

I have this data in a table called dbo.NFLTeams

TeamID  TeamName       City             YearEstablished
------  --------       ----             ---------------
1       Cowboys        Dallas           1960
2       Eagles         Philadelphia     1933
3       Packers        Green Bay        1919
4       Chiefs         Kansas City      1960
5       49ers          San Francisco    1946
6       Broncos        Denver           1960
7       Seahawks       Seattle          1976
8       Patriots       New England      1960
If I run this code, how many rows are returned?
SELECT TOP 2 
  json_objectagg('Team' : TeamName)
FROM dbo.NFLTeams;

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