Andy Warren

I started my SQL journey here at SQLServerCentral as one of the founders, helping to build a place to share and learn that continues to thrive under the editorial guidance of my friend Steve Jones. I've done a lot of volunteer work over the years ranging from our local SQL group (oPASS, SQLOrlando) to serving on the Board of Directors of PASS to designing and building the framework of SQLSaturday (which has gone on to produce more than 1000 locally managed events since we started in 2007). These days I manage a DBA team, but over the years I've been a trainer, consultant, contractor, and DBA. I'm rarely present on social media, the best way to contact me is here, LinkedIn, or via email.

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Blog Post

PASS Update #16

A one topic post this time. As a candidate for Vice President of Marketing for PASS this year I asked...

2009-10-18

631 reads

Technical Article

Sparse Columns – ConvertSVtoXML & XMLToResv

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

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Blogs

SSMS Is Getting Smarter—and This Isn’t Just About Writing SQL

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Continuing with my takeaways from SQLCon and FabCon Europe in Barcelona, let’s talk about...

Yippee-Kai-Yay 2027 Summit in Denver

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Next year the PASS Data Community Summit is in DENVER! and London, but Denver...

PASS Data Community Summit 2026

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Yesterday was the first day of sessions at the PASS Data Community Summit (after...

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Forums

Pay for Performance

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Pay for Performance, which is...

Switching Schemas I

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Switching Schemas I

Enforcing Unique Customer Emails When Duplicates Already Exist

By Imran2629

Comments posted to this topic are about the item Enforcing Unique Customer Emails When...

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Question of the Day

Switching Schemas I

I run this query: 

SELECT 
 s.name AS schemaname
 , o.name AS objectname
 FROM sys.objects o
 INNER JOIN sys.schemas s ON s.schema_id = o.schema_id
 WHERE o.name = 'Beer'
I get one row back for an object named dbo.beer. There is an ETL schema and both of these are nonpartitioned tables. I run this code: 
ALTER TABLE dbo.beer switch TO etl.beer
What happens?

See possible answers